From 16 A to 800 A; Size A, B, C, D, E and F. Applications and functions Incoming and outgoing function in distribution systems Switching and protection devices for motors, transformers and capacitors Disconnect or units with features for stopping and switching off in an emergency mechanisms and terminal covers in conjunction with likeable rotary operating Available in the following versions: Power protection: the overload and short-circuit releases are designed for the protection of cables, leads and non-motor loads Motor protection: the overload and short-circuit releases are designed for optimized protection and direct-on-line starting of induction squirrel-cage motors. The circuit breakers for motor protection are susceptible to phase failure and feature an adjustable trip class Features Full range of accessories High breaking capacity from 25 kA to 100 kA Technical specifications Standard: IEC 60947-2 Number of poles: 3-pole, 4-pole N-pole current-carrying capacity for 4-pole MCCBs: 100% In Rated operating voltage Ue：400 V Rated insulating voltage Ui: 500 V, 690 V Rated frequency: 50/60 Hz Rated impulse withstand voltage Uimp: 6 kV