Automation & Control
Contactor
A heavy-duty electrically operated switch designed for power loads such as motors and heaters.
IN ONE SENTENCE
A control coil opens or closes robust power contacts.
In normal English
Contactors are designed for repeated switching of larger currents and are commonly combined with overload protection for motors.
Why would I use it?
Use it when a control system must switch substantial electrical loads.
THINK OF IT LIKE…
A relay built for the heavy lifting.
Related terms
relay, motor starter, overload
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