Best voltage monitoring relays - Buying Guide
Last Updated: 03/28/2024
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#1
OONO DPST 1NO 1NC 8Amp Power Relay Module, AC/DC 12V Control Voltage
Asin: B089Q6KLPQ | Model: F-1022 Series | PartNumber: F-1022 Series | Ean: 6954525591007
Compact Plastic Case And Wires Connects For Easy Mount. Led Indication For Relay Action..
This Is A Simple And Practical Passive Relay Module, Which Is Very Convenient To Use. It Can Support Both Normally Open And Normally Close. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board. Of Course, You Can Also Choose Not To Lock The Screw..
Output Switch Dpst 1No 1Nc(Double Pole Single Throw, 1X Normally Open And 1X Normally Close ), Rated Current 8A/250Vac Or 8A/30Vdc (One Switch)..
Features
- Input control signal: Voltage AC or DC 12V, Current 33mA.
- Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch).
- Compact plastic case and wires connects for easy mount. LED indication for relay action.
- This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw.
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Brand: OONO | Manufacturer: CZH-LABS
See On Amazon #2
HUAREW 1-Channel 12V Relay Module with optocoupler Isolation Supports high and Low Level triggering (Pack of 10)
Asin: B0B4W7VDL7 | Model: HR-RELAY-12V | PartNumber: HR-RELAY-12V | Ean: 0762917148854 | UPC: 762917148854
Insulation Design: The Relay Board Is Insulated With A Patch Optocoupler, And The Insulation Circuit Prevents The Relay Switching Current From Damaging The E/A Port..
Wide Range Of Applications: Suitable For All Kinds Of Single-Chip Microcomputers, And Can Be Widely Used In Various Power Control Occasions..
High Quality: The Module Adopts Normally Open Interface, High Quality Relay, The Maximum Load Of The Relay Module: Ac 250V/10A, Dc 30V/10A..
With Indicator Light: With Power Supply And Working Dual Indicator Lights. Power Indicator (Green), Relay Status Indicator (Red).
Features
- Convenience: The relay board is designed with 1 interface, humanized design, input and output terminals, and convenient wiring.
- With indicator light: with power supply and working dual indicator lights. Power indicator (green), relay status indicator (red)
- Insulation design: The relay board is insulated with a patch optocoupler, and the insulation circuit prevents the relay switching current from damaging the E/A port.
- High quality: The module adopts normally open interface, high quality relay, the maximum load of the relay module: AC 250V/10A, DC 30V/10A.
- Wide range of applications: suitable for all kinds of single-chip microcomputers, and can be widely used in various power control occasions.
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Brand: HUAREW | Manufacturer: HUAREW
See On Amazon #3
AEDIKO 4pcs DC 5V Relay Module 2 Channel Relay Board with Optocoupler Support High or Low Level Trigger
Asin: B099MC4TJD | Model: AE06233 | PartNumber: AE06233 | Ean: 0701715485006 | UPC: 701715485006
5V Relay Module Is 2 Channel Isolated, Each Relay Can Individually Switch On/Off By An Opto-Isolated Digital Input.
2 Channel Module Equipped With Screwed Terminal Plate And Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers And Be Controlled By A Wide Range Of Microcontrollers.
Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable And Stable.
2 Channel Relay Module 5V Comes With High-Current Relay,Trigger Current : 5Ma.
Features
- 2 Channel Relay Module Voltage : 5V; Normally Open Interfaces Maximum Load : AC 250V/10A, DC 30V/10A
- 2 Channel Relay Module 5V Comes with High-Current Relay,Trigger Current : 5mA
- 5V Relay Module is 2 Channel Isolated, Each Relay Can Individually Switch On/Off by An Opto-Isolated Digital Input
- Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable and Stable
- 2 Channel Module Equipped With Screwed Terminal Plate and Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers and be Controlled by a Wide Range of Microcontrollers
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Brand: AEDIKO | Manufacturer: AEDIKO
Dimensions: 0.70 x 2.00 x 1.00 inches
See On Amazon #4
DPST 1NO 1NC 8 Amp Power Relay Module (AC 110V/115V/120V)
Asin: B09T6YM2MF | Model: HD042-Series | PartNumber: HD042-Series | Ean: 6956601852903
Output Switch Dpst 1No 1Nc(Double Pole Single Throw, 1X Normally Open And 1X Normally Close ), Rated Current 8A/250Vac Or 8A/30Vdc (One Switch)..
Compact Abs Plastic Case And Wires Connect For Easy Mount. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board. Of Course, You Can Also Choose Not To Lock The Screw..
Led Indication For Relay Action..
Input Control Signal: Ac/Dc 5V, Ac/Dc 12V, Ac/Dc24v, Ac/Dc48v, Ac 115V, Ac 230V Selectable..
Features
- This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close.
- Input control signal: AC/DC 5V, AC/DC 12V, AC/DC24V, AC/DC48V, AC 115V, AC 230V Selectable.
- Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch).
- LED indication for relay action.
- Compact ABS plastic case and wires connect for easy mount. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw.
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Brand: HCDC | Manufacturer: Xiken Electronic Technology Co., Ltd.
See On Amazon #5
DPST 1NO 1NC 8Amp Latching Relay Module (DC 12V)
Asin: B08R7G11XC | Model: F-1030 Series | PartNumber: F-1030 Series | Ean: 6954525591564
Support Three Input Control Modes: 1, Use Set And Reset Buttons On The Module(No External Control Switch Or Signal Is Required). 2, External Set And Reset Button(Support Momentary-Action Switch, But Can't Support Self-Holding Switch). 3, For Sink/Npn Output Controller..
