Key Features
The 2CTB815710R4000 is an ABB OVR T1-T2 Surge Protective Device (SPD) designed for Type 1+2 protection against lightning currents and surge voltages in low-voltage consumer systems, tested according to IEC 61643-11. It supports 4 poles for TN-S or IT networks with a nominal system voltage of 400/690V AC and a maximum continuous operating voltage (Uc) of 440V L-PE. It handles a nominal discharge current (In) of 20 kA and a maximum impulse current (Iimp) of 12.5 kA (10/350µs).