20pcs 1 Channel 3.3V Low Level Trigger Relay Module Optocoupler Isolation Terminal COD

Compatibility

To confirm that this part fits your vehicle, please enter your vehicle's details below.

• Select
• Make:
• Select
• Submodel:
• Select
• Engine:

This part is compatible with vehicle(s).Show all compatible vehicles 1

• Year
• Make
• Model
• Submodel
• Trim
• Engine

1. DC+: Connect the power supply positive pole (voltage 3.3V). 2. DC-: Connect the power negative pole. 3. IN: Low level (3.3V) control relay pull in. 1. NO: Relay normal open, the relay suspends before pulling in, and then short-connect with the COM. 2. COM: Relay common interface 3. NC: Relay normal close, short connected with COM before pulling inand suspended after pulling in.

20 x 1 Channel 3.3V Relay Module