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Siemens 5SL4363-7 — Miniature Circuit Breakers (MCB)

Siemens 5SL4363-7 3-Pole MCB, 63A, C-Curve, 10kA DIN Rail

MPN5SL4363-7
Active

Siemens SENTRON 5SL4363-7, 3-pole miniature circuit breaker, 63A, C-curve, 400 V AC, 10 kA according to IEC 60898 and IEC 60947-2, halogen-free, silicon-free, IP20, 54 mm wide, 76 mm deep.

$335.12Ref. 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

5SL4363-7 — Ratings
ParameterValue
Overvoltage categoryIII
5SL4363-7 — Mechanical
ParameterValue
Width54 mm
Height90 mm
Depth76 mm

Product details

Product Introduction

The 5SL4363-7: Siemens SENTRON MCB, 3-pole, 63A, C-curve, 400V AC, 10 kA breaking capacity.

DIN Rail Fit and Mechanical Constraints

Width 54 mm (3 modular units), depth 76 mm, height 90 mm, installation depth 70 mm. Any mounting position, sealable, IP20.

Electrical Performance and Application Notes

Rated 400 V AC, 440 V max multi-phase, 50/60 Hz. Tripping characteristic C. Breaking capacity 10 kA. Power loss 5 W per pole.

Frequently asked questions

Does the 5SL4363-7 fit in a standard 18-module DIN rail enclosure?

Yes. Width is 54 mm (3 modular units), depth 76 mm, installation depth 70 mm. The any-position mounting and 70 mm installation depth are compatible with common 18-module enclosures that accept 3-pole MCBs of standard profile.

Is the halogen-free and silicon-free specification verified for cleanroom or food processing environments?

Yes. The product is explicitly halogen-free and silicon-free. Those are listed as construction materials attributes, compliant with RoHS directives. For OSHA exposure limits, the silicone-free aspect reduces contamination risk in controlled environments.

Is the IP20 rating sufficient for dust and moisture protection in a used equipment resale environment?

IP20 with conductors connected means the breaker is touch-safe (finger protection) but not dust-tight or moisture-resistant. The sealable design helps if the enclosure has gasketed doors, but for resale in humid or dusty conditions, the overall enclosure IP rating must be higher. This MCB alone is not rated for ingress of dust or water.

Does the combination of overvoltage category III and pollution degree 2 ensure reliable behavior under industrial transients?

Yes. Overvoltage category III is typical for fixed installations downstream of the main distribution board — it handles impulse voltages up to 4 kV at 400 V. Pollution degree 2 assumes non-conductive pollution with temporary condensation. Together they cover the transient environment of most industrial control cabinets.

MPN
5SL4363-7