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Best Current Monitoring Relays - Buying Guide

Last Updated: 03/24/2019

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Bestselling Current Monitoring Relays on Amazon

  1. Electronics-Salon Panel Mount +/-100Amp AC/DC Current Sensor Module Board, based on ACS758
  2. High Power 100A 1600V Three Phase Diode Bridge Rectifier MDS100A Black Three-Phase Diode Bridge Rectifier
  3. 3HP PUMP START RELAY @ 110V/220V 24V COIL
  4. Current Sensing Switch,Normally Open Current Sensing Switch Adjustable AC 0.2A -30A (SZC23-NO-AL-CH ...
  5. CR Magnetics CR2RL-201 Current Transformer, Commercial Class, 5 Amp, 200:5 Secondary Ratio, UL Recog...
  6. Siemens 3RH11 31-1AK60 Control Relay, Size S00, 35mm Standard Mounting Rail, AC Operation, Screw Con...
  7. CR Magnetics CR4395-EH-120-110-X-CD-ELR-I Current Sensing Relay with Internal Transformer, 120 VAC, ...
  8. Siemens 3RH11 22-1AK60 Control Relay, Size S00, 35mm Standard Mounting Rail, AC Operation, Screw Con...
  9. Carol 01812.33.01 SOOW Portable Cord, Carolprene Jacketed Type SOOW, 90 Degree C, 600V Non-UL Portab...
  10. Eaton Moeller Control Relay EASY820-DC-RCX

  #1

Electronics-Salon Panel Mount +/-100Amp AC/DC Current Sensor Module Board, based on ACS758

 Ean: 6921407352162   |    PartNumber: MD-D1085/100A-1   |   Asin: B016M5UCFO

Current Sensor Module Board, +/-100 Amp, Panel Mount Version.

Features
The item of current sensor module provides economical and precise solutions for AC or DC current sensing. Typical applications include motor control, load detection and management, power supply and DC-to-DC converter control, inverter control, and overcurrent fault detection.
Output voltage proportional to AC or DC currents.
FR-4 fiber glass PCB, dual copper layers.
100% new, never used.

Electrical Parameters:
Load Maximum Current: 100A.
Load Frequency Bandwidth: DC ~ 120 kHz.
Isolation Voltage: 4800V AC.
Sensitivity: 20mV/A.
Operating Voltage: Regulated 5VDC, or 8 ~ 35VDC.
Operating Current: 20mA(max).

Specification:
http://audiowind.oss-cn-hongkong.aliyuncs.com/new-pdf/D-1085.pdf


Features

  • Current Sensor Module Board, +/-100 Amp, Panel Mount Version.
  • FR-4 fiber glass PCB, dual copper layers.
  • Operating Voltage: Regulated 5VDC, or 8 ~ 35VDC.
  • Operating Current: 20mA(max).
  • 100% new, never used.
  • See more on Amazon...

Brand: CZH-LABS   |   Manufacturer: Electronics-Salon

Package Dimensions: 1.3 x 2.2 x 3.7 inches (3.3 x 5.6 x 9.4 cm)

Amazon Price: $20.99 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 24 hours
List Price: $20.99

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  #2

High Power 100A 1600V Three Phase Diode Bridge Rectifier MDS100A Black Three-Phase Diode Bridge Rectifier

 Ean: 0798382577837   |    PartNumber: Hilitandxbc5shfk4u   |   Asin: B07GZR8JC7

Features:
High quality bridge rectifiers used for conversion of an alternating current input into a direct current output.
Well welded structure with good temperature and power cycle ability ensures a more stable performance. Designed for three phase rectification, maximum average forward rectified current is 100A.
It has a large over-current capacity, good heat dissipation and low voltage drop. This high power bridge rectifier can be widely used for power supply.

Specifications:
Material: Metal, plastic
Model: MDS100A
Maximum Average Forward Rectified Current: 100A
Peak Voltage: 1600V
Phase: 3-phase
Pin: 5
Size: 8*4*3cm/3.1*1.6*1.2in
Hole Diameter: 0.6cm/0.2in
Quantity: 1
Weight: 132g(approx.)

