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Quick Details

  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: HANCONG
  • Model Number: B2D
  • Feature: Plastic shell, Snap action, normal closed, auto reset
  • Contact rating: 10A/125VAC; 5A/250VAC; 10A/24VDC
  • Thermal switch dimension: 15X7.3X3.9mm / 18X8.0X4.0mm
  • Open temperature: 50C to 150C, in 5C increasement
  • Cable: AWG20, 70mm long, special requests accepted
  • Advantage01: Good price and quality, long life, accurate temperature control
  • Advantage02: Large production capacity, prompt delivery
  • Certificates: UL, VDE, CCC, CB, ROHS

Packaging & Delivery

Packaging Details Packaging Details: B2D Plastic case Thermal protector, thermal switch, bimetal thermal switch package:100pcs per small clear bag, 5000pcs per carton. Carton sie:32X30X25CM N.W/G.W.:12.5Kg/13.5Kg
Product Description


BW-B2D  bimetal thermostat,motor thermal protector,bimetal thermal switch,motor thermal protector,motor protector, resettable thermal fuse, bimetal switch,lighting thermal protector,thermal protector for fan motor,bimetal thermal protector,thermal overload protector,thermal overload protector switch, overload switch, thermal cutoff switch, thermal cutout switch, motor protection thermal switch, thermal cutoff, thermal cutoff fuse, thermal cutoff switch, thermal cutout switch, bimetal temperature switch, bimetal thermostat switch,


Plastic shell, Snap action thermal protector , automatic reset type with UL,VDE, CB, CCC , Rohs compliant


Work principle:

BW-A1D thermal protector is a temperature automatic response devide and is connected in series to the winding of motor. The contacts open on temperature rise and reset after the temperature drops down.



B2D series thermal protectors are devices for protecting against overload and over temperature. They are usually used for AC 220v /50Hz one phase motors to protect motor from over temperature caused by unusual state such as overload, blocked up. They are also used for protecting against over temperature & temperature control in lighting appliance, heater, fluorescent ballast, IC etc.


Main features:

Snap action, normal closed, auto reset

Contact rating: 10A/125VAC; 6A/250VAC; 10A/24VDC 
Thermal switch dimension: 15X7.3X3.9mm / 18X8.0X4.0mm

Open Temperature: 50C to 155C,  in 5C increasement

Tolerance for open temperature: +/-5C

Cable:Stardard:AWG20 silicon cable or AWG#22 UL3326 PE cable, 70mm long, special requests accepted
Approval: UL,VDE, CQC,CB, Rohs compliant

Advantage:Good quality, good price, prompt delivery guaranteed.

Product picture:


Cutoff temperature table:(reset temperature for reference)

ModelOpen tempertureReset tempertureModelOpen tempertureReset temperture


Dimension: with leadwire and with insulation sleeve, the cable and length can be made according to customer's request:

15X6.5X3.1mm with 70mm cable, special requests for the cable acceptable


Ultimate Tripping Current Vs Ambient Temperature ( for reference only)


There is also other models for your choices, pls click here:






Product Process



Packaging & shipping




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