Thermal overload relay for MC50a-65a series contactor, current 45-65A MT-63 45-65A

Motor and Circuit Protection – Thermal Overload Relay MT-63

The MT-63 thermal overload relay is a reliable device used to protect AC motors and electrical circuits from the effects of overloads. Its bimetal construction ensures an effective response to irregularities, such as phase failures, prolonged starts, or motor blockage. Mounting directly under a contactor or separately with a dedicated UZ-63L base provides flexibility in choosing a solution for specific needs.

Functionality and Application

The MT-63 relay is designed to work with MC-50a - 65a series contactors. Its current setting range (45-65A) allows for the protection of a wide range of devices. Thanks to the possibility of automatic and manual reset (reset button), it provides ease of use and quick restoration of installation operation after removing the cause of the overload. It has one normally open and one normally closed auxiliary contact, which enables integration with control and signaling systems.

Construction and Characteristic Features

The device is characterized by a simple construction and easy installation. Made of high-quality materials, it ensures durability and reliable operation even in demanding conditions. The rated operating voltage of up to 690V makes it a universal solution for many industrial and commercial applications. The connection of the main contacts is made using screw connections, which guarantees a secure and safe connection of the wires.