The Siemens SENTRON 5SL4525-6 is a 1P+N miniature circuit breaker rated 25 A with a B tripping characteristic, designed for 230 V AC single-phase circuits. It breaks fault currents up to 10 kA per both EN 60898 and IEC 60947-2 — that's the standard residential and light-commercial interrupting rating, so it clears a dead short without welding contacts. The B curve (3–5× In instantaneous trip) suits resistive and general-purpose loads where you want nuisance-free protection for lighting, receptacles, and small appliances.
Siemens 5SL4525-6 SENTRON MCB, 25A, 1P+N, B-Curve, 10kA
MPN5SL4525-6
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Siemens SENTRON 5SL4525-6, miniature circuit breaker, 1P+N, B characteristic, 25 A, 230 V AC, 10 kA breaking capacity, 2 MW (36 mm), IP20.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Number of poles | 2 |
| Pole design | 1P+N |
| Application suitability | Residential buildings/infrastructure |
| Parameter | Value |
|---|---|
| Tripping characteristic class | B |
| Energy limitation class | 3 |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Width | 36 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Modular width units | 2 |
| Torque, min. | -40 °C |
| Torque, max. | 75 °C |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| IP protection class | IP20, with connected conductors |
| Pollution degree | 2 |
| Halogen-free | Yes |
| Silicone-free | Yes |
Product details
Frequently asked questions
What is the breaking capacity of 5SL4525-6?
10 kA per EN 60898 and IEC 60947-2 at 230 V AC — sufficient for residential and light-commercial service entrance or sub-panel protection.
Will 5SL4525-6 drop into a panel specified for 5SL4363-7?
No — the 5SL4363-7 is a 3-pole, 63 A, C-curve MCB in a 54 mm (3 MW) footprint. The 5SL4525-6 is 2 MW wide and single-phase, so it won't fit the same busbar arrangement or DIN-rail space without rework.
Where can I buy 5SL4525-6?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
5SL4525-6