Siemens SENTRON 5SL6 series, 5SL6240-7BB miniature circuit breaker, 2-pole, C-curve, 40 A rated, 6 kA breaking capacity, 400 V AC.
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Application environment | Residential buildings/infrastructure |
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | C |
| Overvoltage category | 3 |
| Parameter | Value |
|---|---|
| Width | 36 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Protection degree (IP) | IP20, with connected conductors |
The 5SL6240-7BB: Snaps onto standard 35 mm DIN rail. The 36 mm width (2 width units) and 76 mm depth leave room for adjacent breakers and busbars in a crowded enclosure. Terminal accepts solid or stranded copper from 0.75 to 25 mm²; tighten to 2.5–3 N·m. Mounting position is unrestricted — any orientation works, which simplifies panel layout. IP20 with connected conductors means it is protected against finger contact but not washdown; keep it inside a closed panel.
This part is sourced to order against an RFQ through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time.
Both are 2-pole SENTRON 5SL6 breakers with the same 36 mm width and 76 mm depth, so the mechanical fit is identical. The difference is the tripping curve: 5SL6240-7BB is C-curve (40 A), while 5SL6563-7BB is a different curve/rating. Verify the curve and ampacity match your circuit before swapping — the footprint is the same, but the protection characteristic must suit the load.
The depth is 76 mm, with an installation depth of 70 mm. This is standard for the 5SL6 series and fits most DIN-rail enclosures without protruding beyond the gland plate.
The terminal accepts solid conductors from 0.75 mm² up to 25 mm². Stranded conductors are also accepted in the same range.
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