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Siemens 5SL6463-7MB — Miniature Circuit Breakers (MCB)

Siemens SENTRON 5SL6463-7MB MCB, 4P C 63A 400V 6kA

MPN5SL6463-7MB
Active

Siemens SENTRON 5SL6463-7MB miniature circuit breaker, 4-pole, C-curve, 63 A, 400 V AC, 6 kA per EN 60898, 4 MW DIN-rail mount.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SL6463-7MB — Ratings
ParameterValue
Overvoltage categoryIII
5SL6463-7MB — Mechanical
ParameterValue
Width72 mm
Height90 mm
Depth76 mm

Product details

The 5SL6463-7MB: Depth is 76 mm, height 90 mm, width 72 mm (4 MW). The 4 MW width means it fills four 18 mm DIN-rail slots — verify busbar and comb-bridge compatibility; a 4-pole busbar is required, not a 3-pole with a jumper. Mounts in any position. Sealable, halogen-free, silicon-free enclosure — relevant for clean-room or marine panel specs where outgassing is restricted.

C-curve (5–10× In magnetic trip) suits general-purpose distribution — lighting, socket circuits, small motor branch circuits where inrush is moderate. 6 kA breaking capacity at 400 V AC per EN 60898 is the standard residential/commercial light-industrial rating; for higher fault-current panels (10 kA+), step up to the 5SL4 series. Accepts auxiliary switches, shunt trips, and undervoltage releases (product extension installable supplementary devices = Yes).

shows Active status — this is a current-production Siemens SENTRON catalog item. No EOL notice, no LTB window. For volume BOM commitments or blanket orders, submit an inquiry for current pricing and lead time.

Frequently asked questions

What are the key ratings of the 5SL6463-7MB?

4-pole, C-curve, 63 A, 400 V AC, 6 kA breaking capacity per EN 60898. Occupies 4 modular width units (72 mm) on DIN rail. Depth 76 mm, height 90 mm.

How does the 5SL6463-7MB compare to the 5SL4363-7?

The 5SL4363-7 is a 3-pole version (54 mm wide, 3 MW) with a 10 kA breaking capacity per both EN 60898 and IEC 60947-2, versus the 5SL6463-7MB's 4-pole 72 mm width and 6 kA rating. The 5SL4363-7 also has a higher per-pole power loss of 5 W vs 4.4 W. They share the same depth (76 mm) and height (90 mm), same C-curve, same mounting position flexibility, and same accessory compatibility. A panel wired for a 3-pole 5SL4363-7 cannot accept the 4-pole 5SL6463-7MB without busbar and width changes.

Where can I buy the 5SL6463-7MB and how is it quoted?

Sourced through independent industrial-automation distribution. Quoted to order against an RFQ; availability and current pricing confirmed at quote time. Submit an inquiry for volume or blanket-order requirements.

MPN
5SL6463-7MB