Operating Voltage Version: Dc 5V, 12V And 24V Three Versions Selectable. Output Switch Dpst 1No 1Nc(Double Pole Single Throw, 1X Normally Open And 1X Normally Close ), Rated Current 8A/250Vac Or 8A/30Vdc (For One Switch)..
This Is A Simple And Practical Latching Relay Module, Which Is Very Convenient To Use. It Can Support Both Normally Open And Normally Close. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board. Of Course, You Can Also Choose Not To Lock The Screw. Compact Plastic Case And Wires Connects For Easy Mount..
Features
- If you are looking for a latching relay with power-off memory, then this module will be very suitable for you. Even if the power supply is turned off, the status of the output switch will not be affected in any way, it will remain in the state before the power was turned off.
- This is a simple and practical latching relay module, which is very convenient to use. It can support both Normally Open and Normally Close. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw. Compact plastic case and wires connects for easy mount.
- Support three input control modes: 1, Use Set and Reset buttons on the module(No external control switch or signal is required). 2, External Set and Reset button(Support Momentary-action switch, but can't support Self-holding switch). 3, for Sink/NPN output controller.
- Operating voltage version: DC 5V, 12V and 24V three versions selectable. Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (for one switch).
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Brand: OONO | Manufacturer: CZH-LABS
See On Amazon #6
SPDT 10Amp Power Relay Module, Plastic Enclosure and Pre-Wired (AC/DC 24V)
Asin: B0BBR96K9P | Model: F-1056 Series | PartNumber: F-1056 Series | Ean: 6954525631550
Packing List: 1X Relay Module, 1X Npt 1/2” Zinc Alloy Conduit Locknut, 2X M3x50mm Screws..
This Is A Simple And Practical Passive Relay Module, Which Is Very Convenient To Use. All Wires Lead Out Via 1/2” Mounting Nipple, It Can Be Flexible Mounting With Your Junction Box / Outlet Box. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board..
Polycarbonate Plastic Enclosure With A Npt 1/2” Mounting Nipple, Led Indicator And Pre-Wired For A Money-Saving Installation That Is Easy And Quick..
Output Switch Spdt (Single Pole Double Throw), Rated Current 10A / 277Vac Or 10A / 28Vdc..
Features
- Input control signal version: AC/DC 12V, AC/DC 24V, AC 120V, AC208-277V four versions selectable.
- Output switch SPDT (Single Pole Double Throw), rated current 10A / 277VAC or 10A / 28VDC.
- Packing list: 1x relay module, 1x NPT 1/2 Zinc alloy conduit locknut, 2x M3x50mm screws.
- Polycarbonate plastic enclosure with a NPT 1/2 mounting nipple, LED indicator and pre-wired for a money-saving installation that is easy and quick.
- This is a simple and practical passive relay module, which is very convenient to use. All wires lead out via 1/2 mounting nipple, it can be flexible mounting with your junction box / outlet box. Two screw mounting holes are convenient for you to fix it on the wall or wooden board.
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Brand: OONO | Manufacturer: CZH-LABS
See On Amazon #7
ESP32 2 Channel 5V Relay Module 4M Byte Flash Large Capacity Programmable Relay Board for Secondary Development Learning
Asin: B0B8J9SNB5
Output Switching : This Relay Board Contains 2 Way 5V Relay With Output Switching , Suitable For Controlling Loads With Operating Voltage Of Ac250v Or Dc30v Or Less..
Applicable Scenario: This Dual Relay Module Is Suitable For Secondary Development Learning, Smart Home, Wireless Control, Etc. If You Have Related Needs Then This One Is Suitable For You..
Large Capacity: This Dual Relay Module Has A Large Enough Capacity Of 4M, You Can Use It With The Actual Situation..
Safe : The Dual Relay Board Is Equipped With Wifi And Ble Modules.
Features
- Mature and Stable Module: This module supports I/O port as well as UART program download port all pinout, programmable keys and reset keys, mature and stable.
- Safe : The dual relay board is equipped with WiFi and BLE modules
- Output Switching : This relay board contains 2 way 5V relay with output switching , suitable for controlling loads with operating voltage of AC250V or DC30V or less.
- Large Capacity: This dual relay module has a large enough capacity of 4M, you can use it with the actual situation.
- Applicable Scenario: This dual relay module is suitable for secondary development learning, smart home, wireless control, etc. If you have related needs then this one is suitable for you.
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Brand: Walfront | Manufacturer: Walfront
See On Amazon #8
3 Phase Voltage Monitoring Sequence Relay JVR800-2 Voltage Protection Relay Under Over Voltage Protector
Asin: B07Q5Z1CGM | Model: YWBL-WH6ewt8gi2yq | PartNumber: YWBL-WH6ewt8gi2yq | Ean: 0747333418897 | UPC: 747333418897
The Composition Of This Product: Three-Phase Voltage Protector, Chronograph And Counter Are Integrated In One Relay..
The Lcd Can Display Data For Easy Reading..
2 Rest Modules Are Optional, Manual And Automatic..
Practicality: This 3-Phase Voltage Relay Does Not Require An External Power Supply. Has Practical Functions: Power Delay, Output Test, Etc..
Features
- Function: This voltage protection relay has overvoltage, undervoltage, phase loss, phase sequence and unbalanced three-phase voltage protection.
- Practicality: This 3-phase voltage relay does not require an external power supply. Has practical functions: power delay, output test, etc.
