The Siemens 5SV3617-6 is a 2-pole instantaneous RCCB from the SENTRON family, rated 80 A with a 300 mA type A residual operating current for 230/400 V AC 50 Hz systems. It is designed to snap onto a standard DIN rail (REG) and occupies 2 modular width units (36 mm) with a 70 mm installation depth. The 10 kA rated short-circuit current rating (SCCR) means it safely interrupts fault currents up to that level without upstream damage, and the IP20 protection suits enclosed distribution boards.
DIN-rail fit and panel integration
This RCCB clips onto a 35 mm DIN rail (REG) and fits any mounting position. The 70 mm depth matches standard distribution board clearances, and the 60 mm grid spacing aligns with typical modular panel layouts. Top or bottom supply feed is allowed, and supplementary devices can be installed on the product extension.
What the ratings mean for the buyer
The 80 A rating governs continuous load capacity — sized for main incomer or heavy sub-feed duty on a 230/400 V three-phase system. The 300 mA type A residual detects pulsating DC fault currents (common from rectifiers, VFDs, and electronic loads) as well as sinusoidal AC, so it fits mixed-load panels where standard AC-type RCCBs might not trip. Being instantaneous (no short-time delay), it provides fast disconnection for personnel protection but must be coordinated with downstream selectivity if used as a main switch. The 10 kA SCCR (per IEC 61008-1) matches typical residential and light commercial fault levels; verify against available fault current at the point of installation.