Package Includes:
1 x Bridge Rectifier

Features

  • HIGH QUALITY High quality bridge rectifiers used for conversion of an alternating current input into a direct current output
  • STABLE PERFORMANCE Well welded structure with good temperature and power cycle ability ensures a more stable performance
  • DESIGNED FOR Designed for three phase rectification, maximum average forward rectified current is 100A
  • ADVANTAGE It has a large over-current capacity, good heat dissipation and low voltage drop
  • WIDELY USED This high power bridge rectifier can be widely used for power supply
  • See more on Amazon...

Brand: Hilitand   |   Manufacturer: Hilitand

Package Dimensions: 2.48 x 3.9 x 4.33 inches (6.3 x 9.9 x 11.0 cm)

Amazon Price: $13.99 | as of 03/24/2019(7:49am pst)
Availibility:
List Price: $13.99

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  #3

3HP PUMP START RELAY @ 110V/220V 24V COIL

 Ean: 0671923100865   |    PartNumber: FBA_1522   |   Asin: B00E0Q7O2C

IRRIGATION PIPE & TUBING

Features

Brand: K-Rain   |   Manufacturer: K-Rain

Item Dimensions: 4.5 x 5.25 x 7.25 inches (11.4 x 13.3 x 18.4 cm)   |   Package Dimensions: 4.7 x 5.3 x 7.3 inches (11.9 x 13.5 x 18.5 cm)

Amazon Price: $57.74 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 24 hours
List Price: $57.74

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  #4

Current Sensing Switch,Normally Open Current Sensing Switch Adjustable AC 0.2A -30A (SZC23-NO-AL-CH Model)

 Ean: 0719527953316   |    PartNumber: Hilitand8k3b14u2na   |   Asin: B07N1P6TWL

SZC23 series AC current sensing switch is designed and manufactured to solve the AC current monitoring. It uses the principle of mutual inductance to sense the AC straight-through current, isolate the AC current, and output a normally open or normally closed switching signal to directly control various automation industrial equipment, such as flash, buzzer, relay, single-chip or other power load equipment.


Features:
1. Straight-through structure design, isolation withstand voltage up to 2000V.
2. Hysteresis is less than 1% and can be used under strong magnetic conditions.
3. The outer casing is made of self-extinguishing material ABS.
4. Suitable for AC current measurement and monitoring, AC motor overload protection, electronic switch of automatic control system and so on.


Specification:
Model: SZC23-NO-AL-CH
Power supply: Not required
Rated load: 0.5A@240V AC/DC
Input current: 0.2-30A AC
Switch on minimum: 0.5 0.2A
Maximum overload: 100%
Leakage current: 0.1A
Accuracy: 1%
Hysteresis: 1%
Response time: 200ms
Repeatability: 100%
Working temperature: -20~60
Waterproof: IP30
Dimensions: 65*25*47mm / 2.56*0.98*1.85in
Hole diameter: 10mm / 0.4in
Package weight: Approx. 56g/2.0oz


Package list:
1 * Current Sensing Switch


Note:
1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item.
2. Please allow slight error due to manual measurement. Thanks for your understanding.

Features

  • Self-powered, no external power supply required.
  • Action current 0.2-30A AC, adjustable with a potentiometer.
  • LED indicator can conveniently and intuitively indicate the working status of the switch.
  • High-power MOS tube contactless electronic switch.
  • The switch has no limit on the number of opening and closing, and the reaction speed reaches the ms level.
  • See more on Amazon...

Brand: Hilitand   |   Manufacturer: Hilitand

Item Dimensions: 0.98 x 1.97 x 2.56 inches (2.5 x 5.0 x 6.5 cm)   |   Package Dimensions: 0.79 x 0.79 x 0.79 inches (2.0 x 2.0 x 2.0 cm)

Amazon Price: $12.99 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $12.99

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  #5

CR Magnetics CR2RL-201 Current Transformer, Commercial Class, 5 Amp, 200:5 Secondary Ratio, UL Recognized, 1% Accuracy at 60 Hz, 1.13" Window Diameter

Model: CR2RL-201   |    Mpn: CR2RL-201   |    PartNumber: CR2RL-201   |   Asin: B005CWHSA6

Current Transformer.

