Question

What does trip free mean?

Answer

Refers to an overload unit or MSP that cannot be held on or started by the handle or pushbutton during a sustained overload. It is mostly a reference to the older style NEMA heater units that utilized a solder-pot. When the solder was in liquid-phase; the ratchet would not allow the spring to engage the reset. When the unit cooled down and the solder pot became solid again, the starter could be reset.

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FAQ Subcategory: None

This item was last updated on 2004-02-18
Document ID: 842

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