Definite Purpose Overload Relays
Definite purpose overload relays are electromagnetic switches with specific operating performance specifications. Also known as DP overload relays, they send signals to contactors to de-energize circuits when excessive current or phase failure is detected, protecting motors, machinery, equipment, and high-voltage systems from overheating and being damaged.
Definite purpose overload relays combine with compatible contactors to create motor starter assemblies.
Definite Purpose Electronic Overload Relays
These definite purpose electronic overload relays trigger contactors to break electrical connections with downstream equipment once the current reaches a pre-determined range of full-load amperage. They have adjustable current settings and use semiconductors to monitor for overload conditions and trip once the current exceeds that set point. Electronic overload relays turn circuits on and off faster, are more accurate, and have longer service lives than thermal overload relays.
Relay Mounting Style: Direct To Contactor
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