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Siemens 5SY4404-7KK11 — 4-Pole MCB (DIN Rail)

Siemens 5SY4404-7KK11 SENTRON MCB, 4P C-curve 10kA

MPN5SY4404-7KK11

Siemens SENTRON 5SY4404-7KK11, 4-pole miniature circuit breaker, C-curve, 10 kA (EN 60898-1) / 35 kA (IEC 60947-2), 400 V AC, 72 x 90 x 76 mm.

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

Specifications

5SY4404-7KK11 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4404-7KK11 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated voltage, AC (multi-phase)440 V
5SY4404-7KK11 — Protection
ParameterValue
Tripping characteristic (trip curve)C
Energy limitation class3
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
5SY4404-7KK11 — 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
5SY4404-7KK11 — 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
5SY4404-7KK11 — Performance
ParameterValue
Power loss per pole, AC (hot state, at In)1.3 W

Product details

Rated operating voltage is 400 V AC (multi-phase) with a frequency range of 50/60 Hz, so it drops straight into a standard European 400/230 V three-phase panel. The DC rating is 60 V (72 V max), which covers control-circuit applications but not high-voltage DC bus work.

Current production — no lifecycle concern

It carries the SENTRON brand and is designed for railway applications (per the product design), with halogen-free and silicon-free construction. That matters if your panel sits in a rail vehicle or a tunnel environment where low-smoke, zero-halogen materials are specified.

The 4-module-width body (72 mm wide, 90 mm tall, 76 mm deep, 70 mm installation depth) snaps onto a standard DIN rail via the quick-assembly fastening method. Mounting position is any, which helps when the gland plate layout forces a rotated sub-panel.

Frequently asked questions

What is the breaking capacity of 5SY4404-7KK11?

10 kA per EN 60898-1 for residential/commercial duty, and 35 kA per IEC 60947-2 for industrial use. The 35 kA figure governs selectivity with upstream switchgear in a plant distribution board.

Where can I buy 5SY4404-7KK11?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will 5SY4404-7KK11 fit a panel designed for 5SY6332-7CC?

Both are 4-module-width SENTRON MCBs on the same DIN-rail footprint, so the mechanical fit is the same. The difference is in the trip curve and breaking capacity — verify the C-curve and 10/35 kA ratings match your coordination study before swapping.

MPN
5SY4404-7KK11