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Siemens 5SY4263-6 — 2-Pole MCB (DIN Rail)

Siemens SENTRON 5SY4263-6 MCB, 2P B-curve, 10kA

MPN5SY4263-6

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Siemens SENTRON, miniature circuit breaker, 5SY4263-6, 2-pole, tripping characteristic B, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 36 mm width.

$45.72Ref. price · indicative, final on quote

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

Specifications

5SY4263-6 — Identification
Parameter	Value
Product designation	Miniature circuit breaker
Brand name	SENTRON
Application environment	Mechanical engineering / industry

5SY4263-6 — Electrical
Parameter	Value
Number of poles	2

5SY4263-6 — Protection
Parameter	Value
Tripping characteristic class	B
Overvoltage category	III

5SY4263-6 — 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

5SY4263-6 — Environmental
Parameter	Value
Pollution degree	3

5SY4263-6 — 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

Integrator note

Rated 10 kA to EN 60898 and 15 kA to IEC 60947-2, it handles both residential and industrial fault levels. Operates on 50/60 Hz AC, with a rated voltage of 400 V AC across poles. For DC circuits, it interrupts up to 15 kA at a maximum 72 V DC.

Terminal design accepts combined feed top and bottom—no need to flip the breaker. IP20 protection with conductors connected; sealable cover available. Halogen-free and silicon-free construction. Energy limitation class 3 for short-circuit coordination.