SENTRON 5SY6616-8 — D-curve 4-pole MCB for high-inrush loads
The Siemens 5SY6616-8 is a SENTRON 5SY6 miniature circuit breaker with a D tripping characteristic, 4 poles (3P+N), rated 16 A at 400 V AC. Breaking capacity is 6 kA per EN 60898 and 15 kA per IEC 60947-2, with a 5 kA rating under UL 1077 / CSA C22.2 No. 235 for North American panels. Neutral pole switches with the phase poles, which simplifies wiring in a 3P+N distribution board.
Panel fit and environmental tolerance
Mounts via the quick-assembly system (DIN rail) in any position. Ambient range from -40 °C to 75 °C, with humidity derating above 55 °C (max 95% RH to 55 °C, then 55% to 70 °C, then 35% to 75 °C). Halogen-free and silicon-free construction; sealable to prevent tampering. Overvoltage category III, so it's rated for fixed-installation mains supply.
Rated and marked per EN 60898 (6 kA) and IEC 60947-2 (15 kA at 400 V AC, 15 kA at 72 V DC). Also carries a UL 1077 / CSA C22.2 No. 235 rating at 5 kA for supplementary protection use in North American panels. The product designation follows DIN EN 61346-2 and DIN EN 81346-2 (function code F). Touch protection is integrated. For RoHS, REACH, and full declaration of conformity, the manufacturer provides these on request with the order documentation.