The Siemens 5SY6501-7CC is a 1P+N SENTRON miniature circuit breaker with a C-curve tripping characteristic, rated 1 A at 230 V AC. It breaks fault currents up to 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No.235, so it covers both IEC and North American panel approvals from one SKU. The 36 mm width (2 MW) and 70 mm installation depth fit standard DIN-rail enclosures; the quick-assembly mounting system snaps onto the rail without tools.
The C-curve (tripping characteristic class C) means the magnetic trip operates at 5 to 10 times rated current — 5 to 10 A for this 1 A unit. The 6 kA breaking capacity at 230 V AC (EN 60898) is the standard for final sub-circuits in commercial and industrial distribution boards; the 5 kA UL 1077 rating lets the same breaker serve as a supplementary protector in UL 508A panels.
Both top and bottom terminals accept solid or stranded copper from 0.75 mm² up to 35 mm² — that's a wide range that covers everything from small control wiring to a 6 mm² feeder. The screw terminals call for 2.5 to 3.5 N·m torque; combined terminals at both ends simplify daisy-chaining or looping out to downstream loads.
Environmental limits and mounting
Rated for ambient temperatures from -25 °C to +55 °C, with storage down to -40 °C.