Siemens SENTRON 5SL3 series, miniature circuit breaker, 4-pole (3P+N), C-curve, 63 A, 4.5 kA breaking capacity at 400 V AC, IP20.
| Parameter | Value |
|---|---|
| Overvoltage category | 3 |
| Parameter | Value |
|---|---|
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
The Siemens 5SL3663-7 is a SENTRON miniature circuit breaker rated 63 A at 400 V AC, with a C tripping characteristic and a 4.5 kA breaking capacity per EN 60898 and IEC 60947-2. Four poles (3P+N) with neutral switching built in — no separate link required.
IP20 with conductors connected, so it lives inside a closed panel or enclosure. Halogen-free and silicon-free construction, sealable for tamper-evident installations.
4.5 kA per both EN 60898 and IEC 60947-2 at 400 V AC. That is the standard interrupting rating for this class of MCB in residential and light commercial panels.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here.
The 5SL6563-7BB is a functionally similar 4-pole C-curve 63 A MCB from the same SENTRON family, but it belongs to the 5SL6 series which typically carries a higher breaking capacity (6 kA vs 4.5 kA). The 5SL3663-7 has a 4.5 kA rating per EN 60898. Panel footprint (4 width units) and terminal layout are the same, so it drops into the same DIN-rail position without rewiring.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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