Dongguan Heng Hao Electric Co., Ltd
| Payment Terms | Western Union, T/T, L/C |
| Packaging Details | carton 47*23*23cm |
| Voltage & Current | 250V 5A to 10A |
| Temperature range | 0°C to 150°C |
| Useing | motor and household electric appliances over heat protector |
| life time | 10000 times |
| size | 18.5*8*4mm for plastic 18.5*7.5*3.8mm for metal case |
| Brand Name | HENG HAO |
| Model Number | H20 for plastic cate H21 for metal case |
| Certification | UL TUV CQC ROHS |
| Place of Origin | DONGGUAN, MADE IN CHINA |
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Product Specification
| Payment Terms | Western Union, T/T, L/C | Packaging Details | carton 47*23*23cm |
| Voltage & Current | 250V 5A to 10A | Temperature range | 0°C to 150°C |
| Useing | motor and household electric appliances over heat protector | life time | 10000 times |
| size | 18.5*8*4mm for plastic 18.5*7.5*3.8mm for metal case | Brand Name | HENG HAO |
| Model Number | H20 for plastic cate H21 for metal case | Certification | UL TUV CQC ROHS |
| Place of Origin | DONGGUAN, MADE IN CHINA | ||
| High Light | resettable thermal cutoff switch ，thermal cut out switch | ||
Thermal motor protector BW9700 250v 5a to 10a 0C to 150C with UL TUV CQC certifiate
BW9700 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.
BW9700 series thermal protector’s Specification
a. Switch type: normally closed, normally opened.
b. Operating Voltage / Current: AC250V / 5A; AC125V / 8A
c. Operating Temperature: 40~150℃ (one step for every 5°C)
d. Standard Tolerance: ±3°C / ±5°C / ±7°C
e. Reset temperature: operating temperature decrease by 15-45°C
f. Contact Closure resistance: ≤50mΩ
g. Insulation resistance: ≥100mΩ
h. Electric strength: AC1500V/1min free from phenomena of break down and flashover.
i. Service life: 10000 times
BW9700 series thermal protector’s Dimension
| Model | Case | Length | width | High | Lead wire |
| H20 | Plastic | 18.5 | 8 | 4 | #22 3266 white, or according client’ reques |
| H21 | Metal | 18.5 | 7.3 | 3.8 | #20 3135 red, or according client’ request |
BW9700 series 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.
UL E487478
TUV B160592241002 Rev.01
CQC 16002142880
CQC 16002142881
BW9700 series thermal protector's open and reset temperature sheet
| CODE | Open temperature | reset temperature | Code | Open temperature | Reset temperature |
| 40 | 40±5℃ | ≥30℃ | 105 | 105±5℃ | 70±12℃ |
| 45 | 45±5℃ | ≥30℃ | 110 | 110±5℃ | 75±12℃ |
| 50 | 50±5℃ | ≥30℃ | 115 | 115±5℃ | 80±12℃ |
| 55 | 55±5℃ | ≥30℃ | 120 | 120±5℃ | 85±12℃ |
| 60 | 60±5℃ | 40±10℃ | 125 | 125±5℃ | 90±12℃ |
| 65 | 65±5℃ | 45±10℃ | 130 | 130±5℃ | 95±12℃ |
| 70 | 70±5℃ | 50±10℃ | 135 | 135±5℃ | 100±12℃ |
| 75 | 75±5℃ | 55±10℃ | 140 | 140±5℃ | 105±12℃ |
| 80 | 80±5℃ | 60±10℃ | 145 | 145±5℃ | 110±12℃ |
| 85 | 85±5℃ | 65±10℃ | 150 | 150±5℃ | 115±12℃ |
| 90 | 90±5℃ | 70±10℃ | 155 | 155±5℃ | 120±12℃ |
| 95 | 95±5℃ | 75±10℃ | 160 | 160±5℃ | 125±12℃ |
| 100 | 100±5℃ | 80±10℃ | special temperature range according to client request | ||
BW9700 series temperature protector's drawing
Company Details
Business Type:
Manufacturer,Importer,Exporter
Year Established:
2011
Total Annual:
1000000-5000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Dong Heng Hao Electric Co., Ltd is located in Dongguan City, Guangdong Province with very convenient transportation and favorable Geographic location. We are specialized in developing and producing temperature controllers, thermostat, thermal protectors , temperature switch, temperature... Dong Heng Hao Electric Co., Ltd is located in Dongguan City, Guangdong Province with very convenient transportation and favorable Geographic location. We are specialized in developing and producing temperature controllers, thermostat, thermal protectors , temperature switch, temperature...
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