MSC PTC Starter/Motor Protector
Motor Protectors
KLIXON® MSC refrigeration package is a compact motor starter and motor protector package that dissipates less than 2 watts under typical operating conditions.
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- Applicable to fractional horsepower compressors used in residential refrigerators and freezers, and similar refrigeration applications
- Utilizes ceramic PTC (Positive Temperature Coefficient) thermistor element to energize / de-energize motor start windings
- Available for 120 and 220 volt applications
- Configurations available to suit most residential applications
- Less costly to install than discrete motor starter and protector components
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Specifications
| Temperature Limits | Ambient Air: 0°C to 70°C |
| Electrical Requirements | 120 or 240 VAC nominal voltage (50 or 60 Hz) |
| Room Temperature Resistance | 3.9Ω to 47Ω ratings available ±25% resistance tolerance |
| Switch Time | 0.1 – 1.4s at 120 or 240 VAC |
| Reliability | 500,000 cycles at maximum rated conditions of voltage and current |
| Device Actuation Temperatures | Open Temperature: 100°C to 160°C ± 5°C Close Temperature: 55°C to 70°C ± 9°C Temperature Differential: 60°C typical |
| Rated Hot Locked Rotor Current | 120 VAC: 18.0 A maximum 240 VAC: 10.0 A maximum 60% power factor |
| Ultimate Trip Current | 0.5 – 5.5 A @ 71°C |
| Endurance1 | Minimum of 15,000 cycles at maximum rated current at 120 and 240 volts, as predicted by Weibull analysis of the test data. This protection must be verified in the end application. |