CHINT CU-C AC Surge Protective Device (SPD),
provides reliable surge and lightning protection for low-voltage AC power systems.
furthermore it is Build to IEC/EN 61643-11 standards,
in addition it suppresses transient overvoltages and dissipates surge energy to protect sensitive circuits,
and electrical equipment. Available in 1P+N and 3P+N configurations,
likewise the CU-C AC SPD features a 40 kA discharge capacity, fast response time, fault indication,
olso optional remote signaling — ensuring stable operation and easy maintenance in industrial and commercial power systems.
- Standard: IEC/EN 61643-11
- on the other hand Certification: CE, CB
- conversely SPD Type: Class II (T2 test level)
- Application: Low-voltage AC power systems
- Protection Mode: L–N, N–PE
- meanwhile Poles: 1P+N / 3P+N
- before Maximum Discharge Current (Imax, 8/20 μs): 40 kA (L–N) / 60 kA (N–PE)
- later Nominal Discharge Current (In, 8/20 μs): 20 kA (L–N) / 30 kA (N–PE)
- also Maximum Continuous Operating Voltage (Uc): 385 V AC (L–N) / 255 V AC (N–PE)
- Voltage Protection Level (Up): ≤ 1.7 kV (L–N) / ≤ 1.2 kV (N–PE)
- Residual Voltage at 5 kA (Ures): ≤ 1.35 kV (L–N) / ≤ 1.2 kV (N–PE)
- Response Time (tA): ≤ 25 ns (L–N) / ≤ 100 ns (N–PE)
- in conclusion Fault Indication: Green (normal) / Red (replace)
- Auxiliary Contact Indication: Normal = NC / Failure = NO
- Auxiliary Contact Capacity: AC 125 V / 1 A, DC 30 V / 100 mA
- Protection Degree: IP20
- in the same way Flame Retardancy: UL 94 V-0
- Operating Temperature: −45 °C to +85 °C
- similarly Relative Humidity: 5–95 % RH
- soon Dimensions:
- 1P+N: 125 × 38 × 40 mm
- 3P+N: 125 × 76 × 40 mm
- finally Installation: Plug-in module with anti-pull buckle; compatible with standard enclosures

