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4-Pole B+C+D Class 100kA Surge Arresters Number of Poles 4 (3phase+neutral) Operating Voltage V(in)(L-L) 400V Operating Frequency 50/60 Hz Voltage Protection Level Up <1.2kV Voltage Protection Level Up (N) Up <1,5kV IEC Category Class I+II+III Rated voltage Un 230 V AC (230VAC – 320VAC) Arestornominal voltage Uc (L-N)320VAC , Uc (L-PE)320VAC, Uc(N-PE) 255VAC Nominal frequency Fn 50 Hz – 60 Hz Maximum discharge current In 50kA Maximum discharge current (N) In 100kA Rated discharge current Iimp 12,5kA Response Time (L-L), (L-N), (L-PE), (N-PE) ≤ 10ns Inlet Connection Screw Clamp No Output Connection Screw Thread: M5, Torque: 4,5Nm Multi-core and Single-Core conductor cross-section 2.5 mm2, 4 mm2 Standards/Regulations IEC 61643-11 2011 , IEC 61643-11 2012 Protection class IP20 Enclosure material White ABS, UL’94 V-0 Non-Flammability grade Standards for clearances and scattering distances DIN VDE 0110-1, IEC 60664-1 Direction of movement 3 L – N – PE Mounting type, Design DIN rail 35mm, Rail module Ambient temperature -50°C, +80°C Dimensions 50 x 75 x 60mm