Features

  • 5 Amp Secondary Standard / Custom Outputs Available
  • Frequency Range 50 - 400 Hz
  • 24 UL 1015 #16 AWG 24 Wire Leads
  • Core Secured with Epoxy Resin
  • Made in the USA
  • See more on Amazon...

Brand: CR Magnetics   |   Manufacturer: CR Magnetics Inc

Package Dimensions: 2.1 x 3.1 x 3.3 inches (5.3 x 7.9 x 8.4 cm)

First Available: 2017-11-25

Amazon Price: $15.94 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $15.94

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  #6

Siemens 3RH11 31-1AK60 Control Relay, Size S00, 35mm Standard Mounting Rail, AC Operation, Screw Connection, 31 E Identification Number, 3 NO + 1 NC Contacts, 120 V 60 Hz Control Supply Voltage

Model: 3RH11311AK60   |    Mpn: 3RH11311AK60   |    Ean: 0754554416304   |    PartNumber: 3RH11311AK60   |   Asin: B004YYAA08

The Siemens 3RH1131 control relays can be expanded by up to four contacts by the addition of mountable auxiliary switch blocks. The auxiliary switch block can easily be snapped onto the front of the relays. The auxiliary switch block has a centrally positioned release lever for disassembly.

Features

  • 4 pole 10 AMP control relay with 3 N.O. and 1 N.C. contacts and a 120vAC coil
  • Up to 4 additional poles can be added with top mounted auxiliaries
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Brand: Siemens   |   Manufacturer: Siemens

Item Dimensions: 2.6 x 2.2 x 2.2 inches (6.6 x 5.6 x 5.6 cm)   |   Package Dimensions: 2 x 2.5 x 3.1 inches (5.1 x 6.4 x 7.9 cm)

First Available: 2017-05-15

Amazon Price: $58.65 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 24 hours
List Price: $58.65 | Used Price: $12.50

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  #7

CR Magnetics CR4395-EH-120-110-X-CD-ELR-I Current Sensing Relay with Internal Transformer, 120 VAC, Energized on High Trip, 1 - 10 AAC Trip Range

 PartNumber: CR4395-EH-120-110-X-CD-ELR-I   |   Asin: B005CWPPPQ

Features

  • Current sensing relay for monitoring electrical current
  • Current carrying wire is routed through an aperture
  • Electrical isolation between circuits (SPDT)
  • Variable trip point range with adjustable timer for stability
  • UL recognized for safety and RoHS compliant for hazardous substances
  • See more on Amazon...

Brand: CR Magnetics   |   Manufacturer: CR Magnetics

Package Dimensions: 2.6 x 2.6 x 4 inches (6.6 x 6.6 x 10.2 cm)

Amazon Price: $88.79 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $88.79

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  #8

Siemens 3RH11 22-1AK60 Control Relay, Size S00, 35mm Standard Mounting Rail, AC Operation, Screw Connection, 22 E Identification Number, 2 NO + 2 NC Contacts, 120 V 60 Hz Control Supply Voltage

Model: 3RH11221AK60   |    Mpn: 3RH11221AK60   |    Ean: 0754554416311   |    PartNumber: 3RH11221AK60   |   Asin: B004YYAQNY

Mfr Brand Name: SIEMENS / Catalog No.: 3RH1122-1AK60 / Product Name: SIEMENS 3RH1122-1AK60 N 10A 600V 4P Coil120 VAC NEW / Amps: 10 / Volts: 600 / Poles: 4 / Coil: 120 VAC / Din-Rail Mt.: Yes / Normally Open: 2 / Normally Closed: 2 / Electrically Held: Yes

Features

  • 4 pole 10 AMP control relay with 2 N.O. and 2 N.C. contacts and a 120vAC coil
  • Up to 4 additional poles can be added with top mounted auxiliaries
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Brand: Siemens   |   Manufacturer: Siemens

