Relay Module (1 Channel) 12V with High/Low Level Trigger Selector

Specifications

• Normally open and Normally closed.
• High-level trigger or low-Level trigger selection by a jumper.
• Optocoupler isolation.
• Terminal blocks for both input and output.
• Two LED indicators: power (green LED), the relay status (red LED).
• Fault-tolerant design, even if the control line is broken, the relay will not operate.
• Control voltage : 12V.
• Trigger current: 3mA ~ 5mA.
• Maximum load: AC 250V/10A, DC 30V/10A
• Dimension: 50mm x 26mm x 18.5mm (Lx Wx H).

Input Interface

• DC+ : Connect the positive pole of the power supply.
• DC- : Connected the negative pole of the power supply.
• IN: Signal trigger input ( high or low level signal selected via a jumper).

Output Interface

• NO: The normally open interface.
• NC: The normally closed interface.
• COM: The common interface for both normally open and normally closed.

High/Low level Trigger Selection Jumper:

• If the jumper is placed between COM and L, the relay uses LOW level trigger.
• If the jumper is placed between COM and H, the relay uses HIGH level trigger.

How it works

High Level Trigger:

• When IN is LOW level signal, the NO does not connect with COM and the NC connects with COM.
• When IN is HIGH level signal, the NO connects with COM and the NC does not connect with COM.

Low Level Trigger:

• When IN is LOW level signal, the NO connects with COM and the NC does not connect with COM.
• When IN is HIGH level signal, the NO does not connect with COM and the NC connects with COM.