CHINT NXZ Series Automatic Transfer Switching Equipment,
is designe to ensure reliable dual-power transfer between grid or generator supplies in low-voltage distribution systems.
With rated operational voltage up to 415 V AC and current up to 630 A,
it provides automatic or manual transfer between normal and standby sources.
Built with PC-grade construction, intelligent controllers, and EMC protection,
the NXZ series guarantees continuous operation for industrial, commercial, and residential applications.
- Application: Automatic switching between two power supplies (grid–grid or grid–generator) for continuous power delivery
- Rated Operational Voltage (Ue): AC 400 / 415 V 50 Hz
- Rated Insulation Voltage (Ui): AC 800 V
- Rated Impulse Withstand Voltage (Uimp): 8 kV
- Rated Current Range: 80 A – 630 A
- Frame Currents: 125 A / 250 A / 630 A
- Poles: 3 P / 4 P options
- Utilization Category: AC-33B
- Rated Short-Circuit Making Capacity (Icm): 20 kA–25 kA depending on model
- Rated Conditional Short-Circuit Current (Iq): 100 kA / 50 kA
- Mechanical Endurance: 8 500 – 3 000 operations (depending on size)
- Electrical Endurance: 1 000 – 1 500 operations
- Operating Transfer Time: ≤ 1.2 s
- Contact Transfer Time: ≤ 0.6 s
- Control Voltage Range: 85 % – 110 % of Us
- Controller Supply Voltage: AC 230 / 240 V (50/60 Hz)
- Controller Options: A Type (standard) / B Type (intelligent)
- Transfer Modes:
- Automatic transfer and restore operation (grid-grid)
- non-automatic restore operation (grid-grid)
- restore operation (grid-generator)
- Adjustable Delays:
- Transfer delay: 0 – 300 s
- Return delay: 0 – 300 s
- Generator start/stop delay: 0 – 300 s
- Communication: RS-485 (Modbus protocol)
- Display Module: LED for A-type / LCD for B-type controller
- Protection Functions: Overvoltage, undervoltage, phase failure, and fire-control linkage
- Ambient Temperature: −5 °C to +40 °C (−25 °C to +70 °C with temperature compensation)
- Altitude: ≤ 2000 m (derating above this limit)
