3 Phase Electric Motor Overload Thermal Protector Resettable Circuit Breaker 12V 24V

HCET 5AP Bimetal Motor Overload Protector Resettable Thermal Circuit Breaker for Automotive & Electric Motors 12V/24V Systems

The HCET 5AP series is an advanced bimetal motor protection device engineered for automotive and industrial applications. Combining current sensitivity with ambient temperature detection, this self-resetting thermal protector ensures reliable overload protection for DC motors in demanding environments.

Featuring a precision-calibrated bimetal strip (50°C–180°C ±5℃ tolerance), it delivers rapid trip response (4–10 seconds) to prevent motor burnout during voltage spikes or overheating. With customizable terminals and 30,000+ operation cycles, the 5AP series is ideal for automotive subsystems like power windows, wipers, sunroofs, and door locks, while maintaining compatibility with industrial machinery and HVAC systems.

Product feature:

• Dual-Sensing Protection
  - Triggers on overcurrent (1–25A) and ambient heat for comprehensive motor safeguarding.
  - Supports 12V/24V DC and 125V/250V AC systems.
• Automotive-Grade Durability
  - Compact design withstands vibration, temperature extremes (-40°C to 200°C), and harsh electrical loads.
  - 25A DC/6A AC rated for heavy-duty vehicle applications.
• Smart Resettable Function
  - Automatic recovery after fault clearance minimizes downtime in wiper motors, window regulators, and actuator systems.
• Custom Integration Options
  - Choose from multiple terminal types and wire lengths for seamless OEM/ODM installations.
• Global Compliance
  - Meets IEC/UL standards for electrical safety and RoHS environmental directives.
• Multi-Industry Versatility
  - Protects motors in automotive, robotics, medical devices, and HVAC equipment.

Electrical Characteristics:

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Application

Nanjing Haichuan Electronic Co., Ltd., located in Nanjing Luhe Economic Development Zone, is a national high-tech enterprise specializing in the production of high-end motor protectors, overcurrent protectors, thermostats, thermal protectors, temperature switches, temperature control switches, and temperature sensors. The company has passed the IATF16949 quality management system certification and has multiple independent patents. Its products have passed UL, TUV, CQC, and PSE international safety certification, The company adopts advanced automation equipment production technology, and its various series of products are widely used in fields such as glass lifter motors, wiper motors, seat motors, mixers, tubular motors, electric tools, battery packs, heating pads, new energy, etc. Haichuan embraces all rivers and pursues excellence. With professional technology, Haichuan is committed to providing reliable comprehensive solutions for overheating and overcurrent protection.