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Siemens 5SY7502-7 — 1-Pole MCB (DIN Rail)

Siemens 5SY7502-7 SENTRON MCB, 2-pole 1P+N, C-curve, 15/50 k

MPN5SY7502-7

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Siemens SENTRON 5SY7502-7, miniature circuit breaker, 2-pole 1P+N, C tripping characteristic, 15 kA (EN 60898) / 50 kA (IEC 60947-2), 230 VAC, 60 VDC, 2 MW.

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

Specifications

5SY7502-7 — Identification
Parameter	Value
Product designation	Miniature circuit breaker
Brand name	SENTRON
Number of poles	2
Pole design	1P+N
Application suitability	Mechanical engineering / industry

5SY7502-7 — Electrical & Protection
Parameter	Value
Tripping characteristic class	C
Energy limitation class	3
Overvoltage category	III

5SY7502-7 — Mounting & Connection
Parameter	Value
Mounting position	any
Fastening method	Quick assembly system
Combined terminal, top	Yes
Combined terminal, bottom	Yes
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

5SY7502-7 — Environmental
Parameter	Value
IP protection class	IP20, with connected conductors
Pollution degree	3
Halogen-free	Yes
Silicone-free	Yes

Product details

It's also rated 15 kA at 60 VDC (per IEC 60947-2), so it works on DC control circuits or battery-backed loads. The DC rating is often overlooked on MCBs — if you're switching 48 V or 60 VDC buswork, this breaker covers it without needing a separate DC-rated device.

The 5SY7502-7 occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm. That's standard for a 2-pole SENTRON — it'll drop into any existing 5SY series panel without re-drilling or re-spacing. The quick-assembly fastening system means it snaps on and off without tools, which speeds up panel build or swap-out. Mounting position is any orientation, so it fits in horizontal busways or vertical sub-panels.

Compliance covers IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077. Halogen-free and silicon-free construction.

Frequently asked questions

Will the 5SY7502-7 fit in a panel designed for a 5SY4140-7?

No — the 5SY7502-7 is a 2-pole 1P+N breaker occupying 2 MW (36 mm), while the 5SY4140-7 is a 1-pole unit in 1 MW. The footprint and wiring differ; you cannot simply swap them without panel modification.