Skip to main content
Log in
Siemens 5SY4406-6KK11 — 4-Pole MCB (DIN Rail)

Siemens 5SY4406-6KK11 SENTRON MCB, 4P, 6A, B Curve, 10kA

MPN5SY4406-6KK11

Siemens SENTRON 5SY4406-6KK11 miniature circuit breaker, 4-pole, 6 A, B characteristic, 10 kA (EN 60898), 35 kA (IEC 60947-2), 4 width units.

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

Specifications

5SY4406-6KK11 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4406-6KK11 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC400 V
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
Rated voltage, DC (max.)72 V
Voltage typeAC
Rated frequency50/60 Hz
5SY4406-6KK11 — Protection
ParameterValue
Tripping characteristic (trip curve)B
Rated breaking capacity (Icn), per EN 6089810 kA
Rated breaking capacity, per IEC 60947-235 kA
Breaking capacity, AC (UL 1077 / CSA C22.2 No.235)5 kA
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SY4406-6KK11 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SY4406-6KK11 — 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
5SY4406-6KK11 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

Integrator's note — 5SY4406-6KK11

The Siemens SENTRON 5SY4406-6KK11 is a 4-pole miniature circuit breaker rated 6 A with a B tripping characteristic, designed for AC circuits up to 400 V. It carries a 10 kA breaking capacity per EN 60898 and a 35 kA rating per IEC 60947-2, giving it headroom for high-fault installations. Rated for a -40 °C to 75 °C ambient range, with pollution degree 3 and overvoltage category III — suitable for industrial control panels and railway auxiliary circuits.

The 10 kA per EN 60898 covers standard domestic/commercial fault levels; the 35 kA per IEC 60947-2 is the industrial rating that matters for panel coordination. The B characteristic (3-5 In) trips fast on short-circuits while tolerating moderate inrush, typical for resistive and lighting loads. For DC circuits, the maximum rated voltage is 72 V with a 15 kA breaking capacity per IEC 60947-2.

Frequently asked questions

What is the breaking capacity of 5SY4406-6KK11 at 400 V?

10 kA per EN 60898 and 35 kA per IEC 60947-2 at 400 V AC.

Will 5SY4406-6KK11 fit a panel designed for 5SY3132-6?

Both are 4-pole SENTRON MCBs on the same DIN-rail footprint, but the 5SY3132-6 is a different current rating and characteristic — verify the BOM current and coordination before substituting.

What compliance documentation does 5SY4406-6KK11 carry?

It is rated per EN 60898 (10 kA), IEC 60947-2 (35 kA), and UL 1077 / CSA C22.2 No.235 (5 kA). It is halogen-free and silicon-free.

Where can I buy 5SY4406-6KK11?

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

MPN
5SY4406-6KK11