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Normally Closed / Open Motor Thermal Switch Metal / Plastic Case Available thermal protector

Categories Thermal Protection Switch
Place of Origin: China
Brand Name: HENG HAO
Certification: UL CQC VDE
Model Number: BW
MOQ: 1000pcs
Price: US$0.165 per pc
Packaging Details: 10000 pcs per carton
Delivery Time: 7 days
Payment Terms: TT LC
Supply Ability: 1000000000PCS PER MONTH
Vol.&Current: DC-24V max 10A; AC-125V max 8A; AC-250V max 16A
life times: 10000 times
temperature range: 30-150C
Certificate: UL CQC TUV KC ROHS
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Normally Closed / Open Motor Thermal Switch Metal / Plastic Case Available thermal protector

BW series thermostat / KSD9700 thermal protector / BW9700 temperature protector

  1. H20,H21 series thermostat’s Principle and structure

H20,H21serial universal and enhanced protectors with large metal casing are composed of the thermal conductive metal casing, bimetallic parts welded with silver alloy contact point, conductive bracket, insulation fixation stand, fixed contact strip and heat resistance cable. In case of abnormal operation, along with the increase of the environment temperature to the set value, the bimetallic parts perform quick action, open the contact point, and disconnect the circuit. When the device is cooled to the temperature for safe operation, the contact point will automatically closes and recover normal operation.

  1. H20,H21series thermal protector’s Specification
Electrical RatingDC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 16A
Open temperature(30~150)±5°C; 5°C a step
Reset temperature2/3 of the action temperature with tolerance of ±15°C. Reset temperature can also be provided according to customers' requirement.
Life times10000 times
Contact Closure resistance:≤50mΩ
Insulation resistance:≥100mΩ
Electric strength:
  1. AC1500V/1min free from phenomena of break down and flashover.
UL File noE487478
CQC certificate noCQC16002142880
TUV certificate noB160592241002

  1. H20,H21series thermal protector’s Dimension
ModelCaseLength(mm)width(mm)High(mm)Vol.&CurrentLead wire
H20Plastic18.584DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 10A

#20 3135, end 5mm

half tripping, length is 70mm, or according to customer’s require

H21Metal18.57.33.8
H21Metal2084AC250V 20A#16 3135
BH-A1DMetal156.63.2DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V

#20 3135, #22 3266,#22 3135, end 5mm

half tripping, length is 70mm, or according to customer’s require

BH-B2DPlastic157.13.8
BH-TB02B-B8DPlastic155.22.4DC-12V max 4A; DC-24V max 3A; AC-125V max 3A; AC-250V max 2A3266-AWG24#, 3135-AWG24# or nickel strip normally, length is 70 mm or according to customer’s require

  1. H20,H21series temperature protector’s Application

H20,H21series is applicable to chargeable battery, ballast, massager, micro motor, transformer, electric tools, heat electric appliance and instrument etc.


The product UL,CQC,TUV and RoHS certification approval.

Quality Normally Closed / Open Motor Thermal Switch Metal / Plastic Case Available thermal protector for sale
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