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Siemens 5SY4363-8CC — 3-Pole MCB (DIN Rail)

Siemens SENTRON 5SY4363-8CC MCB, 3P D 63 A 10 kA

MPN5SY4363-8CC

Siemens SENTRON 5SY4363-8CC, 3-pole miniature circuit breaker, D tripping characteristic, 63 A rated current, 10 kA breaking capacity per EN 60898, 400 V AC.

Siemens 5SY4363-8CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4363-8CC — Identification
ParameterValue
Design / model code5SY4CC
Brand nameSENTRON
Number of poles3
Suitability for operationMechanical engineering / industry
5SY4363-8CC — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per EN 6089810 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree3
5SY4363-8CC — Electrical
ParameterValue
Rated current (AC)400 V
Rated voltage (AC, multi-phase)440 V
Rated frequency50/60 Hz
5SY4363-8CC — Mechanical
ParameterValue
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
SealableYes
5SY4363-8CC — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

Product details

Siemens SENTRON 5SY4363-8CC — 63 A D-curve MCB, 3-pole

Its 10 kA breaking capacity per EN 60898 covers most industrial panel fault levels; for UL 1077 / CSA C22.2 No.235 installations, the interrupting rating is 5 kA.

Integration notes

Rated for any mounting position; installation depth is 70 mm plus the 76 mm overall depth. The combined terminal at top and bottom accepts a single conductor per pole — no neutral switching on this 3P variant. Ambient temperature derating applies above 55 °C (95 % RH up to 55 °C, 55 % RH at 70 °C, 35 % RH at 75 °C).

Designed for mechanical engineering and industrial applications per the manufacturer. Rated for 50/60 Hz, AC only. Maximum DC voltage is 72 V. The product carries IEC/EN 60898 and UL 1077 / CSA C22.2 No.235 certifications, covering most global panel standards.

Frequently asked questions

Where can I buy 5SY4363-8CC and get a price?

The 5SY4363-8CC is sourced to order against an RFQ. Submit a request for current pricing and availability.

What is the depth of 5SY4363-8CC?

The overall depth is 76 mm; the installation depth (behind the panel face) is 70 mm.

Will 5SY4363-8CC drop into a panel specified for 5SY7140-8CC?

Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, but the 5SY7140-8CC is a different rating and characteristic. The 5SY4363-8CC is a 63 A D-curve; the 5SY7140-8CC is a 40 A B-curve. Physically they share the same width (54 mm) and mounting system, so no rewiring of the busbar or enclosure is needed — but the protection curve and ampacity are different. Verify coordination before substitution.

What compliance documentation does Siemens provide for 5SY4363-8CC?

The breaker carries IEC/EN 60898 and UL 1077 / CSA C22.2 No.235 approvals. The housing is halogen-free and silicon-free. Standard Siemens declarations (CE, UKCA, RoHS) are available per the product documentation.

MPN
5SY4363-8CC