8AM Bimetal Thermal Protector & Motor Overload Protector

An ” HC18 / 8AM motor bimetal thermal protector” refers to a specific type of thermal overload protector, typically manufactured by China YAXUN , designed to protect an oil pump motor from overheating by automatically cutting off power to the motor when its temperature reaches a critical level; the “8AM” designation signifies a particular model within YAXUN’s line of motor thermal protectors, often used in applications like automotive oil pumps, motor, submersible pumps, high-pressure cleaners, oil pump motors, large wiper motors, washing machines, vacuum cleaners, ballasts, transformers due to their compact size and fast response time.

Key points about an 8AM oil pump motor thermal protector:
Function:
HC18 / 8AM series bimetall protector is an overheat protection element that has both overtemperature protection and precise control of current overload. It can effectively prevent Damage caused by excessive current and high temperature to high-power motors, transformers, etc.

[Temperature]: 80℃-180℃

[Features]: Large electrical capacity, long life and high reliability; Very precise tripping time to prevent motor overheating; has dual functions of induction current and temperature
When the motor gets too hot, the thermal protector’s internal bimetallic disc bends, breaking the electrical circuit and temporarily stopping the motor to prevent damage from excessive heat.

8AM series bimetall protector switch

8AM series bimetall protector switch installation dimensions

Benefits:
Overheat protection: Prevents motor burnout by automatically tripping when temperature exceeds a preset limit.
Reliable reset: Most 8AM protectors are manually resettable, allowing the motor to restart once the temperature cools down.
Compact size: Suitable for tight spaces within an oil pump motor assembly.

1. Small size, suitable for installation requirements of micro motors;
2. Provide the most reliable safety protection when the motor is blocked;
3. The combination of bimetallic strip and heating wire has fast tripping;
4. Very accurate tripping time to prevent the motor from overheating;
5. Possessing the dual performance of induction current and temperature;
6. Each part strictly implements the European ROHS environmental protection standards;
7. There are many types of terminals for flexible selection;
8. Specific specifications or riveting services can be made according to customer requirements.

Electrical specifications: 25amps/15 volts DC;  15amps/30 volts DC;

Technical parameters
Using temperature range: 50℃- 180℃, any temperature within the range can be provided according to customer requirements;
Temperature tolerance: ±5℃, ±8℃;
Select control overload current trip range: 1~25A;
Trip time: 4~10s;

Application range:
Power tools, mixers; submersible pumps; high-pressure cleaners; oil pump motors; large wiper motors; washing machines; vacuum cleaners; ballasts; transformers.