What this RCCB does on the line
The Siemens SENTRON 5SV5416-0 is a 2-pole residual current operated circuit breaker (RCCB), Type AC, rated 63 A with a 100 mA trip threshold. It operates on 230 V AC at 50 Hz, with a short-circuit current rating of 6 kA. The instantaneous design means no intentional delay — it trips as soon as the residual current exceeds 100 mA, which is the standard choice for general-purpose protection against sinusoidal AC fault currents in residential and light commercial panels.
DIN rail fit and panel integration
Mounts on standard DIN rail (REG) per, occupying 2 modular width units (36 mm wide). Depth is 70 mm — the same as the installation depth, so no extra clearance needed behind the rail. Mounting position is unrestricted (any orientation). Supply can enter from top or bottom. The IP20 rating applies when installed in a distribution board with conductors connected — standard for enclosed panel use.
Ratings and what they mean for selection
Rated 63 A at both 40 °C and at AC — no derating needed up to that ambient. The 6 kA SCCR (IEC 61008-1 / EN 60898) is the maximum prospective fault current the device can safely interrupt. The 100 mA sensitivity is higher than the typical 30 mA for personal shock protection; it's used where the goal is fire protection or equipment protection on circuits with higher natural leakage. The I²t let-through of 110,000 A²s and peak let-through current of 7,100 A are the energy and current the RCCB allows downstream during a fault — useful for coordinating with downstream MCBs. Overvoltage category III means it's rated for fixed installation downstream of the main distribution board.