- The Composition of This Product: Three-phase voltage protector, chronograph and counter are integrated in one relay.
- 2 rest modules are optional, manual and automatic.
- The LCD can display data for easy reading.
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Brand: YWBL-WH | Manufacturer: YWBL-WH
Dimensions: 0.00 x 0.00 x 0.00 inches | Weight: 0.29 Pounds
See On Amazon #9
JESSINIE 5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board
Asin: B0BG2F7349
Dual Power Supply Selection Design Has Strong Anti-Interference Ability And High Reliability Of Photoelectric Isolation Protection.
The External Connection Adopts Rotary Crimping Terminal To Make The Connection Firmer, With Fixed Mounting Holes For Easy Installation.
Onboard 3V,10A/250Vac; 10A/30V Dc Relay, Which Can Be Continuously Closed For 100,000 Times, With Diode Laxative Protection, Short Response Time.
The Signal Input Port Can Be Connected To The Io Port Of The Single Chip Microcomputer, And The High-Level Signal Is Driven.
Features
- Indicator with output signal
- The signal input port can be connected to the IO port of the single chip microcomputer, and the high-level signal is driven
- Dual power supply selection design has strong anti-interference ability and high reliability of photoelectric isolation protection
- Onboard 3V,10A/250VAC; 10A/30V DC relay, which can be continuously closed for 100,000 times, with diode laxative protection, short response time
- The external connection adopts rotary crimping terminal to make the connection firmer, With fixed mounting holes for easy installation
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Brand: JESSINIE | Manufacturer: JESSINIE
See On Amazon #10
Alinan 4pcs 4CH Optocoupler PC817 4 Channel Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module
Asin: B09ZH6D7CQ | Model: Alinan | PartNumber: Alinan | Ean: 0701715514935 | UPC: 701715514935
★Photoelectric Isolation Has Strong Anti-Interference Ability. Can Drive Big Behindpower Triodes, Mos Tubes, Etc., Where High Voltage Driving Is Required, Can Also Directly Drive Low Power 24V Relays..
★Through The Jumper Cap Can Achieve Whether The Output Is High Potential Output Or Low Output.The 4Th And 817 On The Board Are Independent, Which Can Realize Simultaneous Control Of Different Voltages, Etc..
★If It Is A Pulse Signal, Please Note That The Limit Of 817 Is Below 4Khz. If The Control Signal Is Greater Than 4Khz, Please Do Not Use This Module, It Will Not Work Properly..
★Can Realize 3.3V Or 5V To Control The Interface Of 3.6-30V Voltage . After The Control Terminal Is Turned On, The Controlled Terminal Will Also Be Turned On..
Features
- Driving Port Signal Voltage: 3.6-24V; Output Port Voltage Port: 3.6-30V
- Can realize 3.3V or 5V to control the interface of 3.6-30V voltage . After the control terminal is turned on, the controlled terminal will also be turned on.
- Photoelectric isolation has strong anti-interference ability. Can drive big behindPower triodes, MOS tubes, etc., where high voltage driving is required, can also directly drive low power 24V relays.
- If it is a pulse signal, please note that the limit of 817 is below 4KHZ. If the control signal is greater than 4KHZ, please do not use this module, it will not work properly.
- Through the jumper cap can achieve whether the output is high potential output or low output.The 4th and 817 on the board are independent, which can realize simultaneous control of different voltages, etc.
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Brand: Alinan | Manufacturer: Alinan
See On Amazon #11
GEYA Single Phase Voltage Relay Adjustable Over or Under Voltage Protection Monitor Relay 1SPDT 10A (GRV8-01,AC/DC110V-240V)
Asin: B09WYKDMCH | Model: GRV8-01 AD240 | PartNumber: GRV8-01 AD240 | Ean: 0736961740654 | UPC: 736961740654
Voltage Measurement Accuracy<1%.
Product Size:Ultra-Small Size, Only 18Mm Width, 35Mm Rail Mounting..
Relay Status:Its Working Status Is Indicated By The Led Indicator..
User May Select Operation Mode Through Knob.
Features
- Controls its own supply voltage(True RMS measurement)
- User may select operation mode through knob
- Voltage measurement accuracy<1%
- Relay Status:Its working status is indicated by the LED indicator.
- Product Size:Ultra-small size, only 18mm width, 35mm rail mounting.
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Brand: GEYA | Manufacturer: ZHEJIANG GEYA ELECTRICAL CO.,LTD
See On Amazon #12
AEDIKO DC 12V Relay Module 8 Channel Relay Board with OPTO-Isolated High or Low Level Trigger
Asin: B099F55Q6M | Model: AE19532 | PartNumber: AE19532 | Ean: 0701715481473 | UPC: 701715481473
12V Relay Module Is 8 Channel Isolated, Each Relay Can Individually Switch On/Off By An Opto-Isolated Digital Input.
8 Channel Module Equipped With Screwed Terminal Plate And Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers And Be Controlled By A Wide Range Of Microcontrollers.
Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable And Stable.
