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Siemens 5SY4363-8CC — Miniature Circuit Breakers (MCB)

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)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SY4363-8CC — Ratings
ParameterValue
Overvoltage categoryIII
5SY4363-8CC — Mechanical
ParameterValue
Width54 mm
Height90 mm
Depth76 mm

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