Contactor

A Contactor is an electrically controlled switching device widely used in the control circuits of boilers, heaters, and industrial electrical panels. It is designed to repeatedly establish and interrupt the power flow to heavy electrical loads such as heating elements, boiler feed pumps, blower motors, and auxiliary circuits. In boiler and heater applications, contactors ensure reliable switching of high-current circuits with minimal power loss and safe isolation of the load from the power source.

Contactors are built with high mechanical and electrical endurance, capable of handling frequent ON/OFF operations under varying load conditions. Their compact design, arc-quenching capability, and suitability for both AC and DC circuits make them a critical component in ensuring the safe and efficient operation of thermal systems. They are often integrated with overload relays, timers, and protection devices for automatic control and safety interlocking in boiler and heater panels.

Auxiliary contacts (NO/NC) for interlocking, signaling, and control circuits.

Integration with temperature controllers, pressure switches, and safety devices.