IEC Contactors and Starters Frequently Asked Questions
IEC Contactors and Starters Frequently Asked Questions
| 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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This item was last updated on 02-18-2004
Document ID: 842
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