Efficient Motor Thermal Overload Switch / Thermo Switch Protector For Floor Heating

Categories	KSD Thermal Switch
Voltage & Curren:	250V 16A
Switch type:	auto reset or manual reset
Contact type:	normally closed or normally open
Place of Origin:	China
Brand Name:	HENGHAO
Certification:	UL,CQC,VDE,ROHS
Model Number:	BW9700
MOQ:	1000PCS
Price:	0.19 / pieces
Packaging Details:	1000pcs per carton
Delivery Time:	7 days
Payment Terms:	TT, CASH.LC.WEST UNION
Supply Ability:	100000000pcs per month
Life Cycle:	100000 cycles

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Dongguan Heng Hao Electric Co., Ltd

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Product Details
Company Profile

Efficient Motor Thermal Overload Switch / Thermo Switch Protector For Floor Heating

The BW series thermal protector is designed for reliable overheating and overload protection in various electrical applications including floor heating systems.

BW Series Thermal Protector Product Image

Principle and Structure

The BW series thermal protector utilizes a geometrically designed bimetallic strip that directly senses heating current. Without auxiliary mechanisms, the bimetallic element rapidly changes state to automatically cut the circuit, providing reliable overheat and overload protection.

Applications

Widely applied in electric motors and electrical equipment including:

Electric blanket and hot wall systems
Washer motor, soybean milk machine motor
Fan motor, air conditioner motor
Fractional motor, direct current motor, AC brushless motor
Water pump, transformer, rectifier
Lighting systems, rechargeable batteries
Various electric heating appliances

Technical Specifications

Contact type: Normally closed and Normally open
Electrical rating: 10A/AC120V; 8A/AC250V; 10A/AC250V; 16A/AC250V
Circuit resistance: ≤50mΩ (Initial value)
Insulation resistance: ≥100mΩ
Action temperature range: 40~150℃
Case: Metal case and plastic case options
Life: ≥10,000 cycles

Dimensions

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 custom requirements
BW metal	20	8.0	4.1	16A/250V	AWG#22,AWG#18 high temperature silicone wire L1=L2=70mm, or custom requirements
BW plastic	20	8.0	4.0	5A/250V;10A/250V	AWG#22,AWG#18 high temperature silicone wire L1=L2=70mm, or custom requirements

Temperature Specifications

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℃

Competitive Advantages

Compact size for easy installation
Quick-acting bimetallic strip with fast response
Long service life exceeding 10,000 cycles
Prevents vacuum impregnation process leaks
Compatible replacement for SENSATA 17AM, 7AM and SEKI ST-22 models

Technical Drawings

BW Series Thermal Protector Technical Drawing 1

BW Series Thermal Protector Technical Drawing 2

Product Tags:

motor thermal protection switch

thermal overload protector switch

Efficient Motor Thermal Overload Switch / Thermo Switch Protector For Floor Heating

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