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Siemens 5SY4210-6KK11 — 2-Pole MCB (DIN Rail)

Siemens 5SY4210-6KK11 SENTRON MCB, B-Curve 2-Pole, 10kA

MPN5SY4210-6KK11

Siemens SENTRON 5SY4210-6KK11, miniature circuit breaker, 2-pole, B-curve, 10 kA per EN 60898, 20 kA per IEC 60947-2, 400 V AC, 60 V DC, IP20, 36 mm wide.

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

Specifications

5SY4210-6KK11 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY4210-6KK11 — Electrical
ParameterValue
Number of poles2
5SY4210-6KK11 — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SY4210-6KK11 — 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
5SY4210-6KK11 — Environmental
ParameterValue
Pollution degree3
5SY4210-6KK11 — 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 also carries a 15 kA DC rating per IEC 60947-2, so it can handle DC control circuits up to 60 V (72 V max) — common in 48 V or 60 V DC bus systems on conveyor or crusher controls.

Width is 36 mm (2 MW). Depth is 76 mm (70 mm installation depth), height 90 mm. IP20 rating applies with connected conductors — fine inside a locked panel; not for washdown zones. Sealable design lets you lock the toggle position with a padlock hasp, which is useful for lockout/tagout on a maintenance circuit. Halogen-free and silicon-free construction reduces toxic smoke and silicone outgassing in enclosed spaces.

Environmental limits and derating

That covers everything from a frozen winter startup in a Canadian mine to the heat soak next to a crusher drive. Humidity derating is specified: max 95% RH up to 55 °C, tapering to 55% at 70 °C and 35% at 75 °C. If your panel sees sustained high humidity at elevated temperatures, you'll need to account for the reduced moisture tolerance at the top end.

MPN
5SY4210-6KK11