Bistable impulse relay with memory UNI MR-42 UNI 002470008

Bistable impulse relay – with memory control

The MR-42 UNI bistable impulse relay is a device designed to control electrical circuits using short pulses. Its key feature is memory – after each pulse, it changes the state of the contacts and maintains it even after the power is cut off. This solution is ideal for situations where you need to switch circuits without having to continuously hold the switch.

This model is distinguished by its versatility – it supports 230V AC voltage and a rated current of 16A, making it compatible with most standard electrical installations. The MR-42 UNI relay finds application in lighting control systems, heating devices, ventilation and other applications requiring switching state with an impulse.

Construction and mounting

The MR-42 UNI relay has been designed for mounting on a TH 35 rail, which facilitates its installation in electrical distribution boards. Compact dimensions (1 module width) allow for efficient use of space in control cabinets. Made of high-quality materials, it ensures reliable operation and long life.

• Mounting on a standard TH 35 rail.
• One module width – optimal space utilization.
• Contact load up to 16A – possibility of controlling various receivers.
• Memory state – maintaining contact position after power failure.
• Universal supply voltage (230V AC) – wide range of applications.

Applications and benefits

The MR-42 UNI relay works well in both home and industrial installations. Thanks to the memory function, it is ideal for controlling lighting in corridors, staircases or utility rooms, where we want to avoid having to hold the switch on all the time. The ability to control two groups of receivers with one button (series function) further increases its functionality.

• Lighting control (corridors, stairs, utility rooms).
• Automation of ventilation and heating systems.
• Use in alarm and security systems.
• Possibility of controlling two circuits with one button (series function).
• Quiet operation – comfortable use.