Thermal overload relay for MC75a-100a series contactor MT current 80-100A MT-95 80-100A

Thermal overload relays for contactors – motor and installation protection

Thermal overload relay MT-95 80-100A is a reliable protection element designed to work with MC-75a, MC-85a and MC-100a contactors. Its main task is to protect electric motors from overload, which translates to a longer lifespan of devices and minimizing repair costs. Thanks to the precise setting range, the relay effectively reacts to irregularities in the motor's operation, disconnecting it from the power supply in the event of excessive load detection.

Construction and application

The MT-95 relay is mounted directly on the contactor, ensuring simple installation and a compact solution. The use of auxiliary NO (normally open) and NC (normally closed) contacts in the relay allows integration with control systems and alarm signaling. The wide range of current adjustment (80-100A) allows the relay to be adapted to different types of motors and applications. The device is used both in industrial installations and in electrical networks of public and residential buildings.

Key features and benefits

• Overload protection: Protects electric motors from damage caused by excessive load – this is crucial for maintaining production continuity and avoiding costly downtime.
• Setting range 80-100A: Allows precise adjustment to the characteristics of the protected circuit, ensuring optimal protection without unnecessary shutdowns.
• Direct mounting: Quick and easy mounting on the contactor minimizes installation time and simplifies servicing.
• NO/NC auxiliary contacts: Allow integration with control systems and signaling, increasing the functionality of the installation.
• Durability and reliability: Made of high-quality materials, it ensures long-lasting and trouble-free operation even in harsh environmental conditions.
• Compliance with standards: Meets the requirements of IEC 60529 standard, guaranteeing safety of use.
• Wide operating temperature range: Operation in the temperature range from -5°C to 60°C allows use in various environmental conditions.
• Operating voltage 690V: Enables use in networks with high rated voltage.

Thanks to its thoughtful design and high-quality workmanship, the MT-95 80-100A thermal overload relay is a reliable solution for anyone who cares about the safety and efficiency of their electrical devices.