HCET M4 KSD301 Thermal Cut off Switch Screw Aluminum Cu Vertical Thermostat Thermal Protector for LED Lighting

The HCET KSD301 is a bimetallic thermal cutoff switch designed for precise temperature control in demanding applications.

It utilizes a bimetallic mechanism that quickly breaks the circuit when the temperature exceeds a preset threshold,

which can be from -10°C to 280°C, ensuring that equipment is protected from overheating. With a corrosion-resistant

brass housing and silver alloy contacts, this vertically mounted thermostat features ultra-low contact resistance (<50mΩ)

and meets UL, CE, and RoHS standards. Ideal for motors, compressors, HVAC systems, and industrial machinery,

it features a screw terminal design for safe installation in space-constrained environments.

Product feature:

• Fail-Safe Overload Protection
  Dual-action snap disc ensures instant circuit break at ±5°C accuracy, preventing motor burnout and energy waste.
• Industrial-Grade Durability
  Aluminum-copper composite construction withstands 10,000+ cycles at 16A/250VAC, certified for continuous operation in -10°C to 280°C ambient temperatures.
• Global Compliance Ready
  Pre-certified to UL 60730, IEC 60691, and EN 60335-1, simplifying integration into US/EU markets for appliances and OEM equipment.
• Vertical Space Optimization
  Compact 15mm profile with M4 screw terminals allows vertical PCB mounting, ideal for motor end caps and tight industrial enclosures.
• Customizable Trip Settings
  Optional factory calibration from -10°C to 280°C (±5°C tolerance) with manual reset variants available for critical safety systems.

Electrical Characteristics:

Product detail

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.