Thermal overload relay for MC9b-40a series contactor MT current 0.16-0.25A MT-32 0.16-0.25A MT-32 0,16-0,25A

Thermal overload relay – protection for motors and installations

The MT-32 0.16-0.25A thermal overload relay is a key element in protecting electric motors and installations from overload. Designed to work with MC9b-40a series contactors, it provides reliable protection against damage resulting from excessive load, which translates to a longer lifespan of devices and minimized repair costs. Its operation is based on detecting temperature increases in the motor and disconnecting the power supply if permissible values are exceeded.

Construction and application

The MT-32 relay is equipped with a normally open (NO) and normally closed (NC) auxiliary contact, allowing it to be integrated with control and signaling systems. It has screw terminals for connecting wires, ensuring a solid and secure connection. The device operates in a temperature range of -5°C to 60°C and has an IP20 protection class, guaranteeing its resistance to dust. MT series thermal relays are widely used in industrial applications, HVAC systems, and household appliances where protection of electric motors is required.

Key features and benefits

• Wide adjustment range: The MT-32 relay is designed to protect motors with a rated current of 0.16A to 0.25A, making it a universal solution for various applications.
• High reliability: The construction based on proven LS Electric technologies guarantees long-lasting and trouble-free operation of the device.
• Auxiliary contact: The presence of NO/NC contacts allows for remote monitoring of the circuit status and integration with automation systems.
• Short-circuit protection: According to the technical documentation, the relay provides short-circuit protection (short-circuit current 5000A at 600V voltage).
• Easy installation: Compact dimensions and screw terminals facilitate installation of the relay in existing electrical installations.
• Compliance with standards: The device meets appropriate safety and quality standards, ensuring safe operation.
• Release class: MT series thermal relays have release class 10 – which means a quick response to overloads.

The relay is characterized by a current range of 0.16 to 0.25A, a rated voltage of 600V AC, an IP20 protection class, and operation in a temperature range of -5°C to +60°C. It also has a NO/NC auxiliary contact enabling integration with control systems.

Thanks to these features, the MT-32 thermal overload relay is not only a protective element but also an investment in the reliability and durability of the electrical system. It provides peace of mind for both installers and end-users.