Siemens SENTRON 5SL3016-7KL — Miniature Circuit Breaker, 1P+N, C-Curve, 4.5 kA
At 18 mm wide (one modular width unit) and 76 mm deep, it fits standard distribution boards without crowding adjacent ways. The IP20 rating applies with connected conductors, which is the norm for enclosed panel installations — not for wet or washdown environments. Pollution degree 2 (non-conductive dust only) is typical for clean, dry indoor panels. Ambient temperature range is -25 to 45 °C at up to 85% relative humidity, extending to 60 °C with derated humidity (43% rF). The storage and transport range is wider: -40 to 75 °C, which governs handling, not running.
Sourcing and Lifecycle — Current Production, No Obsolescence Concern
The product is designed for residential buildings and infrastructure (suitability for operation: residential buildings/infrastructure). Sealable (yes) — the toggle can be locked or sealed in the off position for lockout/tagout procedures.
Integration — DIN Rail Fit and Supplementary Devices
Installation depth is 70 mm, and overall depth is 76 mm — the extra 6 mm is the toggle and terminal overhang. It accepts supplementary devices (product extension installable supplementary devices: yes), so you can add auxiliary contacts, shunt trips, or undervoltage releases on the same DIN-rail footprint without extra wiring space. Combined terminals are not available on top or bottom, so each conductor lands on its own dedicated clamp — no looping through the breaker. Neutral conductor switching (yes) means the neutral is opened and closed with the phase, which is required in some national wiring rules for single-phase final circuits. The supply cord can be connected from any position (top or bottom feed), giving flexibility in panel layout.
The 5SL3016-7KL is certified to IEC/EN60898-1 and GB/T10963.1 (the Chinese national standard equivalent). It carries energy limitation class 3, meaning it limits let-through energy to a low level during a short-circuit event — protecting downstream equipment and reducing arc-flash risk.