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Siemens 5SY4204-7 — 2-Pole MCB (DIN Rail)

Siemens 5SY4204-7 SENTRON MCB, 2P C-curve, 10kA IEC 60898

MPN5SY4204-7
Active

Siemens SENTRON 5SY4204-7, 2-pole miniature circuit breaker, C-curve, 10 kA (IEC 60898) / 35 kA (IEC 60947-2) breaking capacity, 400 V AC, 60 V DC, 2 MWU, IP20.

$55.88 – $74.89Ref. price · indicative, final on quote
Siemens 5SY4204-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4204-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY4204-7 — Electrical
ParameterValue
Number of poles2
5SY4204-7 — Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SY4204-7 — Mechanical
ParameterValue
Modular width units2
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors
5SY4204-7 — Environmental
ParameterValue
Pollution degree3
5SY4204-7 — Specifications
ParameterValue
At AC rated value400 V
According to EN 60898 rated value10 kA
With single-phase operation at AC rated value440 V
Energy Limitation Class3

Product details

It's built for panel protection in industrial control cabinets — mechanical engineering and industry applications per the manufacturer's suitability listing.

Breaking capacity — the number that decides fit

Breaking capacity is the first thing to verify when swapping an MCB into an existing panel. This 5SY4204-7 carries three ratings: 10 kA per IEC 60898-1 (the domestic / light commercial standard), 35 kA per IEC 60947-2 (the industrial standard), and 15 kA at DC per IEC 60947-2. Under UL 1077 it's rated 5 kA. If it's higher, you need a higher-rated device or a current-limiting upstream fuse.

Mounting position any orientation, and the supply cord can land on either top or bottom terminals (combined terminal top and bottom). Installation depth 70 mm, overall depth 76 mm. IP20 with conductors connected — fine inside a closed panel, not for wet environments.

Environmental and handling specs

Humidity derating: max 95% RH up to 55 °C, dropping to 35% at 75 °C. Sealable — you can lock the toggle in the off position with a padlock for lockout/tagout.

Frequently asked questions

How do I get current pricing and availability for 5SY4204-7?

Submit an RFQ through this listing. Pricing and stock are confirmed at quote time; the part is sourced to order through independent distribution.

Will 5SY4204-7 drop into a panel that was specified around 5SL4363-7 without rewiring?

Both are 2-pole SENTRON MCBs with the same 36 mm width (2 MWU) and DIN-rail mounting, so the physical fit is identical. The key difference is the breaking capacity and trip curve — the 5SL4363-7 is a B-curve with different interrupting ratings. Check your panel's fault current and trip coordination before swapping.

What compliance documentation does this brand provide for 5SY4204-7?

The breaker is certified to IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free.

MPN
5SY4204-7