The Siemens 5SY6206-6CC is a 2-pole miniature circuit breaker from the SENTRON family, designed for branch-circuit protection in industrial control panels. Its B-curve tripping characteristic (3-5 In magnetic release) makes it a good fit for resistive and general-purpose loads where inrush is modest — think control transformers, lighting circuits, or heater banks rather than motor feeders. Rated breaking capacity hits 6 kA per EN 60898 at 400 V AC, which covers most standard distribution panels. Under UL 1077 and CSA C22.2 No. 235 it's rated 5 kA — enough for North American supplementary protection applications. The 50/60 Hz rating and 440 V maximum operating voltage (single- or multi-phase) confirm it for global 400 V line supplies. At 2 modular width units (36 mm wide), it snaps onto standard DIN rail and accepts top/bottom combined terminals for daisy-chaining busbars. The IP20 rating applies with conductors connected — fine inside a closed panel, not for wet or dusty environments.
Installation notes
Mounts in any position — handy when the panel layout is tight. The 76 mm depth includes the breaker body; installation depth is 70 mm, so it clears a standard 80 mm deep enclosure. Mechanical service life is 10,000 cycles typical, and it accepts plug-in supplementary devices (auxiliary contacts, shunt trips, alarm switches) for remote status or emergency shutdown. Ambient temperature range is -40 °C to 75 °C, with humidity derating above 55 °C. Pollution degree 3 and overvoltage category III suit industrial environments where conductive dust or transient surges are present.