What are Overload Relays?

Overload relays are crucial devices used to protect electric motors from excessive current and overheating. They automatically interrupt the motor circuit when a current surpasses a preset level, preventing damage and prolonging motor life.

Parameters for Selection:

  1. Current Rating: Match the relay to the motor’s full-load current.
  2. Trip Class: Defines the time to trip under overload conditions (e.g., Class 10, 20, 30).
  3. Reset Type: Manual or automatic resetting options.
  4. Ambient Temperature: Consider the operating environment.
  5. Mounting Compatibility: Ensure compatibility with the motor starter or contactor.

Applications:

Overload relays are widely used in industries such as manufacturing, HVAC, water treatment, and automotive sectors to protect motors... Read More

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