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FTCBlock 4 Channel DC 12V Relay Module with Optocoupler for PLC Automation Equipment Control Industrial Control
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About FTCBlock 4 Channel DC 12V Relay Module With
Feature: Module Size: 73*50*18.5mm With 4 fixed bolt holes, diameter 3.1mm, spacing 44.5*67mm High and low level trigger selection: Trigger current is 2-4mA, trigger low level is 0V, trigger high level is 12V 1. S1 1 way relay high or low level trigger selection; 2. S2 2 way relay high or low level trigger selection; 3. com and low in short circuit, the relay is low level trigger, com and high end in short circuit, the relay is high level trigger. Input Interface: 1. DC+: to connect the power positive (voltage as the relay required 12V) 2. DC-: to connect the power negative 3. IN1-IN4:can set the high or low level control relay Output Interface: 1. NO1-NO4: relay normally open interface, suspend the relay before pulling, then short connect with COM 2. COM1-COM4:relay common interface >3. NC1-NC4: relay normally close interface, short connect the relay with COM before pulling, then suspend Package Inlcude: 1pcs 12V 4 Channel High and Low Level Trigger Relay (Red Board) Worry-free Warranty: 12 months worry-free product guarantee
