Series 5SM3, Type B SEQUENCE, 4-pole All-current-sensitive FI circuit breaker for detection of residual AC currents, pulsating and smooth residual DC currents Increased operating reliability in networks with capacitive impedances based on adapted actuation characteristic Switch handle and test button may be locked via handle lock Time-delayed disconnect function in the event of transient stray currents High current capacity Applications: Systems with consumers in which smooth residual DC currents may also occur Use in three-phase systems Voltage rating: 230 V / 400 VAC 50 → 60 Hz 240 V / 415 VAC Standards IEC / EN 61008-1, IEC / EN / 61543 Approvals VDE 0664 Part 10, VDE 0664 Part 100, VDE 0664 Part 30 Siemens FI circuit breaker