8 Channel Relay Module 12V Comes With High-Current Relay,Trigger Current : 5Ma.
Features
- 8 Channel Relay Module Voltage : 12V; Normally Open Interfaces Maximum Load : AC 250V/10A, DC 30V/10A
- 8 Channel Relay Module 12V Comes with High-Current Relay,Trigger Current : 5mA
- 12V Relay Module is 8 Channel Isolated, Each Relay Can Individually Switch On/Off by An Opto-Isolated Digital Input
- Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable and Stable
- 8 Channel Module Equipped With Screwed Terminal Plate and Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers and be Controlled by a Wide Range of Microcontrollers
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Brand: AEDIKO | Manufacturer: AEDIKO
Dimensions: 0.70 x 5.40 x 2.20 Inches
See On Amazon #13
AD584KH High Precision 4-Channel 2.5V/7.5V/5V/10V Voltage Reference Module with Case
Asin: B07SR9KTV6 | Model: YWBL-WHqhe9a7us2x | PartNumber: YWBL-WHqhe9a7us2x | Ean: 0712979592867 | UPC: 712979592867
Built In Lithium Battery, Easy To Carry, Can Be Charged By Dc 5V, With Charging Indicator..
Single Button Operation To Switch Reference Voltage, Easy To Operate..
Transparent Housing Protects The Module From Damage And Provides A Clear View, Greatly Enhancing Work Efficiency..
Single Chip Switch 4 Channel Reference Voltage Output With Led Indicator..
Features
- Built in AD584kh provides the highest accuracy and stability.
- Single chip switch 4 channel reference voltage output with LED indicator.
- Built in lithium battery, easy to carry, can be charged by DC 5V, with charging indicator.
- Transparent housing protects the module from damage and provides a clear view, greatly enhancing work efficiency.
- Single button operation to switch reference voltage, easy to operate.
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Brand: YWBL-WH | Manufacturer: YWBL-WH
Dimensions: 0.00 x 0.00 x 0.00 inches
See On Amazon #14
HiLetgo 2pcs INA3221 Current Power Voltage Monitor Triple Channel Monitor High-Side Measurement Shunt and Bus Voltage Monitor with I2C SMBUS Interface
Asin: B09KGYY6QW | Model: 3-01-1673 | PartNumber: 3-01-1673
The I2c- And Smbus Interface Features Four Programmable Addresses..
This Ina3221 Monitors Both Shunt Voltage Drops And Bus Supply Voltages, In Addition To Having Programmable Conversion Times And Averaging Modes For These Signals..
This Board/Chip Uses I2c 7-Bit Addresses 0X40, 0X41, 0X44, 0X45, Selectable With Jumpers..
High-Side Measurement, Shunt And Bus Voltage Monitor With I 2C- And Smbus Interface.
Features
- INA3221 Current Power Voltage Monitor Triple Channel Monitor
- High-Side Measurement, Shunt and Bus Voltage Monitor with I 2C- and SMBUS Interface
- The I2C- and SMBUS interface features four programmable addresses.
- This board/chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers.
- This INA3221 monitors both shunt voltage drops and bus supply voltages, in addition to having programmable conversion times and averaging modes for these signals.
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Brand: HiLetgo | Manufacturer: HiLetgo
See On Amazon #15
SVP912 120VAC Self Recovery Under Voltage Protector Adjustable Voltage Protective Device Automatic Reset Protection Switch (40A)
Asin: B08R8TPB25 | Model: LiebeWH8kgvn7ei9y-11 | PartNumber: LiebeWH8kgvn7ei9y-11 | Ean: 9134820151886
Adjustable: Both Overvoltage Protection And Overvoltage Recovery Values Are Adjustable, And The Overvoltage Protection Action Time Is Adjustable..
Good Performance: The Fault Recovery Delay Time And Power‑On Delay Time Of Adjustable Voltage Switch Are Adjustable For Better Performance..
Easy To Use: Both The Undervoltage Protection Value And The Undervoltage Recovery Value Are Adjustable, And The Undervoltage Protection Action Time Is Adjustable..
Multi Protection: Voltage Protection Switch Has Overvoltage Protection, Undervoltage Protection And Voltage Display (Voltage Measurement), Safer And Reliable To Use..
Features
- RESET MODE SELECTION: This current protector has the function of reset mode selection, fault query and factory reset, can bring you more convenience.
- MULTI PROTECTION: Voltage protection switch has overvoltage protection, undervoltage protection and voltage display (voltage measurement), safer and reliable to use.
- ADJUSTABLE: Both overvoltage protection and overvoltage recovery values are adjustable, and the overvoltage protection action time is adjustable.
- EASY TO USE: Both the undervoltage protection value and the undervoltage recovery value are adjustable, and the undervoltage protection action time is adjustable.
- GOOD PERFORMANCE: The fault recovery delay time and power on delay time of adjustable voltage switch are adjustable for better performance.
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Brand: LiebeWH | Manufacturer: LiebeWH
Dimensions: 2.36 x 3.19 x 1.42 inches
See On Amazon #16
Taidacent LM393 Voltage Comparator Relay Module 1 Channel / 1CH 5V/12V/24V Volt Comparison Board Stable Perfect (12V)
Asin: B08K4NTTK8 | Model: LM393 | PartNumber: LM393 | Ean: 0795749942826 | UPC: 795749942826
Input A Voltage Compared With The Reference Voltage (Reference Voltage Through Precision Multi-Turn Potentiometer Partial Pressure Get), The Input Voltage Is Less Than The Reference Voltage, The Relay Pulls, The Circuit Is Connected, At The Same Time The Work Of The Corresponding Channel Indicator Light.
Module Uses: Automotive Circuit Modification, Industrial Equipment, Experimental Testing, Circuit Application Testing.
Function 1: Input Voltage And Setting Voltage Between The Comparison, The Input Voltage Is Greater Than The Setting Voltage, The Circuit Is Turned On, While The Corresponding Channel Work Indicator Light; Function 2: Input Voltage And Setting Voltage Between The Comparison The Input Voltage Is Less Than The Set Voltage , The Circuit Is Turned On, While The Corresponding Channel Work Indicator Light.
