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Siemens 5SN6363-8CP — 3-Pole MCB (DIN Rail)

Siemens 5SN6363-8CP SENTRON MCB, 3P C-Curve, 6/10 kA

MPN5SN6363-8CP

Siemens SENTRON 5SN series, 3-pole miniature circuit breaker, C-curve, 400 V AC, 72 V DC, 6 kA (EN 60898) / 10 kA (IEC 60947-2), 3 modular width units.

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

Specifications

5SN6363-8CP — Identification
ParameterValue
Number of poles3
5SN6363-8CP — Protection
ParameterValue
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-210 kA
5SN6363-8CP — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Power loss per pole at rated current (AC, hot)5 W
Mechanical service life (operating cycles, typ.)10 000
Rated voltage (AC, single-phase)440 V
5SN6363-8CP — Mechanical
ParameterValue
Modular width units3
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C

Product details

It is rated for 400 V AC supply voltage and carries a dual breaking capacity: 6 kA according to EN 60898 and 10 kA per IEC 60947-2.

The 400 V AC rating covers three-phase line-to-line voltages common in industrial panels; the 440 V AC maximum with multi-phase operation gives headroom for lightly loaded transformers or nominal 400 V systems running high on the tolerance band. The 10 000 operating cycles typical mechanical life is standard for a panelboard MCB — not a switching device for frequent load cycling, but fine for protection duty where trips are rare.

Snap-on mounting to DIN rail EN 60715. The 54 mm width (3 modular units) and 70 mm installation depth mean it fits standard distribution boards without crowding adjacent breakers. Accepts solid conductors up to 35 mm² — enough for the feed side of a sub-distribution board.

Frequently asked questions

Where can I buy the 5SN6363-8CP and how do I get a price?

This part is 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 breaking capacity of the 5SN6363-8CP?

It carries a dual rating: 6 kA according to EN 60898 (residential/commercial standard) and 10 kA according to IEC 60947-2 (industrial standard). The IEC 60947-2 figure governs its SCCR contribution in an industrial panel.

Will the 5SN6363-8CP drop into a panel specified around the 5SL4363-7?

Yes — the 5SL4363-7 shares the same 76 mm depth, 54 mm width, 90 mm height, 70 mm installation depth, 3-pole form factor, and 3 modular width units. The key difference is the 5SL4363-7 carries a 10 kA rating under both EN 60898 and IEC 60947-2, while the 5SN6363-8CP is 6 kA (EN 60898) / 10 kA (IEC 60947-2). If your panel SCCR calculation relied on the EN 60898 value, verify coordination; otherwise it is a direct mechanical swap.

MPN
5SN6363-8CP