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Siemens 5SY8410-8 — 4-Pole MCB (DIN Rail)

Siemens 5SY8410-8 SENTRON MCB, 4P D 10A, 40kA

MPN5SY8410-8
Active

Siemens SENTRON 5SY8410-8, miniature circuit breaker, 4-pole, D tripping characteristic, 10 A rated current, 40 kA breaking capacity at 440 V AC per IEC 60947-2.

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

Specifications

5SY8410-8 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY8410-8 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated voltage, AC (multi-phase)440 V
5SY8410-8 — Protection
ParameterValue
Tripping characteristic (trip curve)D
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
5SY8410-8 — 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
5SY8410-8 — 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
5SY8410-8 — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)0.9 W

Product details

The D curve holds through those surges and clears only on a sustained overload or short circuit. Breaking capacity is 40 kA at 440 V AC per IEC 60947-2 (the industrial standard, not the residential EN 60898), and 15 kA at 72 V DC.

Thermal derating and environment

Rated 10 A at 45 °C ambient; derates to 9.75 A at 50 °C and 9.49 A at 55 °C.

Frequently asked questions

How do I get current pricing and availability for 5SY8410-8?

Submit an RFQ through this listing. The part is sourced to order; pricing and stock status are confirmed at quote time.

Will 5SY8410-8 drop into a panel specified around 5SY4140-7 without rewiring?

Both are 4-pole SENTRON MCBs with the same 72 mm width (4 modular units), same DIN-rail mounting, and same D-curve. The 5SY8410-8 carries a higher 40 kA breaking capacity versus the 5SY4140-7's rating — check that your panel's available fault current doesn't exceed the lower breaker's capability before swapping.

What compliance documentation does Siemens provide for 5SY8410-8?

The part carries IEC 60947-2 ratings (40 kA AC, 15 kA DC), pollution degree 3, overvoltage category III, and is halogen-free and silicon-free. Declaration of conformity and CE marking are standard with the SENTRON series; specific RoHS/REACH declarations are available from Siemens documentation.

MPN
5SY8410-8