The Siemens SENTRON 5SV9316-7FM16 is a 2-pole RCBO — a residual-current-operated circuit breaker with overcurrent protection, combining a 16 A thermal-magnetic trip (Type C characteristic) and a 30 mA residual-current device (Type A) in a single 18 mm-wide module (1 MW). It breaks fault currents up to 6 kA per EN 60898 and IEC 60947-2, which covers the majority of final-subcircuit fault levels in commercial and light-industrial panels. The 30 mA sensitivity and Type A waveform detection mean it responds to sinusoidal AC and pulsating DC residual currents — the standard choice for socket-outlet circuits and general-purpose final circuits where electronics or rectified loads may be present.
What the ratings mean for fit
The 16 A rated current (at 30 °C) and Type C characteristic (i1=1.0xIn, i2=1.2xIn) suit circuits with moderate inrush. The 30 mA Type A residual detects pulsating DC from switched-mode supplies. Temperature derating is specified: 16 A at 30 °C, 0.96 A at 40 °C, 0.94 A at 45 °C, 0.92 A at 50 °C, and 0.9 A at 55 °C. The derating curve is steep because the thermal trip element in a 1 MW-wide device has limited heat dissipation. For a panel with ambient above 40 °C, size the load current against the derated value, not the 30 °C nameplate rating.
Panel integration and compliance
The 18 mm width (1 modular unit) and 77 mm depth fit standard DIN-rail enclosures with 70 mm installation depth clearance. Mounting position is any orientation. Supply cord entry can be from top or bottom. The IP20 rating (with connected conductors in an installed distribution board) is typical for enclosed panel mounting — not for wet or outdoor locations. Halogen-free and silicon-free construction matters for high-reliability environments (marine, rail, process control) where outgassing from a fault could contaminate adjacent electronics or optical contacts. Compliance documentation: the device carries approvals per EN 60898 and IEC 60947-2 (both cited for the 6 kA rating). Overvoltage category III, pollution degree 2 — standard for fixed-installation distribution boards. The SENTRON series is RoHS and REACH compliant as a Siemens standard product line; specific declaration files are available from Siemens Industry Online Support.