The dual-power switching device is suitable for dual-power supply systems with AC 50Hz and rated voltage of 400V, and is used to protect automatic switching, over-current, short circuit, over-voltage, and under-voltage of dual-power supply system. This product achieves the reliable conversion of dual circuit power supply on one device, characterized by small size, low weight, smaller investment, and easy installation. This product is designed to ensure complete isolation of high-voltage power supply of two circuits, and adopts a perfect and reliable mechanical and electrical interlocking, which has very high safety and reliability. This product is suitable for dual-power users who have high requirements for power supply reliability and safety, and serves as a control and protection device for dual-power supply systems.
Main structural features
- Its main electrical performance are in full compliance with IEC60439-1 and GB7251.12
- The main receiving switch has instantaneous trip protection and thermal magnetic trip protection. In order to cooperate with the switches of next level, instantaneous protection is cancelled to avoid super tripping, and it also has self-switching, manuaL operation, and automatic switching functions.
- The main switch of the feed circuit has instantaneous trip protection and thermal magnetic trip protection, and leakage
protection can be added when requested by the user. - The motor control circuit has short-circuit instantaneous, overload, under-voltage release, and phase protection.
Technical parameters
- Rated working voltage: AC380V
- Rated insulation voltage: 500V
- Rated voltage of auxiliary circuit: AC220, 380
- Rated frequency: 50Hz
- Rated current:400A
- Breaking capacity of main switch: 10kA
- Type of main incoming switch: dual-power switch CB level, PC level
- The motor control circuit has short-circuit instantaneous, overload,under-voltage release, and phase protection.
