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Siemens 5SL4463-6 — 4-Pole MCB (DIN Rail)

Siemens 5SL4463-6 SENTRON MCB, 4P B 63A 400V 10kA

MPN5SL4463-6
Active

Siemens SENTRON 5SL4463-6, miniature circuit breaker, 4-pole, B-curve, 63 A, 400 V AC, 10 kA breaking capacity per EN 60898, 4 MW units.

Siemens 5SL4463-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4463-6 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityResidential buildings/infrastructure
5SL4463-6 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC63 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, DC (max.)72 V
5SL4463-6 — Protection
ParameterValue
Tripping characteristic (trip curve)B
Energy limitation class3
Overvoltage categoryIII
Pollution degree2
Degree of protection (IP)IP20, with connected conductors
5SL4463-6 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SL4463-6 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
5SL4463-6 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

The Siemens SENTRON 5SL4463-6 is a 4-pole miniature circuit breaker (MCB) with a B tripping characteristic, rated 63 A at 400 V AC, and a breaking capacity of 10 kA per EN 60898 and IEC 60947-2.

At 63 A, this MCB handles a 63 A continuous load at 30 °C ambient. Above that, you must derate: 59.67 A at 40 °C, 57.96 A at 45 °C, and 54.29 A at 55 °C. The 400 V AC rated voltage and 440 V maximum with multi-phase operation cover standard 230/400 V TN and TT systems across 50/60 Hz networks.

Sealable, halogen-free, and silicon-free construction supports use in clean-room or low-outgassing applications.

Frequently asked questions

What is 5SL4463-6's listed depth?

The 5SL4463-6 has a depth of 76 mm and an installation depth of 70 mm.

What is 5SL4463-6's listed width?

The 5SL4463-6 has a width of 72 mm, which corresponds to 4 modular width units.

Will 5SL4463-6 drop into a panel that was specified around 5SL4106-7CC without rewiring?

The 5SL4463-6 is a 4-pole, B-curve, 63 A MCB, while the 5SL4106-7CC is a different rating — verify the required current, pole count, and curve before substituting. The physical footprint (4 MW units) is standard for the SENTRON series, so panel cutout and DIN rail fit should match, but the electrical ratings differ.

MPN
5SL4463-6