The S 400 series circuit breakers protect cables and lines from overload and short circuits in accordance with DIN VDE 0100-430 and DIN VDE 0100-530. They comply with the construction regulations DIN VDE 0641-11 or IEC/EN 60898-1, DIN VDE 0660-101 or IEC/EN 60947-2. Their patented terminal block ensures easy and secure connection and handling via a pressure plate. Conductor cross-sections of up to 35 mm² can be directly connected to the device through the terminal block with insulation in protection class IP20. The connection is made directly via the plug-in socket system, and the external conductor connection can be freely selected (L1, L2, or L3). The extensive range of accessories provides everything you need for your installation tasks. Numerous approvals make the S 400 suitable for global use. Each device undergoes three intensive tests for quality and performance before delivery.