Item Dimensions: 2.6 x 2.2 x 2.2 inches (6.6 x 5.6 x 5.6 cm)   |   Package Dimensions: 2 x 2.6 x 3.2 inches (5.1 x 6.6 x 8.1 cm)

First Available: 2017-03-12

Amazon Price: $58.65 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 24 hours
List Price: $58.65 | Used Price: $26.44

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  #9

Carol 01812.33.01 SOOW Portable Cord, Carolprene Jacketed Type SOOW, 90 Degree C, 600V Non-UL Portable Cord, 8/3 SOOW, 600V, 100' Reel, Black

Model: 01812.33.01   |    Mpn: 01812.33.01   |    Ean: 0079407111893   |    PartNumber: 01812.33.01   |   Asin: B01MZXZJ4V

Carolprene jacketed Type SOOW 90 c 600V non-UL portable cord, 8/3 SOOW 600v-black-100' reel. Excellent resistance to oil and moisture. Good tensile strength, elongation and aging characteristics. Excellent abrasion resistance.

Features

  • Excellent resistance to oil and moisture
  • Good tensile strength, elongation and aging characteristics
  • Excellent abrasion resistance
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Brand: Carol   |   Manufacturer: General Cable

Package Dimensions: 40 x 42 x 48 inches (101.6 x 106.7 x 121.9 cm)

Amazon Price: $153.00 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $153.00

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  #10

AD22B04 12V 4 Channel DTMF Tone Signal Decoder Relay Phone Remote Control PLC

 Ean: 0663862852233   |    PartNumber: Walfront3t8fogp6w7   |   Asin: B079Z6KWFD

Specifications:

Size: as the picture

Weight: 72g

Maximum load: 10A/250VAC ,10A/125VAC,10A /30VDC, 10A /28VDC ,10A /12VDC



Package Included:

1 x 4 Channel DTMF Tone Signal Decoder Relay

1 x cable

Features

  • Product model: AD22B04
  • Working voltage DC 12V, with reverse polarity protection
  • Operating Current: Standby 11-13 MA, 1 relay
  • Eight modes of operation: Non-locking (Momentary ), self-locking (Toggle), inter-locking(Latch), 5/20/60/120/250-second delay
  • The default control command is 1/2/3/4
  • See more on Amazon...

Brand: Walfront   |   Manufacturer: Walfront

Item Dimensions: 0.59 x 3.15 x 3.94 inches (1.5 x 8.0 x 10.0 cm)   |   Package Dimensions: 0.79 x 2.2 x 4.09 inches (2.0 x 5.6 x 10.4 cm)

Amazon Price: $24.69 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 24 hours
List Price: $24.69

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  #11

Single-Phase Diode Bridge Rectifier 400A 1600V High Power 4 Terminals Current Conversion Module

 Ean: 0763741188849   |    PartNumber: Hilitand826ofny357   |   Asin: B07DKRQ7RF

Features:

High quality bridge rectifiers used for conversion of an alternating current input into a direct current output.

Well welded structure with good temperature and power cycle ability ensures a more stable performance. Designed for single phase rectification, output DC current is 400A. It has a large over-current capacity, good heat dissipation and low voltage drop. This high power bridge rectifier can be widely used for power supply.

Specifications:

Output Current: 400A

Three Phase Input Positive Average Current: 135A

Repetitive Peak Reverse Voltage(VRRM): 1600V

Repetitive Peak Inverse Current(IRRM): 10mA

Isolation Voltage(Viso): 2500VAC

VTM: 1.5V

ITM: 400A

Phase: Single Phase

Terminals: 4

Max. Junction Temperature: 150

Size: 110 x 68 x 34mm / 4.33 x 2.67 x 1.33"

Quantity: 1



Package Includes:

1 x Bridge Rectifier

Features

  • HIGH QUALITY: High quality bridge rectifiers used for conversion of an alternating current input into a direct current output.
  • WELL WELDED: Well welded structure with good temperature and power cycle ability ensures a more stable performance.
  • GREAT PERFORMANCE: It has a large over-current capacity, good heat dissipation and low voltage drop.
  • FOR SINGLE PHRASE RECTIFICATION: Designed for single phase rectification, output DC current is 400A.
  • WIDELY USED: This high power bridge rectifier can be widely used for power supply, widely used.
  • See more on Amazon...

