Circuit breaker
1. MCB (Miniature Circuit Breaker): A small circuit breaker used for low current circuit breaker protection.
2. MCCB (Molded Case Circuit Breaker): A molded case circuit breaker used for high current circuit breaker protection.
3. ACB (Air Circuit Breaker): An air circuit breaker used for protecting indoor high-voltage systems.
4. VCB (Vacuum Circuit Breaker): A vacuum circuit breaker used for the protection of medium and low voltage systems.
Contactor
1. AC (Air Conditioner): Contactor for air conditioning, commonly used to control the air conditioning circulation system.
2. CJX (CJX2, CJX4): AC contactor, commonly used for controlling power control circuits and high-power operating electrical appliances.
3. LC1D (LC1D09, LC1D12, LC1D18, LC1D25, LC1D32, LC1D40, LC1D50, LC1D65): AC contactor commonly used for controlling three-phase AC motor controllers and high-power control appliances.
4. CJT (CJX1): DC contactor, commonly used for controlling DC motor controllers and high-power control appliances.
Thermal relay
1. TH (Thermal Overload Relay): A thermal overload relay used for overload protection in motor circuits.
2. LR (LRD, LRK, LRP): Thermal relay for electric motors, used for overload protection and reverse phase sequence protection in motor circuits.
3. LRD (LRK): Thermal relay for electric motors, used for overload protection and reverse phase sequence protection in motor circuits.
Other components
1. F (Fuse): A fuse used to prevent fires or damage to electrical equipment in the event of circuit overload.
2. SPD (Surge Protective Device): A surge protector used to protect electrical equipment from the effects of electromagnetic surges and lightning strikes.