31, 32, 33HM Hermetic Motor Protector
Motor Protectors
KLIXON® 31HM, 32HM, and 33HM on-winding motor protectors are 3-phase line break, automatic reset devices wired in series with each phase at the neutral point.
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- Protect WYE (Star) wound 3-phase motors from 1 to 15HP. Used in refrigeration compressors, submersible pumps and other restrictive environments.
- Increased protection in a small size, with a rugged all welded windings.
- Hermetic reliability designed for leakage rates less than 1 x 10-9 per second of air with 1 atmosphere pressure differential.
- Klixon® snap-action discs assure positive make and break action and controlled temperature differential.
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Specifications
| Opening Temperature | 90ºC to 170ºC in 5ºC increments Tolerance ±5ºC |
|---|---|
| Closing Temperature | To suit application Tolerance ±9ºC for <150ºC opening ±15ºC for ≥150ºC |