Siemens SENTRON 5SL6416-7RC — 16 A, 4-Pole MCB, C-Curve
The Siemens 5SL6416-7RC is a 4-pole miniature circuit breaker rated 16 A with a C tripping characteristic, housed in a 72 mm wide (4-module) SENTRON package.
At 72 mm wide (4 modular width units), 90 mm tall, and 76 mm deep, the 5SL6416-7RC occupies four standard DIN-rail positions.
The degree of pollution is rated 2 (non-conductive pollution only), and overvoltage category III suits fixed-installation distribution boards. Lifecycle status is Active per the manufacturer — this is a current-production part, not subject to phase-out.
In a typical residential or light commercial panel, the upstream main breaker or fuse must have a higher breaking capacity (often 10 kA or 25 kA) to ensure selectivity — the 5SL6416-7RC clears its own faults without the upstream device opening. For systems with higher prospective fault current (e.g., near a transformer), a breaker with a 10 kA or 15 kA rating would be needed upstream. The 4-pole design with a 72 V DC maximum rating on each pole means it can also be used in DC circuits up to 72 V, though the AC application is primary. The 10 000 mechanical operating cycles typical service life is standard for this class — adequate for normal switching, not intended for frequent motor starting duty (that calls for a contactor).