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Siemens 5SY5104-7KK11 — 1-Pole MCB (DIN Rail)

Siemens 5SY5104-7KK11 SENTRON MCB, C-curve 1-pole 10 kA

MPN5SY5104-7KK11

Siemens SENTRON 5SY5104-7KK11, miniature circuit breaker, 1-pole C-curve, 10 kA breaking capacity per EN 60898, 15 kA DC per IEC 60947-2, 18 mm width, for railway applications.

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

Specifications

5SY5104-7KK11 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityuniversal current
5SY5104-7KK11 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Energy limitation class3
Overvoltage categoryIII
5SY5104-7KK11 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY5104-7KK11 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens SENTRON 5SY5104-7KK11 is a 1-pole miniature circuit breaker with a C-trip curve, designed for universal current operation (AC/DC) and rated for railway applications. It delivers a 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2 at DC, making it suitable for fault interruption in both AC and DC circuits up to 440 V AC single-phase or 250 V DC.

Integration & mounting

The 18 mm width (1 modular unit) snaps onto a DIN rail via the quick assembly system and can be mounted in any position. Installation depth is 70 mm; overall depth with terminals is 76 mm. The IP20 rating applies with connected conductors, suitable for enclosed panel environments.

Environmental & compliance

Rated for ambient temperatures from -40 °C to 75 °C, with humidity limits per the surrounding temperature influence curve. Halogen-free and silicon-free construction. Overvoltage category III, pollution degree 3. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz.

Frequently asked questions

How do I get current pricing and availability for 5SY5104-7KK11?

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

Will 5SY5104-7KK11 drop into a panel specified around 5SY5240-7 without rewiring?

Both are 1-pole SENTRON MCBs with the same 18 mm width and DIN-rail mounting, so the mechanical fit is identical. However, the 5SY5240-7 is a higher-current variant (40 A vs 4 A for this part), so the conductor sizing and upstream protection must match the load — the breaker itself swaps in the same slot.

MPN
5SY5104-7KK11