Top 51 Industrial Scientific Electrical Relays
Last Updated: Sep 7, 2024 • 21,631 reviews analyzed
Our most popular Industrial Scientific Electrical Relays products based on sales, online popularity and other expert reviews. Updated frequently.
![HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger](https://images-na.ssl-images-amazon.com/images/I/61Ynyg4Sd8L._AC_US320_.jpg)
HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger
![Emerson 90 380 Fan Relay 24 Volt Coil, 1](https://images-na.ssl-images-amazon.com/images/I/61S6BADdycL._AC_US320_.jpg)
Emerson 90 380 Fan Relay 24 Volt Coil, 1
![BOSCH 0332209150 Changeover Mini Relay - 5 Pins, 12 V, 20/30 A - Single](https://images-na.ssl-images-amazon.com/images/I/511fbOsNopL._AC_US320_.jpg)
BOSCH 0332209150 Changeover Mini Relay - 5 Pins, 12 V, 20/30 A - Single
![Tnisesm 2PCS Power Relay AC120V Coil, 30A SPDT(1NO 1NC) 120 VAC with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay NT90-AC120V-10X](https://images-na.ssl-images-amazon.com/images/I/61xKzh9RMEL._AC_US320_.jpg)
Tnisesm 2PCS Power Relay AC120V Coil, 30A SPDT(1NO 1NC) 120 VAC with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay NT90-AC120V-10X
![BOSCH 0332201107 Changeover Micro Relay - 5 Pins, 12 V, 30/10 A - Single](https://images-na.ssl-images-amazon.com/images/I/51SDbngtMZL._AC_US320_.jpg)
BOSCH 0332201107 Changeover Micro Relay - 5 Pins, 12 V, 30/10 A - Single
![mxuteuk 2pcs JQX-13FL AC 110V/120V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay, with Base, with DIN Rail Slotted Aluminum](https://images-na.ssl-images-amazon.com/images/I/61XDEhrNpAL._AC_US320_.jpg)
mxuteuk 2pcs JQX-13FL AC 110V/120V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay, with Base, with DIN Rail Slotted Aluminum
![HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V](https://images-na.ssl-images-amazon.com/images/I/71rOVzcwzIL._AC_US320_.jpg)
HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V
![BOSCH 0986332002 Normal Open Mini Relay - 4 Pins, 12 V, 70 A - Single](https://images-na.ssl-images-amazon.com/images/I/51K9pe2kaEL._AC_US320_.jpg)
BOSCH 0986332002 Normal Open Mini Relay - 4 Pins, 12 V, 70 A - Single
![Functional Devices RIBU1C Enclosed Pilot Relay, 10 Amp Spdt with 10-30 Vac/Dc/120 Vac Coil](https://images-na.ssl-images-amazon.com/images/I/71c83m3K9kL._AC_US320_.jpg)
Functional Devices RIBU1C Enclosed Pilot Relay, 10 Amp Spdt with 10-30 Vac/Dc/120 Vac Coil
![Functional Devices RIB2401B Power Relay, 20 Amp SPDT, 24 Vac/dc/120 Vac Coil, NEMA 1 Housing](https://images-na.ssl-images-amazon.com/images/I/81amxWRLnuL._AC_US320_.jpg)
Functional Devices RIB2401B Power Relay, 20 Amp SPDT, 24 Vac/dc/120 Vac Coil, NEMA 1 Housing
![Inkbird Solid State Relay 40DA DC SSR Black Heat Sink for PID Thermostat Temperature Controller](https://images-na.ssl-images-amazon.com/images/I/71fZ3LQAV3L._AC_US320_.jpg)
Inkbird Solid State Relay 40DA DC SSR Black Heat Sink for PID Thermostat Temperature Controller
![Tnuocke 12V 30A 250VAC Fully-Sealed PCB Relay for PC Board or Panel-Mounted,Solve F01 Code Problem of Dryer,with Soldering Sucker Pump G8P-1A4P-12VDC](https://images-na.ssl-images-amazon.com/images/I/51OsWyW3+pL._AC_US320_.jpg)
