产品用途 Product application
BW-B 系列热保护器是一种单刀单掷开关。通常其动作温度范围为 35℃-160℃，BW-B 系列热
保护器具有超小体积、感温速度快、动作灵敏、安全可靠、交直流特性好、寿命长等特点，
产品广泛应用于镍氢、镍铬、锂离子、锂聚合物等可充电电池组、电动工具、吸尘器、电加
热器具（电热毯、电磁炉、直发器、电加热棒等）、分马力电机、水泵、镇流器、变压器、
开关电源等产品。
The BW-B series thermal protector is a single pole single throw thermal protector.
Usually its operating temperature range is 35-160℃ BW-B series thermal protector
has ultra-small size fast temperature sensitivity sensitive action safe and
reliable good AC and DC characteristics long life and other characteristics
products are widely used in nickel-metal hydride nickel-chromium lithium ion
lithium polymer and other rechargeable battery packs power tools vacuum cleaners
electric heating apparatus (electric blanketsinduction cookers straights
electric heating rodsetc.) split-horse motor water pump ballast transformer
switching power supply and other products.
性能 Capabilities
3.1 额定交流电压 Rated AC voltage：250V；
额定直流电压 Rated DC voltage：24V；
额定电流/寿命 Rated current/lifetime (COSΦ=1.0)
AC 6A-6000cycles
DC 6A-10000cycles
3.2 动作特性: Performance
3.2.1 额定断开温度 35℃～160℃(详见附表)。
Rated operating temperature: 35℃～160℃(details as per attached list)
3.2.2 复位温度(详见附表)。
Reset temperature: (details as per attached list)
3.3 电气强度 Electric strength:
测试仪器为耐压测试仪 the test instrument is high voltage tester.
a.产品在断开时的引线之间应能承受 AC500V历时 1min 而无击穿闪络现象;
When the product is in the breaking state the lead wires should be able to withstand
AC500V lasting for 1min without breakdown or flash-over;
b.产品引线与绝缘外壳之间能承受 AC1500V历时 1min 而无击穿闪络现象。
The part between the lead wires and the case should be able to withstand AC500V
lasting for 1min without breakdown or flash-over;
3.4 绝缘电阻 Insulation resistance:
在正常条件下引线与绝缘外壳之间的绝缘电阻在100MΩ以上。(所用表计为DC500V兆欧表)
Under normal conditions the insulation resistance between leads (terminal) and case
should be more than 100MΩ measured by ohmmeter of DC500V.
3.5 接触电阻 Contact resistance
标准引线长度 55mm 产品的接触电阻应不大于 50mΩ。
The contact resistance of standard lead wire length 55mm products should be lower
than 50mΩ.
3.6 抗拉力试验 Tensile resistance test
产品的引线端应能承受大于或等于 30N 静拉力并保持 1 分钟导线不断裂或松动。
Terminal & leads should endure more than 30N axes direction pull lasting for 1 minute
without break or looseness.
3.7 耐高温试验 High temperature test
产品置于高于额定动作温度 20℃的空气环境中保持 16h，取出放置 2 小时后，检测其温度变
化不超过初始值的±5℃或±5%，取最大值。
Keep the thermal protector in an incubator which temp. is 20℃ higher than its rated
switching temperature for sixteen hours and test it two hours later after taking
out from the incubator while the temperature change does not exceed the initial
value of ± 5 ℃ or ± 5% returns the maximum value.
3.8 耐低温试验 Low temperature resistance test
产品置于-40℃空气环境中保持 2h，取出放置 2 小时后，检测其温度变化不超过初始值的±
5℃或±5%，取最大值。
Keep the thermal protector in a -40℃ incubator for ninety six hours and test it
two hours later after taking out from the incubator while the temperature change
does not exceed the initial value of ± 5 ℃ or ± 5% returns the maximum value.
3.9 抗振试验 Anti-Vibration test:
热保护器应能承受振幅 1.5mm频率变化 10～55Hz，扫描变化周期 3～5 次/min，振动方向 X、
Y、Z，每个方向各连续振动 2h 检测其温度变化不超过初始值的±5℃或±5%，取最大值。
Thermal protector should be able to withstand the amplitude 1.5mm frequency 10-
55Hz scanning change cycles of 3-5 times /min. The vibration direction X Y Z and
each direction vibrates on a continuous basis for 2 hours while the temperature
change does not exceed the initial value of ±5℃ or ±5% returns the maximum
value.
3.10 极限短路试验 Short-circuit limit test
产品在串接 RL1-15A 熔断器的电路中承受 200A 的极限短路电流时，应不引起包裹在保护器
上的棉花燃烧。
When the thermal protector is in series connection with RL1-15A fuse to withstand
short circuit current limit of 200A it should not cause the cotton burned which
is wrapped on the thermal protector.
3.11 跌落试验 Drop test
将产品从 700mm 的高度自由跌落在水泥平面或其它坚固的水平面上，产品的温度性能不应
超过初始值的±5℃或±5%℃(两者值取最大值)。
Let the thermal protector fall free in the cement or other solid surface from a height
of 700mm its temperature performance should not exceed the initial value of ± 5 ℃
or ± 5% ℃ (take the larger from the two values).
4
产品断开弹跳时间 Product disconnection bounce time
Bounce Time＜1ms.