Brand: Hilitand   |   Manufacturer: Hilitand

Package Dimensions: 1.81 x 4.72 x 6.3 inches (4.6 x 12.0 x 16.0 cm)

Amazon Price: $35.99 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $35.99

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  #12

Zerone 8 Channels Solid State Relay Module DC-AC Low Level Trigger with Fuse

 Ean: 0724942422880   |    PartNumber: Zerone   |   Asin: B07PPF22W7

Features:
1.100% brand new and high quality.
2.Small body and stable performance.
3.There is a 8 channels solid state relay module.
4.8 channels make it more convenient to connect control line.
5. The relay is closed when the voltage between the trigger terminal and the negative pole of the power supply is 0V or close to 0V.
6. Wisely used.

Specification:
Condition: 100% Brand New
Model: 8 Channel
Rated Current: 2A
Rated Voltage: 5V
Weight: Approx. 71g / 2.5oz

Package List: 1 * 8 Channel Solid State Relay Module

Features

  • 100% brand new and high quality.
  • Small body and stable performance
  • There is a 8 channels solid state relay module.
  • 8 channels make it more convenient to connect control line.
  • The relay is closed when the voltage between the trigger terminal and the negative pole of the power supply is 0V or close to 0V.
  • See more on Amazon...

Brand: Zerone   |   Manufacturer: Zerone

Amazon Price: $11.09 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $11.09

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  #13

CR Magnetics CR2RL-101 Current Transformer, Commercial Class, 5 Amp, 100:5 Secondary Ratio, UL Recognized, 1% Accuracy at 60 Hz, 1.13" Window Diameter

Model: CR2RL-101   |    Mpn: CR2RL-101   |    PartNumber: CR2RL-101   |   Asin: B005C5TJGY

Current Transformer.

Features

  • 5 Amp Secondary Standard / Custom Outputs Available
  • Frequency Range 50 - 400 Hz
  • 24 UL 1015 #16 AWG 24 Wire Leads
  • Core Secured with Epoxy Resin
  • Made in the USA
  • See more on Amazon...

Brand: CR Magnetics   |   Manufacturer: CR Magnetics Inc

Package Dimensions: 2.5 x 3 x 4 inches (6.4 x 7.6 x 10.2 cm)

First Available: 2017-03-12

Amazon Price: $15.94 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $15.94

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  #14

Black Single-Phase Diode Bridge Rectifier Module 150A Amp High Power 1600V 4 Terminals

 Ean: 0763741189082   |    PartNumber: Hilitandksadfwi6h7   |   Asin: B07DKZ2S1M

Features:

High quality bridge rectifiers used for conversion of an alternating current input into a direct current output.

Well welded structure with good temperature and power cycle ability ensures a more stable performance. Designed for single phase rectification, output DC current is 150A. It has a large over-current capacity, good heat dissipation and low voltage drop. This high power bridge rectifier can be widely used for power supply.

Specifications:

Output Current: 150A

Three Phase Input Positive Average Current: 50A



Repetitive Peak Reverse Voltage(VRRM): 1600V

Repetitive Peak Inverse Current(IRRM): 10mA

Isolation Voltage(Viso): 2500VAC

VTM: 1.5V

ITM: 150A

Phase: Single Phase

Terminals: 4

Max. Junction Temperature: 150

Size: 78 x 40 x 35mm / 3.07 x 1.57 x 1.37"

Quantity: 1



Package Includes:

1 x Bridge Rectifier

Features

  • GREAT PERFORMANCE: It has a large over-current capacity, good heat dissipation and low voltage drop.
  • WELL WELDED: Well welded structure with good temperature and power cycle ability ensures a more stable performance.
  • FOR SINGLE PHRASE RECTIFICATION: Designed for single phase rectification, output DC current is 150A.
  • WIDELY USED: This high power bridge rectifier can be widely used for power supply, widely used.
  • See more on Amazon...

