• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: HANCONG
  • Model Number: BW-B2D; BW-B
  • Feature: Plastic case, Snap action, normal closed or normal open
  • Contact rating: 10A/125VAC; 5A/250VAC; 10A/24VDC
  • Thermal switch dimension: 15X7.2X3.8mm; 18X8.0X4.0mm
  • Open temperature: 50C to 155C, in 5C increasement
  • Cable: AWG22, 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
  • Item: bimetal thermostat-19

Packaging & Delivery

Packaging Details Packaging Details: BW Plastic case bimetal switch, bimetal temperature switch, bimetal thermostat switch package:100pcs per small clear bag, 5000pcs per carton. Carton sie:32X30X25CM N.W/G.W.:12.5Kg/13.5Kg
Delivery Time 1-2 weeks
Product Description


BW-B2D  Thermal protector, thermal switch, bimetal thermal switch ,  motor thermal protector,  thermal protector for fan motor, klixon type thermal protector, thermal overload protector , bimetal thermal protector, thermal protector for pump, thermal cutoff, thermal cutout, resettable thermal fuse, overload protector,  bimetal thermostat switch,  bimetal switch, bimetal temperature switch, bimetal thermostat switch


Plastic case, Snap action thermal protector , normal closed or normal open type, automatic reset type with UL,VDE, CB, CCC , Rohs compliant


Work principle:

BW-B 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.




BW-B 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:

BW-2B, BW-B  plastic case thermal protector NC or NO

Snap action, normal closed or normal open, auto reset

Contact rating: 10A/125VAC; 6A/250VAC; 10A/24VDC
Thermal switch dimension: 15X7.2X3.8mm; 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.


Cutoff temperature table:(reset temperature for reference)

ModelOpen tempertureReset tempertureModelOpen tempertureReset temperture
B2D -60℃60±5℃40±10℃B2D-115℃115±5℃75±15℃


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

15X7.2X3.8mm or 18X8.0X4.0mm 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 Picture





Product Process


Production Line:


Packaging & shipping


Goods ready to be delivery:



Storage Condition:

During the transport and storage, the packages can not be exposed to snows or rains, and should avoid strong force outside.  It shouId be stored in a dry and ventilative warehouse.


Customers' special requests accepted. Pls contact us for more



Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $47,000
Learn More