RCCB that holds takt time — 63 A, Type A, 500 mA trip
The Siemens SENTRON 5SV3746-6GV01 is a 4-pole residual current circuit breaker (RCCB) rated for 63 A continuous at 40 °C, with a 500 mA rated tripping fault current. It's a Type A design — catches sinusoidal AC and pulsating DC residual currents, which covers most modern electronics-fed loads like VFDs, switched-mode supplies, and single-phase rectifiers on the line. The 10 kA short-circuit current rating (SCCR) per IEC 61008-1 means it can safely interrupt fault currents up to that level without upstream cascading; the EN 60898 rating of 0.8 kA covers the conditional short-circuit withstand for domestic-style installations. Snaps onto DIN rail (REG) in any mounting position, depth is 70 mm, width 72 mm (4 MW). Silicon-free construction matters if this RCCB shares an enclosure with potting, conformal coating, or silicone-gasket applications — no risk of outgassing contamination on sensitive electronics.
Thermal derating — what the 63 A means at panel ambient
At 65 °C it derates to 57.35 A; at 70 °C to 48.8 A. Maximum permissible storage temperature is 75 °C, operating range -25 °C to 45 °C.
Active production — no LTB clock ticking
Lifecycle stage is marked current. This is not an NRND or phase-out line — no last-time-buy window to watch. The 5SV3746-6GV01 is a standard catalogue part in the SENTRON family, so BOM planners can freeze it without a replacement-watch.