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Siemens 5SY5114-7KK11 — 1-Pole MCB (DIN Rail)

Siemens 5SY5114-7KK11 SENTRON MCB, 1P C-curve, 10kA, 400V AC

MPN5SY5114-7KK11

Siemens SENTRON 5SY5114-7KK11, 1-pole miniature circuit breaker, C-curve, 10 kA (EN 60898) / 15 kA (IEC 60947-2 DC), 400 V AC, 220 V DC, 1 MW width, IP20.

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

Specifications

5SY5114-7KK11 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityuniversal current
5SY5114-7KK11 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Energy limitation class3
Overvoltage categoryIII
5SY5114-7KK11 — 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
5SY5114-7KK11 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

Siemens 5SY5114-7KK11 — SENTRON 1-pole C-curve MCB for universal-current and railway applications

Its C-curve tripping characteristic makes it suitable for protecting circuits with moderate inrush currents — typical for motor starters, contactor coils, and control transformers in industrial panels. The breaker is rated 10 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2 at DC, with a rated voltage of 400 V AC and 220 V DC (max 250 V DC operating). It occupies a single modular width (18 mm) on DIN rail, mounts in any position, and is sealable for tamper-proof installations.

Mounting and wiring — DIN-rail fit and terminal details

At 18 mm wide (1 MW), it leaves room for adjacent breakers or auxiliaries in a crowded panel. The supply cord position is AC as required, but DC polarity must be observed — a detail that matters when wiring DC control circuits.

Frequently asked questions

Where can I buy 5SY5114-7KK11 and how do I get a price?

The 5SY5114-7KK11 is sourced through independent distribution and quoted to order against an RFQ. Submit a request for current pricing and availability — both are confirmed at quote time.

What is the closest functional second-source to 5SY5114-7KK11?

The 5SY5240-7 is a related SENTRON MCB, but it is a higher-current variant with a different trip curve and breaking capacity. The 5SY5114-7KK11 is a 1-pole C-curve unit at 10 kA; verify the specific ratings before substituting. The 5SY5416-7 and 5SY4101-7CV are also in the same family but differ in poles, curve, or current rating. For a direct form-fit-function replacement, stick with the exact order code unless the project allows a coordinated change.

What are the key dimensions of 5SY5114-7KK11?

The 5SY5114-7KK11 has a width of 18 mm (1 modular width), a depth of 76 mm, a height of 90 mm, and an installation depth of 70 mm.

Will 5SY5114-7KK11 drop into a panel specified around 5SY5240-7 without rewiring?

Both are 1-pole SENTRON MCBs on the same DIN-rail footprint, so the mechanical fit is identical. However, the 5SY5240-7 is a higher-current variant; verify that the circuit's load current and fault current are within the 5SY5114-7KK11's ratings before swapping. The terminal style and busbar compatibility are the same, so no rewiring is needed if the ratings match.

MPN
5SY5114-7KK11