Brand: Hilitand   |   Manufacturer: Hilitand

Package Dimensions: 1.5 x 1.89 x 3.31 inches (3.8 x 4.8 x 8.4 cm)

Amazon Price: $14.49 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $14.49

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  #15

12V 8-Channel Bluetooth Relay Module Remote Control Switch Board for Android

 Ean: 0663862855531   |    PartNumber: Walfrontz6gx4har1c   |   Asin: B079Z581NH

Specifications:

Operating Voltage: DC 12V

Size: 9.5*6.8*1.8cm/3.7*2.6*0.7in



Glossary:

NO: Relay normally open contact

COM: Relay common contact

NC: Relay normally closed contact

Momentary : Mobile terminal input "A0" (B0 / C0 / D0 is the same), the relay is "open",and after delay of 1 second the relay is "Close".

Self-locking : Mobile terminal input "A1", the relay is "Open", input "A1", the relay is "Close", and so on

Interlock : Mobile terminal input "A2", relay 1 is "Open", the other relay is "Close"; input "B2", relay 2 is "Open", the other relay is "Close", and so on.

Open : NO connection COM, NC disconnect COM

Close : NO disconnect COM, NC connection COM

CommandS(Format: character, case-insensitive)

CommandS

Package Includes:

1 x Relay Module

Features

  • This is a great DC12V Bluetooth remote control relay switch normally used for smart home lighting, fan or motor
  • Standby current (all relays closed) 15MA, 1 relay open 41MA, 2 relays open 69MA, 3 relays open 96MA, 4 relays open 123MA,5 relays open 150MA,6 relays open 177MA, 7 relays open 203MA,8 relays open 229MA
  • Send commands via Android Bluetooth APP control relay turned on and off (we provide Bluetooth APP, you can also use your own APP to control relays, sending commands to control)
  • Momentary,Self-locking, Interlock, open, close 5 Commands
  • You can modify the Bluetooth name and PIN(Access Password)through AT commands
  • See more on Amazon...

Brand: Walfront   |   Manufacturer: Walfront

Amazon Price: $32.69 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $32.69

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  #16

CR Magnetics CR4395-EH-24D-110-X-CD-ELR-I Current Sensing Relay with Internal Transformer, 24D VAC, Energized on High Trip, 1 - 10 AAC Trip Range

 PartNumber: CR4395-EH-24D-110-X-CD-ELR-I   |   Asin: B005CWRYJ6

This CR Magnetics current sensing relay has an internal transformer, requires a supply voltage of 24VDC, and is used for monitoring electrical current in power supply applications. This current sensing relay has a window for routing the current-carrying wire and a calibrated dial for setting the trip point. An adjustable delay-on timer provides stability. When current levels rise above the adjusted set point, the relay is tripped and starts the timer. Once the timer cycles, the relay is energized and turns the output to full on. It has an internal transformer for scaling the current up or down and a voltage reference circuit that provides a repeatable trip point. This current sensing relay has an LED indicator that alerts the user when the relay is tripped and is suitable for monitoring electric heater elements, sensing motor over/under loads, detecting lamp burn-out and indicating phase-loss.

