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

5SY4363-5 SENTRON MCB, 3P 63A Char. A

MPN5SY4363-5

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Siemens SENTRON, Miniature circuit breaker, 5SY4363-5, 3-pole 63 A, tripping characteristic A, breaking capacity 10/15 kA.

$541.08Ref. price · indicative, final on quote

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Siemens 5SY4363-5 datasheet (PDF)

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

Specifications

5SY4363-5 — Identification
Parameter	Value
Brand name	SENTRON
Number of poles	3
Pole configuration	3P
Suitability for operation	Mechanical engineering / industry

5SY4363-5 — Protection
Parameter	Value
Tripping characteristic (curve)	A
Overvoltage category	III
IP protection class	IP20, with connected conductors
Pollution degree	3

5SY4363-5 — Electrical
Parameter	Value
Rated current (AC)	63 A
Rated voltage (AC, multi-phase)	440 V
Neutral conductor switching	No

5SY4363-5 — Mechanical
Parameter	Value
Modular width units	3
Mounting position	any
Width	54 mm
Height	90 mm
Depth	76 mm
Installation depth	70 mm
Terminal tightening torque, max.	75 °C
Terminal tightening torque, min.	-40 °C
Combined terminal, top	Yes
Combined terminal, bottom	Yes
Fastening method	Quick assembly system
Sealable	Yes

5SY4363-5 — Environmental
Parameter	Value
Halogen-free	Yes
Silicone-free	Yes
Influence of surrounding temperature	max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

Product details

Siemens 5SY4363-5

Rated at 63 A at 35/40 °C, with a derating curve provided for higher ambient temperatures. Standardised to IEC/EN 60898-1, IEC/EN 60947-2, and UL1077—covers both North American and European approvals on a single BOM line. Installs via quick assembly system into any mounting position. IP20 with conductors connected; sealable for dust/tamper protection in harsh environments. Halogen-free and silicon-free, which matters where outgassing during a fault can't be tolerated (confinement zones, clean rooms). Lifecycle status is current production—no end-of-life watch.