Siemens SENTRON 5SY8410-8, miniature circuit breaker, 4-pole, D tripping characteristic, 10 A rated current, 40 kA breaking capacity at 440 V AC per IEC 60947-2.
| Parameter | Value |
|---|---|
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
The D curve holds through those surges and clears only on a sustained overload or short circuit. Breaking capacity is 40 kA at 440 V AC per IEC 60947-2 (the industrial standard, not the residential EN 60898), and 15 kA at 72 V DC.
Rated 10 A at 45 °C ambient; derates to 9.75 A at 50 °C and 9.49 A at 55 °C.
Submit an RFQ through this listing. The part is sourced to order; pricing and stock status are confirmed at quote time.
Both are 4-pole SENTRON MCBs with the same 72 mm width (4 modular units), same DIN-rail mounting, and same D-curve. The 5SY8410-8 carries a higher 40 kA breaking capacity versus the 5SY4140-7's rating — check that your panel's available fault current doesn't exceed the lower breaker's capability before swapping.
The part carries IEC 60947-2 ratings (40 kA AC, 15 kA DC), pollution degree 3, overvoltage category III, and is halogen-free and silicon-free. Declaration of conformity and CE marking are standard with the SENTRON series; specific RoHS/REACH declarations are available from Siemens documentation.
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.
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