Thermal overload relay for MC185a-225a series contactor, current 100-160A MT-225 100-160A

Thermal overload relay – protection for motors and circuits

The MT-225 thermal overload relay, designed to work with MC-185a and MC-225a series contactors, is a reliable safety element protecting electrical circuits and motors against the effects of overloads. This device, based on bimetallic technology, protects against damage resulting from overloads, phase asymmetry, long-term starts and motor stalls. This ensures the continuity of the installation and minimizes the risk of costly downtime.

Construction and application

The MT-225 relay is dedicated for mounting directly under the contactor or separately, using the dedicated mounting base UZ-63L. Its main task is to monitor the current flowing through the circuit and, in the event of exceeding the permissible value, to disconnect the power supply. This is crucial for protecting electric motors, which are particularly sensitive to overloads. This relay finds application in a wide range of industrial, commercial installations and automation systems.

Key features and benefits

• Wide adjustment range: The MT-225 relay offers a current setting range from 100A to 160A, allowing it to be adapted to various applications and loads.
• Compatibility: It has been designed to work with MC-185a and MC-225a contactors, ensuring optimal functionality in the system.
• Bimetallic technology: The use of bimetal guarantees precise and reliable operation in varying working conditions.
• Easy installation: The possibility of direct mounting or on a dedicated UZ-63L base facilitates installation and servicing.
• Protection against multiple threats: Protects against overloads, phase asymmetry, long-term starts and motor stalls – comprehensive installation protection.
• Durable construction: Ensures long life and trouble-free operation even in harsh industrial conditions.

The MT-225 relay is compatible with MC-185a and MC-225a contactors and offers a current setting range from 100A to 160A.

Choosing the MT-225 thermal overload relay is an investment in the safety and reliability of your electrical installation. It is a solid solution for professionals and people who care about the proper functioning of their devices.