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Siemens 5SL1363-7MB — 3-Pole MCB (DIN Rail)

Siemens 5SL1363-7MB SENTRON MCB, 63A 3P C-Curve, 3kA

MPN5SL1363-7MB

Siemens SENTRON 5SL1363-7MB miniature circuit breaker, 3-pole, C-curve, 63 A, 3 kA breaking capacity per IEC 60947-2, 440 V AC, 3 MW wide.

Siemens 5SL1363-7MB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL1363-7MB — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL1363-7MB — Protection
ParameterValue
Tripping characteristic (curve)C
Breaking capacity per IEC 60947-23 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree2
5SL1363-7MB — 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)4.8 W
Mechanical service life (operating cycles, typ.)4 000
Rated voltage (AC, single-phase)253 V
5SL1363-7MB — 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
5SL1363-7MB — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

Its 3 kA breaking capacity per IEC 60947-2 at 230/400 V AC is the fault-interrupt rating that governs SCCR coordination downstream; on a 10 kA prospective fault current this breaker is not the main service entrance device but works behind a current-limiting upstream fuse or higher-rated MCB. The 3-pole design (3 MW, 54 mm wide) switches all three phases simultaneously, so it fits a standard 3-phase distribution board without a neutral pole.

Mounting and integration — DIN-rail fit and panel constraints

The 54 mm width (3 modular units) matches the standard 18 mm/module grid, so it occupies three adjacent positions. Mounting position is any — vertical, horizontal, or flat — which simplifies layout in tight sub-distribution boards. IP20 with connected conductors — finger-safe from the front but not washdown-rated. Sealable design (can be padlocked in OFF position) for lockout/tagout compliance.

Frequently asked questions

Where can I buy the 5SL1363-7MB and get a price?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the closest functional second-source for 5SL1363-7MB?

The 5SL4363-7 is the closest peer — same 63 A, 3-pole, C-curve, same footprint. The difference is a 10 kA breaking capacity (vs 3 kA) and 10 000-cycle mechanical life (vs 4 000). It drops into the same panel position without rewiring.

What compliance documentation does Siemens provide for 5SL1363-7MB?

The breaker is halogen-free and silicon-free. Standard Siemens SENTRON documentation includes the IEC 60947-2 declaration and CE marking. Specific RoHS/REACH declarations are available from the manufacturer upon request.

MPN
5SL1363-7MB