Shop for CHINT NU6-I+II Low-Voltage Surge Protective Device (SPD)

CHINT NU6-I+II Low-Voltage Surge Protective Device (SPD),
offers combined Type I and Type II protection, ensuring reliable surge and lightning defense for AC 230/400 V power systems.
furthermore it is Built to IEC/EN 61643-11 standards, it provides superior transient overvoltage suppression with a discharge capacity up to 50 kA.
moreover it is Designe for durability and ease of maintenance, the NU6-I+II features plug-in modules,
in addition aging and overheating protection, visual fault indication,
and finally optional remote alarm signaling—making it ideal for industrial and commercial distribution systems.

first Standard: IEC/EN 61643-11
second Certifications: CE, CB, RoHS, VDE
next SPD Type: Type I + Type II (Class I + II test)
then Application: Low-voltage power distribution and control systems (AC 50/60 Hz)
afterward Rated Operating Voltage (Ue): Single-phase 230 V / Three-phase 400 V
as a result Maximum Continuous Operating Voltage (Uc): 275 V / 385 V / 255 V
therefore Impulse Current (10/350 μs, Iimp): 12.5 kA (L–PE), 25/50 kA (N–PE)
but Maximum Discharge Current (8/20 μs, Imax): 50 kA (L–PE), 40/50 kA (N–PE)
and Nominal Discharge Current (8/20 μs, In): 25 kA (L–PE), 30/50 kA (N–PE)
also Voltage Protection Level (Up): ≤ 1.5 / 1.8 kV
Leakage Current (Ile @ 0.75U): < 50 μA/pole
Protection Modes: L–PE, N–PE, L–N
Remote Alarm Function: Optional (F-type with auxiliary contact)
Remote Contact Switching Capacity:
- AC 250 V / 1 A
- DC 250 V / 0.1 A, 125 V / 0.2 A, 75 V / 0.5 A
Cross-Section of Remote Signal Wire: ≤ 1.5 mm²
Wiring Range: 2.5–25 mm²
Recommended Wiring: Input ≥ 6 mm², Ground ≥ 10 mm²
Tightening Torque: 2.0 N·m
Mounting: TH35-7.5 DIN rail
Ambient Temperature Range: −5 °C to +40 °C
Pluggable Modules: Yes (replaceable cartridge design)
Dimensions:
- 1P: 18 mm
- 1P+N / 2P: 36 mm
- 3P: 54 mm
- 3P+N / 4P: 72 mm
meanwhile Recommended External Disconnector: Fuse 125 A gL/gG or NXSCB-I+II 12.5H
soon Protection Features: Aging and overheating protection, visual fault indicator
finally Installation Use Case: Lightning protection for main incoming panels and industrial cabinets

CHINT NU6-I+II Low-Voltage Surge Protective Device (SPD)

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CHINT NU6-I+II Low-Voltage Surge Protective Device (SPD)

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