Input A Voltage Compared With The Reference Voltage (Reference Voltage Through Precision Multi-Turn Potentiometer Partial Pressure Get),The Input Voltage Is Greater Than The Reference Voltage, The Relay Pull, The Circuit Connected, At The Same Time The Work Of The Corresponding Channel Indicator Light..
Features
- Channel difference is small, more accurate, 0.1V resolution accuracy. There are three versions of 5V / 12V / 24V optional.
- Input a voltage compared with the reference voltage (reference voltage through precision multi-turn potentiometer partial pressure get),the input voltage is greater than the reference voltage, the relay pull, the circuit connected, at the same time the work of the corresponding channel indicator light.
- Input a voltage compared with the reference voltage (reference voltage through precision multi-turn potentiometer partial pressure get), the input voltage is less than the reference voltage, the relay pulls, the circuit is connected, at the same time the work of the corresponding channel indicator light
- Function 1: Input voltage and setting voltage between the comparison, the Input voltage is greater than the setting voltage, the circuit is turned on, while the corresponding channel work indicator light; Function 2: Input voltage and setting voltage between the comparison The input voltage is less than the set voltage , the circuit is turned on, while the corresponding channel work indicator light
- Module uses: automotive circuit modification, industrial equipment, experimental testing, circuit application testing
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Brand: Taidacent | Manufacturer: Taidacent
See On Amazon #17
Onyehn 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for Arduino (Pack of 8)
Asin: B07PNB86R7 | Model: relay8 | PartNumber: relay8 | Ean: 8431246151102
On-Board Signal Output Indicator, Wire Terminal And Installing Holescompatible With 10A 250Vac And 10A 30Vdc Load.
Relay Module: Srd-Dc03v-Sl-C;Channel: 1 Channel;Working Voltage: Dc 3-3.3V;Compatible Load: 10A 250Vac / 10A 30Vdc;Single Socket Length: 7.5Mm.
Module Size: 70Mmx17mmx20mm / 2.76X0.70X0.79 Inch (L*W*H).
Fast Response Time Less Than 20Ms And Longlife Time Up To 100,000 Times Snap Action.
Features
- 1 channel 3V/3.3V power relay mdoule support photocoupler isolation control;Support dual power supply input ensure high anti-iinterference ability
- Fast response time less than 20ms and longlife time up to 100,000 times snap action
- On-board signal output indicator, wire terminal and installing holescompatible with 10A 250VAC and 10A 30VDC load
- Module Size: 70mmX17mmX20mm / 2.76X0.70X0.79 inch (L*W*H)
- Relay Module: SRD-DC03V-SL-C;Channel: 1 channel;Working Voltage: DC 3-3.3V;Compatible Load: 10A 250VAC / 10A 30VDC;Single Socket Length: 7.5mm
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Brand: Onyehn | Manufacturer: Onyehn
See On Amazon #18
Akozon Voltage Monitoring Relay DC 12V/24V/36V/48V Over-Voltage and Under-Voltage Protection Relay 35MM Guide Rail(DC12V)
Asin: B08LV18W8Q
Main Features---The Phase Monitoring Is Of 2 Sets Of Normally Open And Normally Closed Contacts, 2 Indicator Lights Indicate Various Working Conditions, No Additional Auxiliary Power Supply Is Required.
35Mm Guide Rail---With 35Mm Guide Rail And Standard Modular Structure, The Voltage Monitoring Relay Is Easy To Install, Easy To Operate.
Real-Time Monitoring---The Voltage Monitoring Relay Could Achieve Real-Time Monitoring Of Dc Overvoltage And Undervoltage Faults, And Over-Voltage, Under-Voltage Value, And Action Time Can Be Adjusted.
Product Name---Voltage Monitoring Relay; Protection Function: Over Voltage, Under Voltage; Rated Voltage: Dc 12V/24V/36V/48V; Overvoltage Regulation Range: 13-17V; Undervoltage Adjustment Range: 10-14V; Contact Capacity: 6A 250Vac (Resistivity).
Features
- TYPICAL APPLICATIONS---The voltage monitoring relay is typically applied in dc motor, battery,UPS power supply, dc switchgear, dc panel, industrial control system
- PRODUCT NAME---Voltage Monitoring Relay; Protection function: over voltage, under voltage; Rated voltage: DC 12V/24V/36V/48V; Overvoltage regulation range: 13-17v; Undervoltage adjustment range: 10-14v; Contact capacity: 6A 250VAC (resistivity)
- MAIN FEATURES---The phase monitoring is of 2 sets of normally open and normally closed contacts, 2 indicator lights indicate various working conditions, no additional auxiliary power supply is required
- REAL-TIME MONITORING---The voltage monitoring relay could achieve real-time monitoring of dc overvoltage and undervoltage faults, and over-voltage, under-voltage value, and action time can be adjusted
- 35MM GUIDE RAIL---With 35mm guide rail and standard modular structure, the voltage monitoring relay is easy to install, easy to operate
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Brand: Akozon
Dimensions: 0.00 x 0.00 x 0.00 Inches
See On Amazon #19
Electronics-Salon DIN Rail Mount 8 SPDT Power Relay Interface Module. (Operating Voltage: DC 24V)
Asin: B00M1MM4IQ | Ean: 6921407476172
Din Rail Mount Carrier: High Quality Taiwan Dinkle Fireproof Nylon Material Din Rail Mount Carrier (Not China Low Quality Carrier), Can Support Width 35Mm / 32Mm / 15Mm Rail. Fr-4 Fiber Glass Dual Layers Pcb..