Tnuocke 12V 30A 250VAC Fully-Sealed PCB Relay for PC Board or Panel-Mounted,Solve F01 Code Problem of Dryer,with Soldering Sucker Pump G8P-1A4P-12VDC
![Omron G7L-2A-BUBJ-CB DC24 General Purpose Relay With Test Button, Class B Insulation, Screw Terminal, Upper Bracket Mounting, Double Pole Single Throw Normally Open Contacts, 79 mA Rated Load Current, 24 VDC Rated Load Voltage](https://images-na.ssl-images-amazon.com/images/I/81LBKTagxTL._AC_US320_.jpg)
Omron G7L-2A-BUBJ-CB DC24 General Purpose Relay With Test Button, Class B Insulation, Screw Terminal, Upper Bracket Mounting, Double Pole Single Throw Normally Open Contacts, 79 mA Rated Load Current, 24 VDC Rated Load Voltage
![TWTADE/JTX-2C, MK2P-I DPDT Power Relay with Plug-in Terminal Socket Base, AC 110V Coil, 8 Pin 2NO 2NC (Quality Assurance for 1 Years) AC 110V](https://images-na.ssl-images-amazon.com/images/I/61e2P1I49XL._AC_US320_.jpg)
TWTADE/JTX-2C, MK2P-I DPDT Power Relay with Plug-in Terminal Socket Base, AC 110V Coil, 8 Pin 2NO 2NC (Quality Assurance for 1 Years) AC 110V
![Omron G7L-2A-TUB-J-CB-AC24 General Purpose Relay With Test Button, Class B Insulation, QuickConnect Terminal, Upper Bracket Mounting, Double Pole Single Throw Normally Open Contacts, 71 mA Rated Load Current, 24 VAC Rated Load Voltage](https://images-na.ssl-images-amazon.com/images/I/71cHE0+pxzL._AC_US320_.jpg)
Omron G7L-2A-TUB-J-CB-AC24 General Purpose Relay With Test Button, Class B Insulation, QuickConnect Terminal, Upper Bracket Mounting, Double Pole Single Throw Normally Open Contacts, 71 mA Rated Load Current, 24 VAC Rated Load Voltage
![HiLetgo 2pcs 12V Single Bistable Self-Locking Relay Module Push to Start and Stop](https://images-na.ssl-images-amazon.com/images/I/61HbH87r0pL._AC_US320_.jpg)
HiLetgo 2pcs 12V Single Bistable Self-Locking Relay Module Push to Start and Stop
![OONO DPST 1NO 1NC 8Amp Power Relay Module, AC/DC 12V Control Voltage](https://images-na.ssl-images-amazon.com/images/I/61jQwttVWZL._AC_US320_.jpg)
OONO DPST 1NO 1NC 8Amp Power Relay Module, AC/DC 12V Control Voltage
![Omron G7L-1A-TUB-CB-AC100/120 General Purpose Relay, Class B Insulation, QuickConnect Terminal, Upper Bracket Mounting, Single Pole Single Throw Normally Open Contacts, 17 to 20.4 mA Rated Load Current, 100 to 120 VAC Rated Load Voltage](https://images-na.ssl-images-amazon.com/images/I/617v1A2j+uL._AC_US320_.jpg)
Omron G7L-1A-TUB-CB-AC100/120 General Purpose Relay, Class B Insulation, QuickConnect Terminal, Upper Bracket Mounting, Single Pole Single Throw Normally Open Contacts, 17 to 20.4 mA Rated Load Current, 100 to 120 VAC Rated Load Voltage
![5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino](https://images-na.ssl-images-amazon.com/images/I/71aojw7GmKL._AC_US320_.jpg)
5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino
![CG Solid State Relay SSR-25DD DC to DC Input 3-32VDC To Output 5-240VDC 25A Single Phase Plastic Cover](https://images-na.ssl-images-amazon.com/images/I/71cCjYUKNqL._AC_US320_.jpg)
CG Solid State Relay SSR-25DD DC to DC Input 3-32VDC To Output 5-240VDC 25A Single Phase Plastic Cover
