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Siemens 5SL6363-7 — 3-Pole MCB (DIN Rail)

Siemens SENTRON 5SL6363-7 MCB, 3P C 63A 6kA 400V

MPN5SL6363-7
Active

Siemens SENTRON 5SL6363-7 miniature circuit breaker, 3-pole, C-curve, 63 A, 6 kA breaking capacity at 400 V AC, 3 modular width units (54 mm).

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

Specifications

5SL6363-7 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL6363-7 — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-26 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL6363-7 — 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)5.2 W
Mechanical service life (operating cycles, typ.)10 000
5SL6363-7 — 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
SealableYes
Accepts supplementary devicesYes
5SL6363-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

At 63 A per pole, this breaker handles a 3-phase load of roughly 43 kVA at 400 V (line-to-line), so it fits a feeder to a sub-distribution board or a large fixed load like a commercial HVAC unit. If your fault level at the installation point exceeds 6 kA — common near a transformer or in an industrial MCC — you need a higher-rated breaker or a current-limiting upstream device. The 5SL series also offers 10 kA variants (e.g., 5SL4363-7) for those scenarios.

Depth is 76 mm (70 mm installation depth), so it clears standard 80 mm deep enclosures. The terminals accept supplementary devices (shunt trip, auxiliary contacts) via the product extension interface.

Frequently asked questions

Where can I buy 5SL6363-7 and how is it quoted?

The 5SL6363-7 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will 5SL6363-7 drop into a panel designed for 5SL4363-7?

Yes — the 5SL6363-7 and 5SL4363-7 share identical dimensions (54 mm width, 76 mm depth, 90 mm height), same mounting position, same terminal layout, and the same 3-pole C-curve footprint. The only difference is breaking capacity: 6 kA vs 10 kA. No rewiring or panel modification is needed for the swap.

What compliance documentation does Siemens provide for 5SL6363-7?

The 5SL6363-7 carries IEC/EN 60898 and IEC 60947-2 ratings. It is halogen-free and silicon-free. Standard Siemens documentation includes CE declaration of conformity and, where applicable, UL/CSA certification files. RoHS and REACH compliance data is available on request.

MPN
5SL6363-7