CHINT NXU-II G Low-Voltage Surge Protective Device (SPD)

CHINT NXU-II G Low-Voltage Surge Protective Device (SPD),
is designe to protect electrical systems and connecte equipment from lightning strikes and transient overvoltages.
Built for 230/400V AC systems, it supports 1P to 4P configurations and operates reliably in TN-S, TN-C, TT,
and IT grounding systems. Featuring a maximum discharge current up to 65kA, removable protection modules,
and visual fault indicators, the NXU-II G ensures consistent system protection and simple maintenance in residential,
commercial, and industrial applications.

• Function: Protects electrical systems and loads from lightning and transient overvoltage
• Applicable Standards: IEC/EN 61643-11
• Rated Voltage (Un): 230/400V AC, 50/60Hz
• Maximum Continuous Operating Voltage (Uc): 275V, 320V, 385V, 440V
• Test Class: II (Type 2 SPD)
• Nominal Discharge Current (In): 20kA / 30kA
• Maximum Discharge Current (Imax): 40kA / 65kA (8/20µs waveform)
• Voltage Protection Level (Up): 1.5–2.2kV (depending on model)
• Applicable Grounding Systems: TN-S, TN-C, TT, IT
• Protection Modes: L-PE, L-N, N-PE, L-PEN
• Poles: 1P, 2P, 3P, 4P, 1P+N, 3P+N
• Auxiliary Contact: Optional (remote signaling, INO + INC, AC 250V / 0.5A)
• Design:
  • Composed of removable protective module and base for easy replacement
  • Visual indicator turns red when replacement is required
  • Remote control port available for monitoring
• Mounting: 35mm DIN rail
• Material: Flame-retardant plastic enclosure (UL94 V-0 rated)
• Dimensions (mm):
  • Height: 90.4 ± 0.3
  • Width: 18mm (1P), 36mm (2P), 54mm (3P), 72mm (4P)
• Certifications: CE, RoHS