Specifications Contact form 1 Form C (SPDT) Contact material Silver-cadmium oxide Supply voltage 24VDC Power-on delay 100 ms. maximum Input supply power 80 mA normal; 100 mA maximum Rated output 20 amps maximum Maximum sensed current Continuous 200% full scale Hysteresis 5% maximum Mechanical life 10 million operations at normal rated load Electrical life 100,000 operations at normal rated load Initial contact resistance 50 milliohms maximum at 500 mA, 12VDC Frequency (at 60 Hz) 50 to 400 Hz Operating temperature -30 to +60 degrees C Storage temperature -55 to +85 degrees C Terminals 3 1/4" male QC Weight 0.05 lb. Standards met UL (Underwriter's Laboratories)
RoHS (Restriction on Hazardous Substances)
Relay switches (also called an electrical relay or an electrical relay switch) use a small amount of power to control a larger source of power connected to electrical devices such as car motors, computers, and lighting installations. A basic relay switch has a control circuit with an electromagnetic coil and a load circuit with contacts and a lever. When current flows into the relay switch, it moves through the coil and a magnetic field is created, which causes the lever in the load circuit to move between contacts, either turning the device on or off. In a normally open (NO) relay switch, when power is supplied to the relay, the load circuit is closed and the power source connected to the relay is turned on. In a normally closed (NC) relay switch, when power is supplied to the relay, the load circuit is open and the power source connected to the relay is turned off. In other types of relay switches, non-moving parts such as transistors or semiconductors can be used as the control circuit to operate the switching mechanism. Relay switches can be controlled with an external switch, such as a light switch, or they can be connected to an automatically switched power source, such as a car ignition. One relay can operate multiple switches, and multiple relays can be operated with a single switch, with each relay operating independently from the other relays in the system.

CR Magnetics manufactures electrical sensors, indicators, and displays. The company, founded in 2004, is headquartered in Saint Louis, MO.

Features

  • Current sensing relay for monitoring electrical current
  • Current carrying wire is routed through an aperture
  • Electrical isolation between circuits (SPDT)
  • Variable trip point range with adjustable timer for stability
  • UL recognized for safety and RoHS compliant for hazardous substances
  • See more on Amazon...

Brand: CR Magnetics   |   Manufacturer: CR Magnetics

Package Dimensions: 2.4 x 2.6 x 4.3 inches (6.1 x 6.6 x 10.9 cm)

Amazon Price: $84.56 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 1-2 business days
List Price: $88.79

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  #17

Carol 01380.35T.01 SJOOW Portable Cord, Carolprene Jacketed Type SJOOW, 90 Degree C, 300V UL/CSA Portable Cord, 12/3 SJOOW, 300V, 250' Reel, Black

Model: 01380.35T.01   |    Mpn: 01380.35T.01   |    Ean: 0079407412105   |    PartNumber: 01380.35T.01   |   Asin: B01N46MPT2

Carolprene jacketed Type SJOOW 90 c 300 Volt UL/CSA portable able cord, 12/3 SJOOW 300v-black-250 reel. Excellent resistance to oil and moisture. Good tensile strength, elongation and aging characteristics. Excellent abrasion resistance.

Features

  • Excellent resistance to oil and moisture
  • Good tensile strength, elongation and aging characteristics
  • Excellent abrasion resistance
  • See more on Amazon...

Brand: Carol   |   Manufacturer: General Cable

Package Dimensions: 42 x 46 x 48 inches (106.7 x 116.8 x 121.9 cm)

First Available: 2017-05-15

Amazon Price: $280.46 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 24 hours
List Price: $289.65

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  #18

Carol 09606.35.01 Portable Cord, Super Vu-Tron Multi-Conductor Type SOOW, 90 Degree C, 600V UL/CSA Portable Cord, 16/6 SOOW, 600V, 250' Reel, Black

Model: 09606.35.01   |    Mpn: 09606.35.01   |    Ean: 0079407160693   |    PartNumber: 09606.35.01   |   Asin: B007ICE07C

Super vu-tron multi-conductor Type SOOW 90 c 600V UL/CSA portable cord, 16/6 SOOW 600v-black-250 reel. It has extra-flex stranding . Resists oils and solvents . UL listed and CSA certified for indoor and outdoor use.

Features

  • This product has extra-flex stranding
  • Resists oils and solvents
  • UL Listed and CSA Certified for indoor and outdoor use
  • See more on Amazon...

Brand: Carol   |   Manufacturer: General Cable

Package Dimensions: 13.1 x 13.2 x 13.2 inches (33.3 x 33.5 x 33.5 cm)

Amazon Price: $143.09 | as of 03/24/2019(7:49am pst)
Availibility: Usually ships in 24 hours
List Price: $143.16

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