Siemens SENTRON 5SL3220-6MB, miniature circuit breaker, 2-pole, B-curve, 20 A rated, 4.5 kA breaking capacity at 400 V AC, 2 modular width units.
| 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 | B |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Modular width units | 2 |
| Width | 36 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Min. | -40 °C |
| Max. | 75 °C |
| Protection degree (IP) | IP20, with connected conductors |
| Parameter | Value |
|---|---|
| Pollution degree | 2 |
| Parameter | Value |
|---|---|
| Energy Limitation Class | 3 |
The Siemens SENTRON 5SL3220-6MB is a 2-pole miniature circuit breaker rated 20 A with a B tripping characteristic, breaking 4.5 kA at 400 V AC per EN 60898.
Snap-on mounting to DIN rail EN 60715. Accepts any mounting position. IP20 with conductors connected — suitable for enclosed panel use. Sealable, halogen-free, silicon-free construction. Overvoltage category III, pollution degree 2.
The 5SL3220-6MB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
The closest functional peer is the 5SL4120-7CC, a 1-pole C-curve 20 A breaker with 10 kA breaking capacity. The key difference: the 5SL3220-6MB is 2-pole B-curve at 4.5 kA, while the 5SL4120-7CC is single-pole C-curve at 10 kA. The 5SL3220-6MB occupies 2 modular units (36 mm) versus 1 unit (18 mm) for the 5SL4120-7CC. They are not drop-in replacements; the pole count, trip curve, and breaking capacity differ.
No. The 5SL3220-6MB is 2-pole and 36 mm wide (2 modular units), while the 5SL4106-7CC is 1-pole and 18 mm wide (1 modular unit). The depth (76 mm) and height (90 mm) are identical, but the width and pole count differ, so it will not drop into a 1-pole slot without panel modification.
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