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Siemens 5SL6363-7RC — Miniature Circuit Breakers (MCB)

Siemens 5SL6363-7RC SENTRON MCB, 63 A, 3-Pole, C-Curve, 7.5

MPN5SL6363-7RC
Active

Siemens SENTRON 5SL6363-7RC miniature circuit breaker, 63 A, 3-pole, C characteristic, 7.5 kA breaking capacity per EN 60898, 415 V AC, 50/60 Hz, 3 MW wide.

$131.51Ref. price · indicative, final on quote
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

5SL6363-7RC — Ratings
ParameterValue
Overvoltage categoryIII
5SL6363-7RC — Mechanical
ParameterValue
Width54 mm
Height90 mm
Depth76 mm

Product details

The C-curve trips between 5 and 10 times the rated current, so a 63 A unit clears a fault between 315 A and 630 A, which is a typical zone for branch-circuit protection in commercial and residential infrastructure panels. Three-pole construction covers a three-phase load or three single-phase circuits sharing a common trip. Single-phase operation is rated at 250 V AC. The DC rating tops out at 72 V, so this is primarily an AC device — not your first choice for a DC string combiner box.

Sealable design allows padlocking the toggle in the off position for lockout/tagout. Pollution degree 2 (non-conductive pollution with occasional condensation) covers the typical dry indoor panel.

Mechanical endurance and environmental range

Rated for 10,000 mechanical operating cycles typical — that is the toggle-switch life, not the electrical endurance under load. Storage temperature is the same as operating, meaning the -40 °C limit governs shipping and idle storage as well.

Frequently asked questions

How do I get current pricing and availability for 5SL6363-7RC?

Pricing and availability are confirmed at quote time. Submit an RFQ through the storefront; the quote will reflect current market pricing and factory lead time for this active-production part.

When sourcing 5SL6363-7RC, what is the closest functional alternative — 5SL4363-7?

The 5SL4363-7 is the closest sibling in the same SENTRON 5SL family. Both are 63 A, 3-pole, C-curve MCBs with the same 76 mm depth and 54 mm width. The key difference: the 5SL4363-7 carries a 10 kA breaking capacity per EN 60898 and IEC 60947-2, versus the 5SL6363-7RC's 7.5 kA per EN 60898. If your panel's prospective short-circuit current is above 7.5 kA, the 5SL4363-7 is the safer fit. The 5SL4363-7 also has an energy limitation class of 3, while the 5SL6363-7RC does not carry that rating. Physically, they share the same footprint and mounting — no rewiring needed for a swap.

What is 5SL6363-7RC's listed depth (76 mm) on this component line?

The depth is 76 mm, with an installation depth of 70 mm behind the panel face. That 6 mm difference accounts for the front toggle and terminal clearance. The width is 54 mm (3 modular units) and the height is 90 mm.

Will 5SL6363-7RC drop into a panel that was specified around 5SL4363-7 without rewiring?

Yes, the two breakers share identical dimensions — 76 mm depth, 54 mm width (3 MW), 90 mm height, and the same DIN-rail mounting position. The terminal layout and pole spacing are the same. The swap is a direct mechanical replacement. The only consideration is the lower breaking capacity (7.5 kA vs 10 kA), so verify that your fault level does not exceed 7.5 kA at the breaker location.

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

The breaker is designed to EN 60898 (the 7.5 kA rating is per that standard). It carries pollution degree 2 and overvoltage category III ratings. The construction is halogen-free and silicon-free. For specific certificates (UL, CSA, CE, UKCA, EAC, RoHS, REACH), the manufacturer's declaration is available on request through the RFQ process — the evidence does not list the full certification set.

MPN
5SL6363-7RC