Skip to main content
Log in
Siemens 5SY4363-7KK11 — 3-Pole MCB (DIN Rail)

Siemens SENTRON 5SY4363-7KK11 MCB, 3P C-curve, 10kA EN 60898

MPN5SY4363-7KK11

Siemens SENTRON miniature circuit breaker, 5SY4363-7KK11, 3-pole, C tripping characteristic, 10 kA breaking capacity (EN 60898), 15 kA (IEC 60947-2), 400 V AC, 60 V DC.

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

Specifications

5SY4363-7KK11 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY4363-7KK11 — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 6089810 kA
Breaking capacity per IEC 60947-215 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree3
5SY4363-7KK11 — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Voltage type (AC/DC)AC
Supply frequency range50/60 Hz
Power loss per pole at rated current (AC, hot)4.9 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
Rated voltage (AC, single-phase)440 V
5SY4363-7KK11 — Mechanical
ParameterValue
Modular width units3
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
Combined terminal, topYes
Combined terminal, bottomYes
Fastening methodQuick assembly system
SealableYes
Accepts supplementary devicesYes
5SY4363-7KK11 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
Vibration resistance (IEC 60068-2-6)±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz

Product details

Rated at 10 kA according to EN 60898-1 and 15 kA according to IEC 60947-2, this breaker handles typical industrial fault levels without cascading upstream. The 15 kA IEC rating is the one to use for industrial panel SCCR calculations; the EN rating covers residential and commercial coordination. Energy limitation class 3 means it lets through less energy during a short-circuit, reducing arc damage to downstream equipment.

Voltage ratings and DC capability

Rated 400 V AC (440 V max for both single- and multi-phase operation) and 60 V DC (72 V DC max). The DC rating is relevant for control circuits, battery banks, or solar combiner boxes where the breaker must interrupt a DC arc. The 15 kA DC breaking capacity per IEC 60947-2 is the same as the AC value — unusual for an MCB this size.

Operates from -40 °C to 75 °C, with humidity derating above 55 °C (95% RH to 55 °C, 55% to 70 °C, 35% to 75 °C). Sealable terminals (top and bottom combined) allow tamper-proofing in metering or critical circuits.

Frequently asked questions

What is the breaking capacity of 5SY4363-7KK11?

10 kA per EN 60898-1 and 15 kA per IEC 60947-2, both at 400 V AC. The DC breaking capacity is also 15 kA at 60 V DC per IEC 60947-2.

What is the tripping characteristic of this MCB?

C-curve, which trips between 5 and 10 times rated current. Suitable for motor, transformer, and lighting loads with moderate inrush.

Where can I buy 5SY4363-7KK11?

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

What compliance documentation is available for 5SY4363-7KK11?

The breaker is designed to DIN EN 60898-1 and IEC 60947-2. It is halogen-free and silicon-free, and rated for overvoltage category III, pollution degree 3.

Will 5SY4363-7KK11 fit in a panel designed for 5SY4304-7CV?

Both are SENTRON 3-pole MCBs with the same 54 mm width (3 modular units) and DIN-rail mounting. The 5SY4363-7KK11 has a higher breaking capacity (15 kA vs the 6 kA typical of the 5SY4304-7CV) and a C-curve vs B-curve — check selectivity coordination before substituting.

MPN
5SY4363-7KK11