2.5 what are the specific categories and types of headphone sockets
Release time：2019-10-18 Clicks： Click
2.5 what are the categories and types of headphone sockets? What are the specific details? Let's give you a detailed introduction.
2.5 headphone socket is a very important electrical appliance in low-voltage distribution network and electric drive system, which integrates control and multiple protection functions. In addition to the contact and breaking circuit, it can also protect the short circuit, serious overload and undervoltage of the circuit or electrical equipment, and can also be used to start the motor infrequently.
1. According to the number of poles: single pole, two pole and three pole.
2. According to the protection form of headphone socket, it can be divided into electromagnetic release type, thermal release type, compound release type (commonly used) and no release type.
3. According to the full breaking time: general and fast (prior to the action of the tripping mechanism, the tripping time is within 0.02 s).
4. According to the earphone socket structure, it can be divided into: molded case type, frame type, current limiting type, DC fast type, deexcitation type and leakage protection type.
2.5 the earphone socket adopts a bimetal sheet connected in series with the circuit. The heat generated by the current during the overload will deform the bimetal sheet, thus tripping the circuit breaker. Compared with the fuse, the thermal protector has a significant advantage that it can reset after tripping. They can also be used as power on / off switches for protected devices.
With the increase of temperature, the tripping speed of thermal circuit breaker is accelerated, and tripping often occurs at a lower current level. This feature is often useful when the circuit breaker and the system are exposed to the same heat source.