HCET 3MP/6AP Series Motor Thermal Protector Self-Resetting Overload Protection Switch for Automotive/Industrial Equipment
The HCET 3MP motor thermal protector is an intelligent electromechanical protection device engineered for demanding automotive and industrial applications. This UL-recognized component provides dual-mode protection through precise temperature monitoring (30-180°C ±5℃) and current overload detection (1-45A DC/AC). Featuring auto-reset functionality with manual override option, it effectively prevents motor burnout in starter systems, power tools, and HVAC equipment while complying with EU RoHS and REACH environmental directives. With IP67-rated housing and vibration-resistant construction, this SENSATA KLIXON alternative ensures reliable operation in extreme conditions (-40°C to +200°C).
Product feature:
- Dual Protection
Thermal-Current Hybrid Sensor: Simultaneously monitors winding temperature and current flow
Fast Trip Response: 4-10s cut-off prevents insulation degradation
Precision Calibration: ±2% current tolerance meets automotive-grade requirements - Robust Performance
Wide Voltage Coverage: 12VDC to 250VAC systems compatibility
High Cycle Life: 30,000+ operations (tested per UL 60730-1) - Application Flexibility
Multi-Industry Solution: Optimized for EV charging systems, industrial pumps, AGV robots, and renewable energy equipment
Custom Configuration: Selectable trip curves (10A/1H/3.5A) and terminal types (fast-on/ring/PCB mount) - Safety Compliance
Certified Protection: Short-circuit withstand (10kA) and arc flash containment
Lead-Free Construction: Meets RoHS standards
Electrical Characteristics:
30℃~180℃ Operating temperature range, Customizable temperature. | 4S~10S Special action time can be customized |
±5°C, ±8℃ Temperature Tolerance | 1A~45A The overload current tripping range can be customized according to customer's requirements. |
45amps/15 volts DC 15amps/30 volts DC 25amps/250 volts AC 30amps/125 volts AC Electrical characteristics |
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Product detail

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