Contactors and Protection Relays
Explore the broadest range of solutions to feed, control and protect electric motors. Find our contactors for high-durability direct online, star-delta or reversing motor control. Combine them with circuit breakers to meet machine safety standards and protect your motors against overloads and short circuits. Add relays for additional protection, specific for your machine and motors.
Discover TeSys, a range of reversing contactors and electrical magnetic switches, designed to make and break current for a variety of applications, including IEC and NEMA. TeSys offers high reliability and a long mechanical and electrical life, and comes with a complete line of accessories for motor and load control.
Thermal overload relays are essential components of electric motors. They protect motors from excessive current, which can lead to overheating and costly damage. By sensing temperature rises, they automatically trip the circuit, ensuring motor longevity and preventing downtime. This proactive safeguard is vital for maintaining the efficiency and safety of industrial operations.
How it works
Overload relays protect electric motors by monitoring current flow and disconnecting the circuit when it exceeds safe operating limits. This prevents overheating, winding damage, and costly downtime. Types include:
- Thermal: Use heat-sensitive elements to mimic motor heating.
- Magnetic: Offer rapid response to sudden current spikes.
- Electronic: Provide precise, microprocessor-based monitoring.
The benefits include extended motor lifespan, enhanced safety, and significant cost savings by avoiding repairs and operational disruptions.
