Transient and Permanent Surge Protector IGA Acti9 Combi SPU 3P+N 25A

This Acti9 Combi SPU is a circuit breaker with integrated surge protection. It is a 3P+N with 1 protected pole and the rated current In is 25 A. It protects against atmospheric overvoltage: transient overvoltage flow to earth, while ensuring service continuity. The associated C60 circuit breaker provides protection against continuous overvoltage: overloads and short circuits. This combined SPU unit is compatible with the TT earthing system. It is mainly used in residential and small commercial sectors. Type 2 surge arresters are tested with an 8/20 μs impulse current wave. The maximum discharge current Imax is 20 kA. The nominal discharge current In is 5 kA. The maximum continuous operating voltage Uc in differential mode (between phase and neutral) is 340VAC. The maximum continuous operating voltage Uc in common mode is 260 VAC between neutral and earth. The surge protection level in differential mode (between phase and neutral) is less than or equal to 1.1 kV. The surge protection level in common mode is less than or equal to 1.5 kV between neutral and phase. The nominal service voltage Un is 400 VAC. The operating frequency is 50Hz or 60Hz. The dimensions are (W) 161mm x (H) 76mm x (D) 102mm. The width of the 9mm modules is 18. The weight is 0.98 kg. The protection rating is IP20 and IP40 in modular cabinets. The operational temperature is -25°C to 55°C.