CHINT NXU-I+II Low-Voltage Surge Protective Device (SPD),
provides reliable protection for electrical systems and connecte equipment against lightning strikes and transient over-voltages.
it is Designe in accordance with IEC/EN 61643-11, it combines Class I & II surge protection in a single compact unit.
The modular design with a replaceable protective module allows for easy maintenance without circuit disconnection, ensuring consistent system uptime and enhanced safety for residential, commercial, and industrial power networks.
- Compliant Standard: IEC/EN 61643-11
- Certifications: CE, RoHS, CAE, CB
- Protection Type: Combined Class I & II SPD
- Rated Frequency: 50/60 Hz
- Available Poles: 1P, 2P, 3P, 4P, 1P+N, 3P+N
- Protection Modes: L–PE, L–N, N–PE combinations
- Maximum Continuous Operating Voltage (Uc): 275 V / 385 V AC (255 V for N–PE lines)
- Maximum Impulse Current (Iimp, 10/350 μs): 12.5 kA (1P – 3P) / 25–50 kA (for N–PE and 3P+N versions)
- Nominal Discharge Current (In, 8/20 μs): 25–30 kA
- Maximum Discharge Current (Imax, 8/20 μs): 40–50 kA
- Voltage Protection Level (Up): 1.5 kV (275 V type) / 1.8 kV (385 V type)
- Fuse/Circuit Breaker (upstream): 160 A
- Indication: Green = Normal, Red = Fault
- Optional Remote Signal Contact: Available (F version)
- Remote Contact Capacity: AC 250 V / 0.5 A | DC 250 V / 0.1 A, 75 V / 0.5 A
- Terminal Size: 6–16 mm²
- Screw Dimension: M5
- Tightening Torque: 2.0 – 3.0 N·m
- Degree of Protection: IP20
- Mounting: 35 mm DIN rail (EN60715) with fast-clip device
- Operating Temperature: –40 °C ~ +70 °C
- Relative Humidity: ≤ 95 % @ 20 °C / ≤ 50 % @ 40 °C
- Altitude: ≤ 2000 m
- Installation Environment: Free from severe vibration and shock
- Dimensions (mm): Height 90.5 × Width 18 per pole × Depth 65.5