Datasheet: Https://Images-Na.Ssl-Images-Amazon.Com/Images/I/91Ahtk3pt3l.Pdf.
High Quality Terminal Block: Pitch 5.0Mm/0.197", Wire Range 28Awg ~ 12Awg / 2.5Mm Square, Strip Length 7Mm. Screws - M2.5,Steel,Cr3+ Zn Plated. Pin Header And Cage - Brass..
Js1-24V-F Power Relays. Led Indicator For Each Relay Channel. Darlington Transistors Circuit Driving Relay, Improve The Reliability Of Action..
Features
- DIN Rail mount 8 Channel 10Amp SPDT Power Relay Module, DC 24V Version.
- JS1-24V-F Power Relays. LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action.
- DIN rail mount carrier: High quality Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail. FR-4 fiber glass dual layers PCB.
- High quality terminal block: Pitch 5.0mm/0.197, Wire range 28AWG ~ 12AWG / 2.5mm square, Strip length 7mm. Screws - M2.5,steel,Cr3+ Zn plated. Pin header and Cage - Brass.
- Datasheet: https://images-na.ssl-images-amazon.com/images/I/91AHtk3PT3L.pdf
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Brand: Electronics-Salon | Manufacturer: Electronics-Salon
See On Amazon #20
3 Phase 3 Wire Over Under Voltage Protector, Multi Protection Monitor Relay AC 208-480V, Adjustable Values, Modular Structure for Machine Tool, Control Cabinet, Compressor
Asin: B0CP67WV83 | Model: Pissenteqn386k2ygm | PartNumber: Pissenteqn386k2ygm
[Wide Range Of Applications] - Suitable For Various Applications Including Machine Tools, Cranes, Control Cabinets, Compressors, Cutting Machines, Elevators, Air Conditioners, Freezers, Water Pumps, Charging Piles, And Motors..
[Multiple Reset Methods] - Reset The Protector Automatically Or Manually Depending On The Situation..
[Ultra Wide Voltage Design] - The Protector Is Universal For Worldwide Use With A Wide Voltage Range Of 208-480Vac 50/60Hz..
[Adjustable Protection Values] - Easily Adjust The Overvoltage, Undervoltage, And Unbalance Values, As Well As The Action Time For Each Protection..
Features
- [Comprehensive protection] - Real-time monitoring and protection against overvoltage, undervoltage, voltage unbalance, phase error, phase loss, andline disconnection.
- [Adjustable protection values] - Easily adjust the overvoltage, undervoltage, and unbalance values, as well as the action time for each protection.
- [Wide range of applications] - Suitable for various applications including machine tools, cranes, control cabinets, compressors, cutting machines, elevators, air conditioners, freezers, water pumps, charging piles, and motors.
- [Ultra wide voltage design] - The protector is universal for worldwide use with a wide voltage range of 208-480VAC 50/60Hz.
- [Multiple reset methods] - Reset the protector automatically or manually depending on the situation.
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Brand: Pissente | Manufacturer: Pissente
See On Amazon #21
Jvr800-2 Voltage Stabilizer Adjustable Voltage Protector 3 Phase Under Over Voltage Protector Relay with Protective Functions for Phase Loss and Unbalanced Voltage
Asin: B0C7N7SC9Q | Model: Narootemy5kvza84r | PartNumber: Narootemy5kvza84r
【Practical Functions】The 3 Phase Under Over Voltage Protector Has Useful Functions Such As Power Delay, Output Test, Etc..
【3 In 1】Three-Phase Voltage Protector, Timer And Counter Integrated In One Relay..
【Easy To Use】The Voltage Protection Relay Does Not Require An External Power Supply..
【Lcd Display】Adjustable Voltage Protector With Lcd Screen Can Display Data For Easy Reading..
Features
- Multifunctional design Voltage stabilizer is equipped with protection functions for overvoltage, undervoltage, phase loss, phase sequence and unbalanced three-phase voltage.
- LCD display Adjustable voltage protector with LCD screen can display data for easy reading.
- Practical functions The 3 phase under over voltage protector has useful functions such as power delay, output test, etc.
- Easy to use The Voltage Protection Relay does not require an external power supply.
- 3 in 1 Three-phase voltage protector, timer and counter integrated in one relay.
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Brand: Naroote | Manufacturer: Naroote
See On Amazon #22
Multifunction Relay, 8-36V 8-Channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED
Asin: B07H9NHZQ1 | Model: Hilitandx0cm1uqahd | PartNumber: Hilitandx0cm1uqahd | Ean: 0798382991138 | UPC: 798382991138
【With Indicator Light】With Power Indicator Light And Relay Suction Indicator Light.
【New Energy Saving Function】Add Automatic Power Saving Function. Trigger Input Supports User Selection, High Level Or Low Level Pulse Triggering..
【High Precision】At Least 1 Second Timing Function Can Be Set, Accurate Timing, Error Less Than 1%. All Setting Options Can Be Automatically Saved, The Content Of Set Won't Lost When Power Off..
【Not Easy To Damage】Dc 8V-36V Wide Voltage Input, With The Function Of Power Anti-Reverse Connection, Will Not Damage The Module Due To Wrong Power Connection.
