3HM Hermetic motor protector
Motor Protectors
KLIXON® 3HM hermetic overload protector are new generation products designed to meet the demands of tomorrow’s compressors. The 3HM family of motor protectors can be applied to air conditioning compressors ranging from 1 to 2 ½ HP. They may also be used in commercial motors which must function in high-pressure corrosive environments. Its low profile allows ease of installation, while the overall design provides resistance to mechanical shock.
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The KLIXON® 3HM motor protectors are line break automatic reset controls which are wired in series with the motor windings. These protectors are designed to track winding temperatures and respond to changes in line current, which provides protection against the overload conditions listed below:
- Running overload
- High/Low voltage locked rotor
- High voltage light load
- High discharge temperature
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Specifications
| Purpose of Control | Thermal protector for motor compressor |
| Rated Voltage | 240 VAC |
| Rated Current | 16A inductive load, 80A at p/f 0.6 |
| Temperature Range | 90°C to 175°C |
| Ambient Temp. Limits | Tmin=0°C / Tmax=200°C |
| Tolerance on Temp. | Open ±5K, Close ±11K |
| Type of Disconnection | Type3C |
| Pollution Situation | Normal |
| PTI for Insulation | PTI600 |
| Enclosure Protection Degree | IP00 |