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Siemens 5SY4608-7 — 4-Pole MCB (DIN Rail)

Siemens 5SY4608-7 SENTRON MCB, 4P C-8A, 10kA IEC/EN 60898-1

MPN5SY4608-7
Active

Siemens SENTRON 5SY4608-7, 4-pole miniature circuit breaker, C-curve, 8 A rated, 10 kA (IEC/EN 60898-1) / 20 kA (IEC 60947-2) breaking capacity.

Siemens 5SY4608-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4608-7 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4608-7 — Ratings
ParameterValue
Number of poles4
Pole configuration3P+N
Rated voltage, AC (multi-phase)440 V
5SY4608-7 — Protection
ParameterValue
Tripping characteristic (trip curve)C
Energy limitation class3
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
5SY4608-7 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Fastening / mounting methodQuick assembly system
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SY4608-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
5SY4608-7 — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)0.9 W

Product details

It breaks 10 kA per IEC/EN 60898-1 and 20 kA per IEC 60947-2 / UL1077, which covers most industrial panel and building distribution fault levels without needing an upstream current-limiting device.

Derating and ambient limits

The 8 A rating holds at 35 °C. Above that, the breaker derates linearly: 7.51 A at 40 °C, 7.26 A at 45 °C, 6.99 A at 50 °C, 6.72 A at 55 °C, and 6.43 A at 60 °C. The unit also handles -40 °C to 75 °C storage and 95 % humidity up to 55 °C.

Occupies 4 modular width units (72 mm wide, 90 mm tall, 76 mm deep plus 70 mm installation depth).

Frequently asked questions

How do I get current pricing and availability for 5SY4608-7?

Pricing and stock are confirmed at quote time. Submit an RFQ with your quantity and target delivery window, and we'll return a firm quote from our distribution channel.

Will 5SY4608-7 drop into a panel that was specified around 5SY4140-7 without rewiring?

Both are 4-pole SENTRON MCBs on the same DIN-rail footprint, so the mechanical swap is straightforward. However, the 5SY4140-7 is a 40 A C-curve breaker; the 5SY4608-7 is 8 A. Verify the load current and cable sizing before substituting — the physical fit is identical, but the ampacity match is what governs.

What compliance documentation does this brand provide for 5SY4608-7 (RoHS, REACH, UL, IEC)?

The breaker is certified to IEC/EN 60898-1, IEC/EN 60947-2, and UL1077. It is halogen-free and silicon-free, which supports RoHS/REACH compliance declarations. Contact us with your RFQ to request the specific declaration or certificate copy.

MPN
5SY4608-7