HCET-A TB02 Bimetal Thermal Protection Switch | Auto-Reset Cutoff for Motor, Water Pump, Heating Machine & Fan Motor

HCET-A TB02 is a bimetallic thermal protection switch specially designed for high-load electromechanical equipment,

integrating temperature sensing, circuit cutting and automatic reset. The device senses the internal temperature of the equipment

by means of a precision bimetallic disc. When the motor, pump, heater or fan heats up abnormally due to overload or blockage,

the thermal protection switch will instantly trigger the circuit to be cut off, and then automatically reset after the temperature drops to

prevent the equipment from burning out.

Product feature:

• Bimetal thermal control core technology
  Adopting high-precision bimetallic disc (Snap-Action Disc), responding to the temperature range of 30℃~155℃, action accuracy ±3℃.
• Mechanical physical trigger, no risk of aging of electronic components, suitable for wet, vibration environment (such as water pumps, power tools)
• Protection Mechanism
  Thermal Protection Switch (resettable)
  Automatic power-off threshold: 35℃~150℃ (preset by equipment type)
  Cycle life: ≥30,000 times (25℃ environment test)
• Industrial-grade durable design
  High load capacity: 2.5A/250VAC, withstand instantaneous motor start current shock
• Versatile Adaptability
  Quick installation: two types of connection: plug terminal/lead wire
• Cross-industry applications:
  Motor/pump: plugging overheat protection
  Heating equipment: dry burning protection (e.g. water heaters, industrial heaters)
  Fans: Temperature-controlled power-off for bearing failure
  Power tools: lithium battery pack overcharge protection
• Safety and economy at the same time
  Automatic reset reduces downtime losses, reducing maintenance costs by 70% compared to traditional disposable fuses
  Contact material: silver alloy + nickel-plated layer, contact resistance ≤ 50mΩ, to avoid arc oxidation.

Electrical Characteristics:

Dimension size

Product detail

Application