Siemens SENTRON 5SY6 series, miniature circuit breaker, 2-pole, D tripping characteristic, 40 A, 400 V AC, 10 kA (IEC 60947-2), 6 kA (EN 60898).
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Application environment | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | D |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 36 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Min. | -40 °C |
| Max. | 75 °C |
| Protection degree (IP) | IP20, with connected conductors |
| Parameter | Value |
|---|---|
| Pollution degree | 3 |
For DC circuits, the same breaker is rated 15 kA at 72 V DC (IEC 60947-2), and under UL 1077 / CSA C22.2 No. 235 it carries 5 kA at AC.
Mounts via the quick-assembly system in any position, on any DIN rail. Ambient range runs from -40 °C to 75 °C, with humidity derating above 55 °C (max 95% RH at 55 °C, tapering to 35% at 75 °C).
10 kA per IEC 60947-2 at 400 V AC, 6 kA per EN 60898, 15 kA at 72 V DC (IEC 60947-2), and 5 kA under UL 1077 / CSA C22.2 No. 235 at AC.
Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
The 5SY6240-8 is a 2-pole, 40 A, D-curve MCB; the 5SY6613-8 is a different variant in the same SENTRON 5SY6 family. Both share the same DIN-rail footprint and 36 mm width, so a panel specified around one will accept the other without rewiring, but the tripping curve and current rating differ — verify the protection coordination before swapping.
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