Its C-curve tripping characteristic means it holds up to 5–10× rated current momentarily — suited for motor and transformer inrush where a B-curve would nuisance-trip, but not for the high-inrush of heavy drives (that would want a D-curve). Rated for 400 V AC multi-phase and single-phase operation, with a maximum of 440 V AC — so it fits standard 400 V three-phase and 230/400 V single-phase distribution, but not 480 V line-to-line systems. Maximum DC voltage is 72 V. Installation depth is 70 mm; housing depth is 76 mm.
Siemens 5SN6250-8CP MCB 5SN 2-pole C-curve 400V 6kA/10kA
MPN5SN6250-8CP
Siemens SENTRON MCB 5SN, 2-pole, C-curve, 400 V AC, 72 V DC, 6 kA (EN 60898) / 10 kA (IEC 60947-2), 2 modular width units, 36 mm wide.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Supply voltage at AC rated value | 400 V |
| Parameter | Value |
|---|---|
| Modular width units | 2 |
| Width | 36 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Min. | -40 °C |
| Max. | 75 °C |
| Parameter | Value |
|---|---|
| According to EN 60898 rated value | 6 kA |
| With single-phase operation at AC rated value | 440 V |
Product details
MPN
5SN6250-8CP