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

The Relay Module 1 Channel 12V with High/Low Level Trigger Selector is a highly reliable and versatile switching device designed to control high-voltage and high-current circuits using low-voltage control signals. Operating at 12V DC, this single-channel module is ideal for integration with microcontrollers, such as Arduino or Raspberry Pi, or other digital control systems requiring precise control of high-power loads. Its robust design and user-friendly features make it an excellent choice for technical writers documenting electronics projects for e-commerce platforms, catering to both hobbyists and professional engineers.

Features:
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.
Specifications:
Parameter

Value

Supply Voltage

12VDC

Relay Type

SPDT (NO, COM, NC)

Relay Rating

10A @ 250VAC / 30VDC

Trigger Current

3mA ~ 5mA.

Dimensions(LxWxH)

48mm x 25mm x 18.5mm

Coil Voltage

12V

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.