SB MAGNETIC STARTER
Classification：
Contactor&Thermal relay
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keyword：
SB MAGNETIC STARTER
Application
Magnetic starter
1. The magnetic starter is a combined control electrical appliance, which is mainly composed of AC contactor and thermal relay. It can be
The operation of the button controls the start and stop of small and medium-sized three-phase squirrel cage asynchronous motor, which has reversible and irreversible structures.
2. The magnetic starter itself can realize voltage loss protection and overload protection. In order to achieve short circuit protection, additional fuses are required. starter
A knife switch for isolation shall be installed in front of the.
3. The magnetic starter is composed of steel stamped shell, steel base plate, AC contactor, thermal relay and corresponding wiring
Start stop button switch shall be equipped and manual signal cable shall be correctly connected. The metal shell and support of the magnetic starter shall be
Protective neutral connection or grounding measures.
4. Working principle of magnetic starter
Press the start button, the coil of AC contactor installed in the magnetic starter is powered on, the armature drives the contact group to close, and the motor is powered on
Source, while self-locking through auxiliary contacts. Press the stop button, the coil of the internal AC contactor loses power, the contact is disconnected, and the motor is cut off
Machine power and unlock.
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