Features
- VERY POWERFUL FUNCTION This time delay relay with 8 channels of input and output control, each channel can be set to 20 kinds of functions to meet more application requirements
- NOT EASY TO DAMAGE DC 8v-36v wide voltage input, with the function of power anti-reverse connection, will not damage the module due to wrong power connection
- WITH INDICATOR LIGHT With power indicator light and relay suction indicator light
- HIGH PRECISION At least 1 second timing function can be set, accurate timing, error less than 1%. All setting options can be automatically saved, the content of set won't lost when power off.
- NEW ENERGY SAVING FUNCTION Add automatic power saving function. Trigger input supports user selection, high level or low level pulse triggering.
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Brand: Hilitand | Manufacturer: Hilitand
Dimensions: 2.36 x 3.15 x 2.76 inches | Weight: 0.33 Pounds
See On Amazon #23
3.3V Din Relay Ultra Thin PLC Relay MRI 3.3D48 Dc Photoelectrical Coupler Isolating PLC Relay Module Input 3.3Vdc Output 3 48Vdc
Asin: B0C6J97N92 | Model: Qiiluz2v4yu6rho | PartNumber: Qiiluz2v4yu6rho
3.3V Din Relay Plug-In Bridging Type.Convenient Din Rail Installation.
Operational Frequency Can Reach To 300Hz.No-Abrasion Switch Output :3-48V Dc/100Ma.
Photoelectrical Coupling Relay Internal Input/Output Polarity Protection Circuit.The Max Electrical Isolation Is 2.5Kvrms.
Ultra Thin Plc Relay The Width Is Only 6.2Mm,Which Saves 60% Of Installation Space.
Features
- 3.3V Din Relay Yellow Led Indication, Clear Port Mark
- Ultra Thin Plc Relay The Width Is Only 6.2Mm,Which Saves 60% Of Installation Space
- 3.3V Din Relay Plug-In Bridging Type.Convenient Din Rail Installation
- Photoelectrical Coupling Relay Internal Input/Output Polarity Protection Circuit.The Max Electrical Isolation Is 2.5Kvrms
- Operational Frequency Can Reach To 300Hz.No-Abrasion Switch Output :3-48V Dc/100Ma
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Brand: Qiilu | Manufacturer: Qiilu
See On Amazon #24
AEDIKO 6pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board
Asin: B09XTZSG53 | Model: AE19753 | PartNumber: AE19753 | Ean: 0701715525467 | UPC: 701715525467
High Level Trigger: The Relay Module Is Triggered By High Level Signal, Which Can Be Input From Microcontroller Io.
Wide Application: These 3V Relay Power Switch Module Works Well With Arm /Pic /Avr /Mcu/Cnc Machine/ Ps4 Etc..
Jumper Caps: By Removing The Jumper Caps On The Pins,You Can Select Whether The Relay And The Signal Share The Same Power Supply Or Not,But We Are Recommended To Share The Same Power Supply.
Optocoupler Isolator: 3V/3.3V Power Relay Module Supports Photocoupler Isolation Control.
Features
- 3V Relay Module: Working Voltage: DC 3-3.3V; Working Current: 65mA; Trigger Current: 3mA;Load: 10A 250VAC / 10A 30VDC;Load Current: 10A max
- Optocoupler Isolator: 3V/3.3V Power Relay Module Supports Photocoupler Isolation Control
- High Level Trigger: The Relay Module is Triggered by High Level Signal, Which Can Be Input From Microcontroller IO
- Jumper Caps: By Removing the Jumper Caps on the Pins,You can Select Whether the Relay and the Signal Share the Same Power Supply or Not,But We Are Recommended to Share the Same Power Supply
- Wide Application: These 3V Relay Power Switch Module Works Well With ARM /PIC /AVR /MCU/CNC Machine/ PS4 etc.
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Brand: AEDIKO | Manufacturer: AEDIKO
See On Amazon #25
Symcom 460 Three Phase Voltage Monitor Adj.VUB,TD,RD/DIN rail
Asin: B00GJ3Y756 | Model: MS460 | PartNumber: MS460 | Ean: 0006075000006 | UPC: 006075000006
Diagnostic Leds Indicate Trip Status And Provide Simple Troubleshooting..
Single-Phase Conditions Are Detected Regardless Of Regenerated Voltages..
Microcontroller-Based Circuitry Provides Better Accuracy And Higher Reliability Than Analog Designs..
Four Adjustment Pots Provide Versatility For A Variety Of Applications..
Features
- The 460's universal range from 190-480VAC, 50/60 Hz provides the versatility needed to handle global applications.
- Four adjustment pots provide versatility for a variety of applications.
- Diagnostic LEDs indicate trip status and provide simple troubleshooting.
- Microcontroller-based circuitry provides better accuracy and higher reliability than analog designs.
- Single-phase conditions are detected regardless of regenerated voltages.
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Brand: Symcom | Manufacturer: Symcom / Littelfuse
Dimensions: 3.50 x 2.35 x 2.08 inches | Weight: 0.00 pounds
See On Amazon #26
Omron H3CR-F8 AC100~240V Timer, 8-pin, AC100~240V/DC100-125
Asin: B005S3S2KO | Model: H3CR-F8 AC100-240 | PartNumber: H3CR-F8 AC100-240 | Ean: 4536853498191
Timing Scales From 0.05 Seconds Up To 300 Hours (Except - H And - G)..
Transistor 100Ma To 30Vc -.
Dpdt 5 250Vc.
High/Low Voltage Models (Except – H And – G)..
Features
- Front panel 48 x 48 mm.
