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Industrial & Scientific > Industrial Electrical > Controls & Indicators > Relays > Voltage Monitoring Relays

hiBCTR 12V 8-Channel Relay Module with Optocoupler Isolation - High/Low Level Trigger 10A 250VAC for Arduino/PLC Industrial Control
R 1,149
hiBCTR 12V 8-Channel Relay Module with Optocoupler Isolation - High/Low Level Trigger 10A 250VAC for Arduino/PLC Industrial Control

3 Phase Voltage Monitor Relay 208-480V AC Phase Sequence Protection Over Under Voltage Protector for Industrial Equipment
R 1,987
3 Phase Voltage Monitor Relay 208-480V AC Phase Sequence Protection Over Under Voltage Protector for Industrial Equipment

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 12V)
R 586
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 12V)

NOYITO 1-Channel Self-Locking Relay Module One Button Start-Stop Bistable 10A Load for SCM Control, Household Appliances Control, Industrial Equipment Control (5V)
R 545
NOYITO 1-Channel Self-Locking Relay Module One Button Start-Stop Bistable 10A Load for SCM Control, Household Appliances Control, Industrial Equipment Control (5V)

Modbus RTU 16-Ch Relay Module, RS485 Interface, with Multiple Isolation Protection Circuits, Industrial-Grade, Rail-Mount Case (Modbus RTU Relay 16CH)
R 2,657
Modbus RTU 16-Ch Relay Module, RS485 Interface, with Multiple Isolation Protection Circuits, Industrial-Grade, Rail-Mount Case (Modbus RTU Relay 16CH)

2PCS 2-Channel 12V Relay Module with Optocoupler Isolation – High/Low Level Trigger Control for Arduino, Raspberry Pi, PLC – Industrial Automation, Smart Home DIY (Supports AC/DC Loads)
R 1,060
2PCS 2-Channel 12V Relay Module with Optocoupler Isolation – High/Low Level Trigger Control for Arduino, Raspberry Pi, PLC – Industrial Automation, Smart Home DIY (Supports AC/DC Loads)

Relay Remote 110-240V 6 Channel RF Relay Receiver Module Board Remote Control Switch Momentary Selflocking Interlock 30mA x 6 2500W x 6
R 1,052
Relay Remote 110-240V 6 Channel RF Relay Receiver Module Board Remote Control Switch Momentary Selflocking Interlock 30mA x 6 2500W x 6

Fafeicy DC 12V Voltage Detection Relay Module, 0 to 99.9V Monitoring Range with LED Display and Multiple Protections, for Industrial Automation and Power Systems
R 614
Fafeicy DC 12V Voltage Detection Relay Module, 0 to 99.9V Monitoring Range with LED Display and Multiple Protections, for Industrial Automation and Power Systems

Industrial Relays 3-phase Voltage Relay
R 6,545
Industrial Relays 3-phase Voltage Relay

Eujgoov DC 12V Voltage Detection Relay Module, 0 to 99.9V Monitoring Range with LED Display and Multiple Protections, for Industrial Automation and Power Systems
R 617
Eujgoov DC 12V Voltage Detection Relay Module, 0 to 99.9V Monitoring Range with LED Display and Multiple Protections, for Industrial Automation and Power Systems

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