DC-rated miniature circuit breaker for industrial control panels
At 2 A rated current, this breaker is sized for signal and control loads rather than main power distribution; it fits a 36 mm wide DIN-rail footprint (2 modular width units) and accepts auxiliary devices for remote signaling or shunt-trip functionality.
DC application and breaking capacity
The 2-pole design switches both conductors, and the manufacturer notes to observe polarity when connecting the supply — DC arcs require deliberate contact gap and arc-chamber design, which this breaker's construction addresses.
The SENTRON 5SY series is a mature, widely specified platform; PCNs are rare, but if a BOM freeze requires assurance, the manufacturer's standard documentation package (declaration of conformity, CE, RoHS, REACH) is available on request.
Panel integration and environmental limits
Snap-on mounting to DIN rail, any position. Ambient temperature range -40 °C to 75 °C, with humidity derating above 55 °C (max 95% RH at 55 °C, declining to 35% at 75 °C). Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — adequate for most industrial machinery but not for direct engine-mount applications.