Single-channel 250V/10A bistable pulse relay, 12V supply, contact-closure trigger

Single-channel 250V/10A bistable pulse relay 12V

12V 10A bistable latching relay is a compact, functional device for remote control of electrical circuits. It works like an electronic latch. Thanks to bistable operation, the relay has two stable states: on and off. This means its state changes with each short pulse - after a single press of the on-board push button or using a remote button. The 12 V DC supply voltage makes the module ideal for a wide range of projects, including Arduino, ESP8266, ESP32, and Raspberry Pi.

Features and operation

After connecting the supply voltage, the relay remains off. The first button press activates the relay, and a red LED indicates operation. The next press turns the relay off, for simple, intuitive use. Thanks to the remote terminals, you can conveniently mount the button in a remote location, for example on a control panel.

Key technical specifications

• Supply voltage: 12 V DC
• Current consumption: up to 40 mA
• Maximum load current: 10 A
• Operating temperature range: -30°C to 50°C
• Operating humidity: 0-95% (non-condensing)
• Wiring: screw terminals (no soldering required)

Terminal connections

• Power: +12V DC and GND (ground)
• Inputs: remote push button (2 terminals)
• Relay contacts: NC (normally closed), COM (common), NO (normally open)

Physical dimensions

• Length: 53 mm
• Width: 32 mm
• Height: 25 mm
• Weight: approx. 80 g

Example applications

• Controlling lighting in smart home systems
• Switching electric motors on and off
• Controlling blinds and window shutters
• Managing water pumps in irrigation systems
• Switching other circuits that require high power

Benefits

• Reliability: stable operation thanks to bistable design
• Easy installation: screw terminals eliminate the need for soldering
• Versatility: external control button can be connected
• Compact size: easy to fit in enclosures and junction boxes
• Broad compatibility: excellent for home, industrial, and DIY projects