![G8P-1A4P-12VDC 30A 250VAC Fully-Sealed PCB Dryer Relay with 10g Solder Wire Tool Combination for Replacement on The Circuit Board PC Board or Panel-Mounted HE004](https://images-na.ssl-images-amazon.com/images/I/51FGIVcsHML._AC_US320_.jpg)
G8P-1A4P-12VDC 30A 250VAC Fully-Sealed PCB Dryer Relay with 10g Solder Wire Tool Combination for Replacement on The Circuit Board PC Board or Panel-Mounted HE004
![HiLetgo 2pcs 12V 30A One Channel Relay Module Optocoupler Isolation High and Low Trigger 12V](https://images-na.ssl-images-amazon.com/images/I/61r3dqhiZOL._AC_US320_.jpg)
HiLetgo 2pcs 12V 30A One Channel Relay Module Optocoupler Isolation High and Low Trigger 12V
![Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts](https://images-na.ssl-images-amazon.com/images/I/614+MLxrEiL._AC_US320_.jpg)
Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts
![HiLetgo 2pcs DC 24V 1 Channel Relay Module with OPTO Isolation Support High or Low Level Trigger](https://images-na.ssl-images-amazon.com/images/I/711CN2KclvL._AC_US320_.jpg)
HiLetgo 2pcs DC 24V 1 Channel Relay Module with OPTO Isolation Support High or Low Level Trigger
![AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger](https://images-na.ssl-images-amazon.com/images/I/81jrsEVDajL._AC_US320_.jpg)
AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger
![DPST 1NO 1NC 8Amp Power Relay Module, Briidea 24V AC/DC Power Relay Control Voltage, White](https://images-na.ssl-images-amazon.com/images/I/61YIWCveiBS._AC_US320_.jpg)
DPST 1NO 1NC 8Amp Power Relay Module, Briidea 24V AC/DC Power Relay Control Voltage, White
![NOYITO 30A 1-Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 30A for PLC Automation Equipment Control Industrial Control (1-Channel 5V)](https://images-na.ssl-images-amazon.com/images/I/81CPp+kos7L._AC_US320_.jpg)
NOYITO 30A 1-Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 30A for PLC Automation Equipment Control Industrial Control (1-Channel 5V)
![CG Solid State Relay SSR-40DA DC to AC Input 3-32VDC To Output 24-480VAC 40A Single Phase Plastic Cover…](https://images-na.ssl-images-amazon.com/images/I/71vgqZmxIuL._AC_US320_.jpg)
CG Solid State Relay SSR-40DA DC to AC Input 3-32VDC To Output 24-480VAC 40A Single Phase Plastic Cover…
![Inkbird SSR Solid State Relay SSR 40DA for PID Thermostat Temperature Controller](https://images-na.ssl-images-amazon.com/images/I/51umJGgh4KL._AC_US320_.jpg)
Inkbird SSR Solid State Relay SSR 40DA for PID Thermostat Temperature Controller
![TWTADE/AC 110V 10A Coil Electromagnetic Power Relay 8 Pins 2DPT 2NO+2NC with Indicator Light and Socket Base -YJ2N-LY](https://images-na.ssl-images-amazon.com/images/I/61lNcH8s62L._AC_US320_.jpg)
TWTADE/AC 110V 10A Coil Electromagnetic Power Relay 8 Pins 2DPT 2NO+2NC with Indicator Light and Socket Base -YJ2N-LY
![SSR-40DA 40A Solid State Relay Input 3-32V DC Output 24-380V AC (SSR-40 DA)](https://images-na.ssl-images-amazon.com/images/I/61qMj1m2YTL._AC_US320_.jpg)
SSR-40DA 40A Solid State Relay Input 3-32V DC Output 24-380V AC (SSR-40 DA)
![HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger](https://images-na.ssl-images-amazon.com/images/I/61QR34LKFRL._AC_US320_.jpg)
HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger
![Kyoto Electric KF0602D DC-to-DC Solid State Relay, 32 Volt, DC Input, 2 Amp, 4-Pin, 1.4"L x 0.3"W x 0.9"H](https://images-na.ssl-images-amazon.com/images/I/41viIpmRjcL._AC_US320_.jpg)
Kyoto Electric KF0602D DC-to-DC Solid State Relay, 32 Volt, DC Input, 2 Amp, 4-Pin, 1.4"L x 0.3"W x 0.9"H
![Relay 68083380AA (Set of 2) 12VDC 35A, 4 Pins SPST Automotive Power Relay Compatible with 12088567](https://images-na.ssl-images-amazon.com/images/I/614JCk7Np9L._AC_US320_.jpg)
Relay 68083380AA (Set of 2) 12VDC 35A, 4 Pins SPST Automotive Power Relay Compatible with 12088567
![TE CONNECTIVITY / POTTER & BRUMFIELD T92P7D22-12 POWER RELAY, 12VDC, 30A, DPST-NO, FLANGE](https://images-na.ssl-images-amazon.com/images/I/31Re1CwB5VL._AC_US320_.jpg)
TE CONNECTIVITY / POTTER & BRUMFIELD T92P7D22-12 POWER RELAY, 12VDC, 30A, DPST-NO, FLANGE
![Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10" Width, 1.10" Length (Pack of 2)](https://images-na.ssl-images-amazon.com/images/I/61cQSfOXNyL._AC_US320_.jpg)
Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10" Width, 1.10" Length (Pack of 2)
![CGELE Solid State Relay SSR-40AA AC to AC Input 70-250VAC to Output 24-480VAC 40A Single Phase Plastic Cover](https://images-na.ssl-images-amazon.com/images/I/71G1KGGx9yL._AC_US320_.jpg)
CGELE Solid State Relay SSR-40AA AC to AC Input 70-250VAC to Output 24-480VAC 40A Single Phase Plastic Cover
![CGELE 3PCS Aluminum Heat Sink SSR Dissipation for Single Phase Solid State Relay 10A,25A,40A Black Radiator…](https://images-na.ssl-images-amazon.com/images/I/71ShnPVaDpL._AC_US320_.jpg)
CGELE 3PCS Aluminum Heat Sink SSR Dissipation for Single Phase Solid State Relay 10A,25A,40A Black Radiator…
![Electromagnetic Power Relay, 8-Pin 10 AMP 110V/120V AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ 2PCS [Applicable for DIN Rail System]](https://images-na.ssl-images-amazon.com/images/I/71e4o17SGYL._AC_US320_.jpg)
Electromagnetic Power Relay, 8-Pin 10 AMP 110V/120V AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ 2PCS [Applicable for DIN Rail System]
![BlueStars 2PCS Solid State Relay SSR-25DD DC to DC Input 3-32VDC Output 5-200VDC 25A Single Phase Semi-Conductor Relay Module - Pack of 2 - Control 3-32V DC Load 5-200V DC](https://images-na.ssl-images-amazon.com/images/I/71Uu0Yuqb8L._AC_US320_.jpg)
BlueStars 2PCS Solid State Relay SSR-25DD DC to DC Input 3-32VDC Output 5-200VDC 25A Single Phase Semi-Conductor Relay Module - Pack of 2 - Control 3-32V DC Load 5-200V DC
![mxuteuk 2pcs AC 110V/120V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay General Purpose JQX-13F-DZ-AC110V](https://images-na.ssl-images-amazon.com/images/I/611jKtZdcnL._AC_US320_.jpg)
mxuteuk 2pcs AC 110V/120V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay General Purpose JQX-13F-DZ-AC110V
![HiLetgo 2pcs SSR-25DA 25A 250V Solid State Relay Module](https://images-na.ssl-images-amazon.com/images/I/61qe+QlXIZL._AC_US320_.jpg)
HiLetgo 2pcs SSR-25DA 25A 250V Solid State Relay Module
