HC25 Three-Phase High Current Thermal Cutoff Switch 25A/35A Motor Protection Device for Oil Pumps, Industrial Motors, Power Tools

The HC25 Series Three-Phase High Current Thermal Protector is engineered for heavy-duty applications requiring reliable over-temperature and over-current protection. Designed with a pure temperature-sensitive mechanism, this protector minimizes current interference and ensures ultra-low internal resistance (≤50mΩ) for energy-efficient operation in high-power systems.

It features epoxy-sealed construction to withstand harsh environments such as oil pumps, industrial motors (up to 35A), transformers, and electric vehicle charging systems. The precision-calibrated temperature range (70°C-160°C ±5°C) and vacuum varnished contacts guarantee stable performance in continuous duty cycles, making it the ideal safeguard against motor burnout in HVAC systems, agricultural equipment, and automated machinery.

Product feature:

• High-Current Capacity
  Supports 25A/35A three-phase loads with minimal voltage drop, perfect for 250V AC industrial motors and pumps.
• Precision Thermal Protection
  Pure bimetal technology with ±5°C accuracy prevents false tripping while protecting windings from overheating damage.
• Industrial-Grade Durability
  Epoxy-encapsulated design resists oil contamination, dust ingress, and vibration in oil extraction pumps and construction equipment.

Electrical Characteristics:

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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.