NUR Surge Arrestor 1P 40kA 275V AC

Model: NSPD1 275V / NU1-C 275V
Type: Type 2 Surge Arrestor
Poles: 1P (use 2 units for 1-phase protection)

• Nominal Voltage (Uc): 275V AC

• Maximum Discharge Current (Imax): 40kA (8/20μs waveform)

• Nominal Discharge Current (In): 20kA

• Protection Mode: L–N (line-to-neutral); use 2 units for L–N–PE in single-phase systems

• Response Time: ≤25ns

• Indicator: Visual status window (green = operational, red = replace)

• Mounting: 35mm DIN rail (standard enclosure)

• Connection: Screw terminal, max 25mm² cable

• Housing Material: Flame-retardant thermoplastic, UL94-V0

• Operating Temperature: -40°C to +80°C

• Ingress Protection: IP20 (internal installation)

• Standards Compliance: IEC/EN 61643-11

• Application: Protects electrical installations and sensitive equipment from voltage surges caused by lightning or switching operations