![DaFuRui 5v Relay Module,8Pack 1 Channel Relay Module 5v Relay Board with Optocoupler Support High/Low Level Trigger for Arduino Relay](https://images-na.ssl-images-amazon.com/images/I/81WySLE4d6L._AC_US320_.jpg)
DaFuRui 5v Relay Module,8Pack 1 Channel Relay Module 5v Relay Board with Optocoupler Support High/Low Level Trigger for Arduino Relay
![Baomain High Power Relay JQX-62F-2Z Coil Voltage AC 110V 80A DPDT 2NO 2NC Electronmagnetic Relay](https://images-na.ssl-images-amazon.com/images/I/81mHb0aunSL._AC_US320_.jpg)
Baomain High Power Relay JQX-62F-2Z Coil Voltage AC 110V 80A DPDT 2NO 2NC Electronmagnetic Relay
![Wired DC-DC 10Amp Isolated Solid State Relay Module, SSR in 3-32VDC Out 5-30VDC, for Raspberry-Pi Arduino ESP32 PLC MCU DSP](https://images-na.ssl-images-amazon.com/images/I/61B1HyLnt9L._AC_US320_.jpg)
Wired DC-DC 10Amp Isolated Solid State Relay Module, SSR in 3-32VDC Out 5-30VDC, for Raspberry-Pi Arduino ESP32 PLC MCU DSP
![EPLZON NT90-AC120V-10X Power Relay AC 120V Coil 120 VAC 30A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay(Pack of 2pcs)](https://images-na.ssl-images-amazon.com/images/I/61NBzO0esAL._AC_US320_.jpg)
EPLZON NT90-AC120V-10X Power Relay AC 120V Coil 120 VAC 30A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay(Pack of 2pcs)
![AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger](https://images-na.ssl-images-amazon.com/images/I/71ib7ipOilL._AC_US320_.jpg)
AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger
![mxuteuk 2pcs JQX-13FL DC 12V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay, with Base, with DIN Rail Slotted Aluminum](https://images-na.ssl-images-amazon.com/images/I/61XDEhrNpAL._AC_US320_.jpg)
mxuteuk 2pcs JQX-13FL DC 12V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay, with Base, with DIN Rail Slotted Aluminum
![TWTADE/JQX-12F-2Z DC 12V Coil Voltage 30A DPDT 2NO+2NC General Purpose High Power Relay 8 Pin (Quality assurance for 1 years)](https://images-na.ssl-images-amazon.com/images/I/61JYSOSfxYL._AC_US320_.jpg)
TWTADE/JQX-12F-2Z DC 12V Coil Voltage 30A DPDT 2NO+2NC General Purpose High Power Relay 8 Pin (Quality assurance for 1 years)
![TWTADE 2PCS SSR-25 DA 25A 3-32V DC / 24-480V AC SSR Single Phase Solid State Relay](https://images-na.ssl-images-amazon.com/images/I/71VH87Lz-rL._AC_US320_.jpg)
TWTADE 2PCS SSR-25 DA 25A 3-32V DC / 24-480V AC SSR Single Phase Solid State Relay
![AEDIKO 4pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level](https://images-na.ssl-images-amazon.com/images/I/71TfqCqH8PL._AC_US320_.jpg)
AEDIKO 4pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level
EDITOR'S NOTES
During our Industrial Scientific Electrical Relays research, we found hundreds Industrial Scientific Electrical Relays products and shortlisted 51 quality products. We collected and analyzed 21,631 customer reviews through our big data system to write the Industrial Scientific Electrical Relays list. We found that most customers choose Industrial Scientific Electrical Relays with an average rating of 1.9 . The seller of top 1 product with rating 4.6 and has received honest feedback from 1,086 consumers.