The Siemens 5SV3448-6 is a 4-pole residual current circuit breaker (RCCB) from the 5SV3 family, rated 100 A with a 100 mA trip sensitivity, Type A, for 400 V AC line-to-line systems. Type A detection means it responds to sinusoidal AC fault currents plus pulsating DC fault currents — the standard requirement for circuits feeding single-phase electronics, variable-speed drives, or switched-mode power supplies where pure AC-only (Type AC) devices would be blind to half-wave rectified leakage.
Sourcing and lifecycle
Listed as current-production (active) by Siemens. The product class is flagged as B — return restricted, meaning distribution is through Siemens-authorized partners; the part is sourced to order against an RFQ through our independent supply channel, with availability and current pricing confirmed at quote time.
Compliance and documentation
RoHS compliant since 02 June 2023, with REACH candidate-list duty-to-inform documentation available. Export control is AL: N / ECCN: EAR99 — no special licensing required for standard cross-border trade.