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Siemens 5SY4250-6 — 2-Pole MCB (DIN Rail)

Siemens 5SY4250-6 SENTRON MCB, 2P, B-Curve, 10/15 kA

MPN5SY4250-6

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Siemens SENTRON 5SY4250-6, 2-pole B-curve miniature circuit breaker, 10/15 kA breaking capacity, 36 mm wide, IP20.

$343.80Ref. price · indicative, final on quote

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Siemens 5SY4250-6 datasheet (PDF)

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

Specifications

5SY4250-6 — Identification
Parameter	Value
Product designation	Miniature circuit breaker
Brand name	SENTRON
Application environment	Mechanical engineering / industry

5SY4250-6 — Electrical
Parameter	Value
Number of poles	2

5SY4250-6 — Protection
Parameter	Value
Tripping characteristic class	B
Overvoltage category	III

5SY4250-6 — Mechanical
Parameter	Value
Modular width units	2
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

5SY4250-6 — Environmental
Parameter	Value
Pollution degree	3

5SY4250-6 — Specifications
Parameter	Value
At AC rated value	400 V
According to EN 60898 rated value	10 kA
With single-phase operation at AC rated value	440 V
Energy Limitation Class	3

Product details

Component summary

Halogen-free and silicon-free construction suits environments where outgassing or contamination must be minimised.

Installation & environment

Depth of 76 mm (70 mm installation depth), height 90 mm. IP20 with connected conductors. Degree of pollution 3, overvoltage category III. Sealable terminal covers combined at top and bottom allow padlocking for isolation locking. Neutral conductor is not switched by this device.

Designated with energy limitation class 3. Operating voltage is AC only, 50/60 Hz, rated 400 V (single-phase 440 V). DC operation supported up to 60 V rated, 72 V max, with 15 kA breaking capacity.