(Instruction)
    BH-B型系列热保护器，广泛用于工业、家用电器的塑料电机及电气设备，防止因过流、过热而产生的非正常工作提供有效可靠的安全保护。外壳采用耐高温，热传导快的高强度PBT工程塑料制造，适用于塑封电机外置式安装及家用电器的安全保护。
BH-B series thermal protector are widely used in electric motors of industrial、household appliance & other electric equipment. The BH-B series can effectively and reliably guard against the damage caused by overflow and overheat. The shell is made from heat resistant and heat conductive PBT engineering plastic. The product is applicable to the externally installed plastic sealed motors and household electric appliance.

结构及保护原理(Configuration & principles)
    BH-B型系列热保护器是由导热塑料外壳，焊有银合金触点的双金属元件、导电支架、绝缘固定座、静触片及耐热导线等元件组成。电流通过有阻抗的双金属元件，遇非正常工作时，随电流增大或周围温度升高至设定温度值时，双金属元件迅速动作，打开触点，切断电路。当装置冷却到安全工作温度时，触点自动闭合，恢复正常工作状态。
BH-B series thermal protector is compised by heat conductive plastic shell, bimetal component welded silver alloy contact, current conductive frame, insulated fixing seat, static contant pad and heat resistant wires etc. When the current goes through the bimetal component with impedance, if the current increases or the environment temperature rises and the temperature reaches the preset value, the bimetal component will work and release the contact to shut off the circuit; and by contrast, if the device cools down to the temperature, the contact point will reset automatically.

结构图(Package Configuration)

应用范围(Appilications)
    BH-B型系列产品是对电流、温度双重敏感的热保护器件，广泛应用于塑封电机灯具、电池、真空清洗机、PC板以及变压器等一般电器的过流保护和温度控制。
BH-B series protectors are double sensitive to current and temperature. The series are widely used for overheat protection and temperature control in electric motors, lights, batteries, vacuum cleaners, PC boards, transformers & ballast etc.

额定动作温度对照表(According Table open temperature)

说明：复位温度为标准动作温度值的2/3,公差为±15℃，或由用户指定。
Instruction: Reseting temperature is 2/3 of standard opening temperature or specified by customers. it''s tolerance is 15℃. A-C曲线图( A-C Curve)
临界脱扣电流与周围温度曲线（选择保护温度时应同事考虑电流效应）
The critical current & ambient temperature curve(Note:the current will effect to the open temperature)