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Jiangsu ChangSheng Electric Appliance Co., Ltd

Good quality AC Thermal Protector for sales
Good quality AC Thermal Protector for sales
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BR-B2D AC Thermal Protector For Automotive Heating Pad , Bimetallic Disc Thermostats

China BR-B2D AC Thermal Protector For Automotive Heating Pad , Bimetallic Disc Thermostats supplier

Large Image :  BR-B2D AC Thermal Protector For Automotive Heating Pad , Bimetallic Disc Thermostats

Product Details:

Place of Origin: China
Brand Name: DESHENG
Certification: UL VDE CE CQC
Model Number: BR-B2D

Payment & Shipping Terms:

Minimum Order Quantity: 1000pcs
Packaging Details: 5000pcs per package
Delivery Time: 10-15 days on order date
Payment Terms: T/T L/C D/P
Supply Ability: 3,000,000pcs/month
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Detailed Product Description
Product Name: BR-B2D AC Thermal Protector Certifications: UL VDE CE CQC

Adjustable capillary thermostat. Manual Reset Heat-Breaker for Electric Oven,Fried Pan etc.
Capillary thermostat working principle:
The capillary thermostat operates on the principle of fluid expansion. A temperature change in a fluid filled sensing system consisting of probe (also called bulb), capillary and diaphragm capsule, produces a volume change. The resulting movement of the diaphragm acts through a mechanism to operate the micro switch. i.e a single pole, single throw normally closed circuit breaks (opens) on rise of temperature.

  • Rated voltage and current: 250V AC, 16A
  • Designed temperature: -35°C to 350°C 
  • Cycles life : 100,000 cycles


Normally close, open on temperature rise, automatic reset, Earth Terminal Option

Working voltage and current

  16A @ 250 Vac

Ø Phial  diameter

3/6 mm

Cycles life

100,000 cycles

Open temperature

-35°C to 350°C  

Temperature Tolerance

±5°C, ±7°C, ±10°C, ±12°C

Differential Temperature tolerance

±3°C, ±4°C, ±5°C,±6°C

Contact resistance

≤100 m  

Capillary length

300~ 3000 mm; other lengths available upon request

Body temperature

T120 / T150 

Faston Terminal Connections

6,3x0,8 mm DIN46244

Contact Closure Resistance:


Insulation Resistance


Speed of response


.Min. electric current



TypeOperation Temperature (° C )Switch formMax Temp of Sensor (° C )Capillary tube (mm)Fill in
WQS-5050± 3Manual ResetSPST350100Liquid
WQS-120120 ±6Manual ResetSPST400300Liquid
WQS-240240 ± 20Manual ResetSPST400300Liquid
WQS-260260 ± 20Manual ResetSPST400350Liquid
WQS-300300 ± 155Manual ResetSPST600400Liquid

WQS-I series bulb & capillary thermostats are factory calibrated to a predetermined temperature range. This design offers a changeover thermal switch and an optional auxiliary switch that is useful for activation of an alarm or cooling fan. The principles of operation allow this design to be surprisingly cost effective and a leading choice for use in many applications where precision sensing is required while remaining on a tight budget. When temperature rises, the internal fluid located within the bulb expands through a capillary tube to an expandable diaphragm that is configured within the remote thermostat body. This diaphragm assembly activates the electrical contacts at the calibrated temperature set point. The WY-I series is available with a front auxiliary switch as optional.
■ - 10 / +16 Refrigeration
■ -35 / +35 Fridge
■ 0 / 40 Ambient
■ 0 / 85 Boliers / Water heaters
■ 0 / 93 Dishwashers
■ 30 / 110 Bain Marie
■ 60 / 200 Deep-fryer
■ 50 / 250 Oven
■ 50 / 300 Oven
■ Other ranges upon request
Competitive Advantage:

1. VDE CE CQC Approved.

2. A variety of coating configuration and shell materials are available according to different usages

3. RoHs (2002/95/EC Directive) compliant

4. Customized adjuster rod lengths and requirements are accepted

5. To supply adjustable knob, bezel and mounting screws

6. Adjustable temperature with positive contact separation

7. Mounting bushings/fittings and various sealing bushings are available

8. SPST or SPDT contact configuration

9. Durable stainless steel or copper construction



BR-B2D AC Thermal Protector For Automotive Heating Pad , Bimetallic Disc Thermostats

Contact Details
Jiangsu ChangSheng Electric Appliance Co., Ltd

Contact Person: Ms zhang

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