RCBO for single-phase final circuits
The Siemens 5SV9316-7FM20 is a compact residual-current circuit breaker with overcurrent protection (RCBO) rated Icn 6 kA, 1P+N, type A, 30 mA residual sensitivity, C-characteristic, In 20 A, Un AC 240 V. The reduced i²t design limits let-through energy, helping with downstream selectivity in distribution boards.
What the ratings mean for the panel
Type A residual-current detection means it trips on sinusoidal AC faults and pulsating DC faults up to 6 mA — common with single-phase rectified loads (switch-mode supplies, LED drivers, washing machines). The 30 mA sensitivity covers personnel protection (IEC 60364). C-characteristic (5–10× In magnetic trip) suits moderate inrush loads like small motors or capacitor banks. The 6 kA breaking capacity at 240 V AC is adequate for most residential and light commercial sub-distribution boards in a TN or TT system.
Lifecycle and sourcing
Lifecycle stage is listed as current. The part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.