Description
[Discontinued] 5V Optocoupler Isolation Relay Module, SRA-20A
DESCRIPTION
- Maximum load: AC 125V/20A. DC 14V/20A;
- Using SMD optocoupler isolation. driving ability. stable performance; trigger current 5mA;
- Module voltage: 5V.
- The module can be set to high or low triggered by jumper;
- Fault-tolerant system. even if the control line is broken. the relay will not operate;
- Power indicator (green). relay status indicator (red)
- User friendly interface design. All interfaces can be connected directly via terminal wiring leads. very convenient
- module size: 50mm * 26mm * 18.5mm (L * W * H)
- has four mounting bolts holes. hole 3.1mm. 44.5mm * 20.5mm pitch
Interface:
- DC +: positive DC power supply (voltage required by the relay.5 V)
- DC-: negative DC power connection
- VREF: Ground electricode ; Connect to cathode of the controller board supply when set it to high; Connect to anode of the controller board supply when set it to high
- CH1: Relay controller interface
Relay outputs:
- NO1: normally open relay interface. the relay before the vacant after the pull shorted with COM
- COM1: Common Interface Relays
- NC1: normally closed relay interface, relay short connect with COM. after the pull-vacant
High and low level trigger selection ends:
- When jumper short circuit with LOW is low lever trigger;
- When jumper short circuit with high is high lever trigger.
WHAT’S IN THE PACKAGE
- 1 x optocoupler isolation relay module
