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Siemens 5SY7350-6 — Miniature Circuit Breakers (MCB)

Siemens 5SY7350-6 SENTRON MCB, 3P, 50 A, B-Curve, 15 kA IEC

MPN5SY7350-6
Active

Siemens SENTRON 5SY7350-6 miniature circuit breaker, 3-pole, 50 A, B-curve, 15 kA acc. to EN 60898, 20 kA acc. to IEC 60947-2, 54 x 90 x 76 mm.

Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SY7350-6 — Ratings
ParameterValue
Overvoltage categoryIII
5SY7350-6 — Mechanical
ParameterValue
Width54 mm
Height90 mm
Depth76 mm

Product details

The 5SY7350-6: The 15 kA rating under EN 60898 is the standard for residential and light commercial final circuits; the 20 kA under IEC 60947-2 covers industrial distribution where fault currents run higher. The DC 15 kA rating (IEC 60947-2) matters for battery-backed or rectifier-fed loads. For UL 1077 / CSA C22.2 No. 235 installations, the listed 5 kA applies — confirm your available fault current stays within that limit before specifying.

Mounting and integration — DIN rail, any position, quick assembly

Combined terminals top and bottom simplify busbar and outgoing wiring.

Environmental and compliance — halogen-free, silicon-free, wide temperature range

Halogen-free and silicon-free construction suits applications sensitive to outgassing — clean rooms, medical equipment, or sealed enclosures where corrosion matters. The operating temperature range spans -40 °C to 75 °C, with derating for humidity (95% RH up to 55 °C, tapering to 35% at 75 °C).

Frequently asked questions

What is the breaking capacity of 5SY7350-6?

15 kA per EN 60898, 20 kA per IEC 60947-2 at 400 V AC, and 15 kA per IEC 60947-2 at DC. For UL 1077 / CSA C22.2 No. 235, the rating is 5 kA.

Will 5SY7350-6 drop into a panel specified around 5SY4140-7?

Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, but the 5SY7350-6 is a 50 A B-curve, while the 5SY4140-7 is a different rating and characteristic. Verify the existing BOM's current and trip curve before swapping — the mechanical fit is the same, but the electrical ratings differ.

What compliance documentation does Siemens provide for 5SY7350-6?

The part carries ratings per EN 60898, IEC 60947-2, and UL 1077 / CSA C22.2 No. 235. It is halogen-free and silicon-free. Specific RoHS, REACH, and CE declarations are available from Siemens documentation upon request.

Where can I buy 5SY7350-6 and get current pricing?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time.

MPN
5SY7350-6