the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A.

using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA.

the module Operating voltage 12V

the module can be high or low by a jumper setting trigger.

fault-tolerant design, even if the control line is broken, the relay will not operate.

the power indicator (green), the relay status indicator (red)

the interface design of human nature, all interfaces are available through a direct connection terminal lead, very convenient

module size: 50mm*26mm*17mm (L*W*H)

Module interface:

• DC+: positive power supply (VCC)


• DC-: negative power supply (GND)


• IN: can be high- or low-level control relay

Relay outputs:

• NO: normally open relay interface


• COM: Common Interface Relays


• NC: normally closed relay interface

High- and low-level trigger options:

It is low level trigger when jumper connect to LOW pin

It is high level trigger when jumper connect to HIGH pin