Siemens SENTRON 5SY7315-7CC — 1.6 A C-Curve MCB for Industrial Panels
The Siemens 5SY7315-7CC is a SENTRON miniature circuit breaker, 3-pole, rated 1.6 A with a C-curve tripping characteristic. It switches 400 V AC circuits and is rated for a 50 kA breaking capacity under IEC 60947-2 — that's the fault-clearing capability for industrial panel feeders where high prospective short-circuit currents are expected. For UL 1077 and CSA C22.2 No. 235 installations, the interrupting rating is 5 kA. The C-curve means it trips between 5 and 10 times rated current, so it's sized for moderate inrush loads like small motor starters or control transformers, not purely resistive heaters. Mounts on DIN rail via the quick-assembly system in any position, with an installation depth of 70 mm and overall depth of 76 mm. The 54 mm width (3 width units) fits standard enclosure cutouts. Terminal capacity accepts 0.75 to 35 mm² solid or stranded copper, with a screw-terminal torque range of 2.5 to 3.5 N·m. IP20 protection with conductors connected — suitable for enclosed panel mounting.
Panel Integration & Compliance
The breaker is sealable, halogen-free, and silicon-free — relevant for food-grade or clean-room panels where outgassing must be controlled. Ambient temperature range is -25 to +55 °C operating, -40 to +75 °C storage. Overvoltage category III suits fixed-installation distribution boards. The neutral conductor is not switched (3-pole only, no switched neutral). Touch protection is included on the terminals.