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Siemens 5SY4363-6CC — 3-Pole MCB (DIN Rail)

Siemens 5SY4363-6CC SENTRON MCB, B-Curve 3-Pole, 10 kA

MPN5SY4363-6CC

Siemens SENTRON 5SY4363-6CC, miniature circuit breaker, 3-pole, B-curve, 10 kA per EN 60898, 400 V AC, 3 modular width units.

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

Specifications

5SY4363-6CC — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY4363-6CC — Protection
ParameterValue
Tripping characteristic (curve)B
Breaking capacity per EN 6089810 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree3
5SY4363-6CC — 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)4.7 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
Rated voltage (AC, single-phase)440 V
5SY4363-6CC — 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
5SY4363-6CC — 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

B-curve and breaking capacity

The 5SY4363-6CC: B-curve (3–5× In) trips fast on short-circuit but tolerates moderate inrush — typical for resistive and lighting loads, or short cable runs where no motor-starting surge exists. Under UL 1077 / CSA C22.2 No. 235 the interrupting rating is 5 kA. Operating voltage is 400 V AC nominal, with a maximum of 440 V in multi-phase or single-phase operation. DC-side rating tops out at 72 V. The breaker handles 50/60 Hz supply frequency.

Sealable enclosure option is built in. Halogen-free and silicon-free construction. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Mechanical service life 10,000 operating cycles typical.

Operating conditions and power loss

Humidity derating: max 95% RH up to 55 °C, 55% RH up to 70 °C, 35% RH up to 75 °C.

Accessories and compliance

Neutral conductor switching is not integrated — use a separate 4-pole breaker or neutral bar for TN systems. Energy limitation class 3.

Frequently asked questions

What is the breaking capacity of 5SY4363-6CC?

10 kA per EN 60898 at 400 V AC; 5 kA per UL 1077 / CSA C22.2 No. 235.

What is the width of 5SY4363-6CC in modular units?

3 modular width units, which is 54 mm.

Will 5SY4363-6CC drop into a panel specified for 5SY4116-6CC?

Both are 3-pole SENTRON MCBs with the same 3 MW footprint (54 mm), same depth and mounting. The key difference is the tripping curve: 5SY4363-6CC is B-curve, while 5SY4116-6CC is a different characteristic. Check the curve matches your load type before swapping.

Where can I buy 5SY4363-6CC and how is it quoted?

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

MPN
5SY4363-6CC