Integrator note — 5SY6616-7CC
The Siemens 5SY6616-7CC is a SENTRON miniature circuit breaker (MCB) rated 16 A at 400 V AC, 4-pole (3P+N), with a C tripping characteristic. It breaks 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No.235 — enough for most industrial panel branch circuits. Mounts via the quick-assembly system (DIN rail compatible) and occupies 4 width units (72 mm). The neutral pole is switched (3P+N), so it fits 3-phase + N panels where you need to isolate the neutral on fault.
Electrical environment
The 50/60 Hz rating covers both 50 Hz European and 60 Hz North American line frequencies. Ambient temperature range -40 to 75 °C, with derating above 55 °C per the humidity/temperature influence curve (max 95% RH to 55 °C, 55% RH to 70 °C, 35% RH to 75 °C). Energy limiting class 3 means it limits let-through energy well — important for downstream cable and device protection in a coordinated panel. Sealable terminals (top and bottom combined) allow tamper-proofing for metering or safety circuits.
Compliance & approvals
Designed per EN 60898 (6 kA) and UL 1077 / CSA C22.2 No.235 (5 kA), so it carries dual IEC and North American supplementary protection ratings. The 5SY6CC design variant is listed for mechanical engineering and industrial applications.