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Siemens 5SP4250-7 — 2-Pole MCB (DIN Rail)

SENTRON 5SP4250-7 Miniature Circuit Breaker, 2P C 50A 10kA

MPN5SP4250-7

SENTRON 5SP4 series, miniature circuit breaker, 2-pole, C-curve, 50 A, 400 V AC, 10 kA (EN 60898) / 20 kA (IEC 60947-2).

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SP4250-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
5SP4250-7 — Electrical
ParameterValue
Number of poles2
5SP4250-7 — Protection
ParameterValue
Tripping characteristic classC
5SP4250-7 — Mechanical
ParameterValue
Installation depth70 mm
5SP4250-7 — Other specifications
ParameterValue
Tunnel terminals topYes
Design of the product5SP Miniature circuit breakers
Number of poles (Note)2P
Tunnel terminals bottomYes
Circuit-breaker (Design)5SP4
Current (at AC)50 A
Acc. to EN 60898 / rated value10 kA
Acc. to IEC 60947-2 / rated value20 kA
Supply voltage (at AC)400 V

Product details

At 50 A per pole on a 2-pole breaker, you're protecting a 400 V AC single-phase or two legs of a three-phase circuit. That dual rating is the spec to cite when the panel SCCR calculation lands between 10 and 20 kA.

Installation depth is 70 mm, which matches the standard SENTRON 5SP family footprint — it clips onto DIN rail and occupies the expected modular width for a 2-pole unit. Both top and bottom terminals are tunnel-type, so you land the conductors with a screw clamp. No special comb-bus or adapter needed for the 5SP4 rail; it accepts the standard SENTRON busbar system for daisy-chaining multiple breakers in the distribution board.

Frequently asked questions

What is the breaking capacity of 5SP4250-7?

It is rated 10 kA per EN 60898 and 20 kA per IEC 60947-2 at 400 V AC.

How do I get current pricing and availability for 5SP4250-7?

Submit an RFQ through this listing. We source through independent distribution and confirm current pricing and availability at quote time.

What is the difference between 5SP4250-7 and 5SP4292-7?

The 5SP4292-7 is a 2-pole, C-curve breaker rated 63 A (vs. 50 A for the 5SP4250-7) and carries a 440 V AC rating. It also adds sealability, halogen-free and silicon-free construction, and a wider operating temperature range. Both share the same 70 mm installation depth and tunnel terminals, so they are mechanically interchangeable in the same DIN-rail panel — the choice is driven by the load current and environmental requirements.

MPN
5SP4250-7