- High/low voltage models (except H and g).
- Timing scales from 0.05 seconds up to 300 hours (except - H and - g).
- DPDT 5 250VC
- Transistor 100mA to 30VC -
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Brand: Omron | Manufacturer: Omron
Weight: 0.22 Pounds
See On Amazon #27
HiLetgo 12V 6 Channel Relay Module Self-Lock Interlock Relay High Low Trigger Relay Module 3 in One
Asin: B00LX3V25U | Model: 3-01-0393 | PartNumber: 3-01-0393 | Ean: 0702082656358 | UPC: 702082656358
Maximum Power Consumption : 300Ma.
High & Low Trigger.
Supply Voltage : 12V (Dc).
Features
- HiLetgo 12V 6 Channel Self-Lock Interlock Relay Module
- Supply voltage : 12V (DC)
- Maximum power consumption : 300mA
- High & Low Trigger
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Brand: HiLetgo | Manufacturer: HiLetgo
See On Amazon #28
AD584KH High Precision 4 Channel 2.5V / 7.5V / 5V / 10V Voltage Reference Module with Case
Asin: B0CZ6WJ9XQ | Model: NOENNULLu8oeztih9g | PartNumber: NOENNULLu8oeztih9g
Transparent Case Can Protect Module From Damage And Provide Clear View..
Easy To Carry, Can Be Charging By Dc 5V, With Charging Indicator..
Built-In Ad584kh, Highest Accuracy And Stability..
The Mcu Switch 4-Channel Reference Voltage Output With Led Indicators..
Features
- Single-button operation switch reference voltage.
- The MCU switch 4-channel reference voltage output with LED indicators.
- Transparent case can protect module from damage and provide clear view.
- Built-in AD584kh, highest accuracy and stability.
- Easy to carry, can be charging by DC 5V, with charging indicator.
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Brand: NOENNULL | Manufacturer: NOENNULL
See On Amazon #29
DPA51CM44 3 Phase Monitoring Relay, Sequence Protector Relay Voltage Protective Over and Under Protection Anti Interference Efficient for Loss Motors Elevators Power Systems
Asin: B0CZ78NJRL | Model: Tiiyeeky81eqbrps | PartNumber: Tiiyeeky81eqbrps
Work Well: Phase Sequence Protector Relay Features With Strong Anti Interference Performance, So It Helps Maintain A Constant And Efficient Work Of The Motor, Three Phase Relay Will Provide An Excellent Performance During The Working Process.
Led Indication: This Over Voltage And Under Voltage Protection Relay Features An Led Indication For Easier Installation And Trouble Shooting, Which Permits A Maximum Degree Of Protection To Be Achieved For Machines, Plants And Systems, And Avoid Far More Significant Subsequent Damage, 3 Phase Voltage Monitoring Relay Very Convenient And Useful.
3 Phase Design: This 3 Phase Sequence Relay Protector Is Designed With 3 Phase Monitoring To Provide A Correct Phase Sequence, Without Neutral, Phase Loss And Incorrect Phase Sequence, So Voltage Protective Relay Can Detect When All Phases Are Present And Have The Correct Sequence.
Multi Functioanl: This Insulation Monitoring Relay Has A Widely Use On The Electric Filed, And It Can Be Applied To Motor Protection, Elevator, Air Conditioning System, Power System And Other Industries, 3 Phase Voltage Monitoring Sequence Relay Very Helpful Tool During Daily Life.
Features
- Small Size: This voltage monitoring relay has a smaller compact size for easier and convenient use and install, and the size of the Monitoring Relay is 8.1 x 6.7 x 1.75 cm/3.1 x 2.6 x 0.6 inch, you can install current monitoring relays on any places around the room, saving a lot of place
- Multi Functioanl: This insulation monitoring relay has a widely use on the electric filed, and it can be applied to motor protection, elevator, air conditioning system, power system and other industries, 3 phase voltage monitoring sequence relay very helpful tool during daily life
- Work Well: phase sequence protector relay features with strong anti interference performance, so it helps maintain a constant and efficient work of the motor, three phase relay will provide an excellent performance during the working process
- 3 Phase Design: This 3 phase sequence relay protector is designed with 3 Phase monitoring to provide a correct phase sequence, without neutral, phase Loss and Incorrect phase sequence, so voltage protective relay can detect when all phases are present and have the correct sequence
- LED Indication: This over voltage and under voltage protection relay features an LED indication for easier installation and trouble shooting, which permits a maximum degree of protection to be achieved for machines, plants and systems, and avoid far more significant subsequent damage, 3 phase voltage monitoring relay very convenient and useful
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Brand: Tiiyee | Manufacturer: Tiiyee
See On Amazon #30
DC 12V/24V/36V/48V Lockout Protection Relay with Over and Under Voltage Protection Control (DC24V)
Asin: B0CZ77MGYB | Model: JTLBfedpq5gvxw-02 | PartNumber: JTLBfedpq5gvxw-02
No Additional Auxiliary Power Supply Is Required.
2 Sets Of Normally Open And Normally Closed Contacts.
Both Over - Voltage And Under - Voltage Value Can Be Adjusted.
Real-Time Monitoring Of Dc Overvoltage And Undervoltage Faults.
Features
- Standard modular structure, guide rail type installation
- Real-time monitoring of dc overvoltage and undervoltage faults
- No additional auxiliary power supply is required
- Both over - voltage and under - voltage value can be adjusted
- 2 sets of normally open and normally closed contacts
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Brand: JTLB | Manufacturer: JTLB
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