Siemens SENTRON 5SY4305-7, 3-pole miniature circuit breaker, 0.5 A rated current, C tripping characteristic, 10 kA breaking capacity per EN 60898, 35 kA per IEC 60947-2.
| Parameter | Value |
|---|---|
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
The 5SY4305-7: At 0.5 A, this is a low-current branch breaker — think control transformers, solenoid valves, or signal-conditioning supplies drawing under half an amp. The C-curve means it holds through the 8–10× inrush of a small control transformer primary without opening, then clears a hard fault fast.
Halogen-free and silicon-free construction avoids outgassing concerns near sensitive contacts or in clean-room zones.
The breaker is certified to IEC / EN 60898-1, IEC / EN 60947-2, and UL1077. These cover both residential-style miniature circuit breaker testing and industrial power circuit breaker standards, so it qualifies for panels built to either code.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
No related articles