CHINT NU6-III Low-Voltage Surge Protective Device,
provides reliable protection for AC 230V single-phase power distribution systems against lightning strikes and transient overvoltage.
Featuring a compound design that combines a gas discharge tube and voltage-sensitive resistor,
it ensures fast response and high surge endurance. The plug-in replaceable module allows for easy maintenance,
while a visual indicator signals protection status. Compliant with IEC61643-1 and EN61643-11,
it’s ideal for residential, commercial, and industrial electrical networks.
- Function: Protects electrical systems and equipment from lightning and transient overvoltage
- Standard Compliance: IEC61643-1, EN61643-11
- Rated Voltage (Un): AC 230V, 50Hz
- Maximum Continuous Operating Voltage (Uc): 275V / 320V / 385V
- Nominal Impulse Voltage (Uoc, 1.2/50μs): 10kV
- Level of Protection (Up): 1.5kV
- Short-circuit Current (Isc, 8/20μs): 5kA
- Protection Mode:
- L–PE/N–PE (compound type: GDT + varistor)
- L–N/N–PE (compound type: GDT + varistor)
- Poles Available: 1P+N, 2P
- Auxiliary Contact (Optional):
- Configuration: INO + INC
- Rated Voltage: AC125V
- Rated Current: 3A
- Construction:
- Two-part design (base + removable protective module)
- Visual fault indicator for damaged modules
- No need to cut off circuits during module replacement
- Design Type: Compound Type with GDT + MOV protection components
- Mounting: 35mm DIN rail
- Dimensions (mm):
- Without remote port: 101.5(H) × 18(W) × 65.5(D)
- With remote port: 93(H) × 18(W) × 65.5(D)
- Connection Terminals: Screw terminals (torque 2.0 N·m)
- Protection Degree: IP20
- Material: Flame-retardant housing
- Installation Altitude: ≤2000m
