Low-voltage electrical appliances are diverse and can be classified in many ways.
1. By operating method:
(1) Manual electrical appliances – electrical appliances that rely on external force for direct operation, such as knife switches and push-button switches.
(2) Automatic electrical appliances – electrical appliances that operate automatically based on commands or changes in physical quantities, such as contactors and relays.
2. By application:
(1) Low-voltage control electrical appliances – mainly used for control in low-voltage power distribution systems and power equipment, such as knife switches and low-voltage circuit breakers.
(2) Low-voltage protection electrical appliances – mainly used for protection in low-voltage power distribution systems and power equipment, such as fuses and thermal relays.
3. By type:
Knife switches, knife-type changeover switches, fuses, low-voltage circuit breakers, contactors, relays, master control appliances, and automatic switches, etc.
