Dongguan Heng Hao Electric Co., Ltd
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Temperature Control Switch Thermostat / Thermal Protector For Transformer

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Dongguan Heng Hao Electric Co., Ltd
[China]

Address
No.9, five lane, Shangchegang, Shangtang road, Gekeng, Hengli Town, Dongguan City, Guangdong, China Dongguan Guangdong
Phone
86-0769-82657123
Contact name
Li

Quick Information

  • Brand Name: HENGHAO
  • Place of Origin: China
  • Model Number : BW9700

Description

thermal protector for transformer

 

 

BW series thermal protector’s Principle and structure
BW series thermal protector is to use a certain geometry of bimetallic strip, without auxiliary institutions, only by bimetallic strip their own sense of mild heating current, rapid changes in the state of bimetallic element, direct drive contact automatic cutting and processing circuit, overheat protection, overload protection.

BW series thermal protector’s application
It is widely applied in Electric motors and electrical equipment as electric blanket, hot wall, washer motor, soybean milk machine motor, Fan motor, air condition motor, fractional motor, direct current motor, AC brushless motor, water pump, transformer, rectifier, lighting, rechargeable battery,electric heating appliance etc.

BW series thermal protector's specification
1. Contact’s type: Normally closed and Normally open
2. Electrical rating: 10A/AC120V; 8A/AC250V; 10A/AC250V; 16A/AC250V
3. Circuit resistance: ≤50mΩ (Initial value)
4. Insulation resistance: ≥100mΩ
5. Action temperature range: 40~150
6. Case: metal case and plastic case
7. Life: ≥10,000 times
8. Size:

Model L(mm) W(mm) H(mm) Electrical rating Lead wire (mm)
BW metal 20 7.5 3.8 5A/250V;10A/250V AWG#22,AWG#18 high temperature silicone wire L1=L2=70mm, or according to customer’s requirement.
20 8.0 4.1 16A/250V
BW plastic 20 8.0 4.0 5A/250V;10A/250V

9. Open temperature and reset temperature sheet
 

Code Open temp. Reset temp. Code Open temp. Reset temp.
40 40±5 ≥30 100 100±5 70±10
45 45±5 ≥30 105 105±5 70±12
50 50±5 ≥30 110 110±5 75±12
55 55±5 ≥30 115 115±5 80±12
60 60±5 40±10 120 120±5 85±12
65 65±5 45±10 125 125±5 90±12
70 70±5 50±10 130 130±5 95±12
75 75±5 55±10 135 135±5 100±12
80 80±5 60±10 140 140±5 105±12
85 85±5 65±10 145 145±5 110±12
90 90±5 70±10 150 150±5 115±12
95 95±5 75±10      


BW Thermal protector’s competitive advantage
1. Small size and easy installation
2. Quick bimetallic strip, fast reaction
3. The life time high than 10,000 times
4. Prevention again leak of vacuum impregnation process
5. Replacer of SENSATA 17AM 7AM, SEKI ST-22 etc.
BW series’drawing


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  • Temperature Control Switch Thermostat / Thermal Protector For Transformer image

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