Siemens SENTRON 5SL3214-7, miniature circuit breaker, 2-pole, C characteristic, 0.3 A rated current, 400 V AC, 4.5 kA breaking capacity per IEC 60898 and IEC 60947-2.
| 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 | 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 5SL3214-7 is a 2-pole miniature circuit breaker from the SENTRON series, rated 0.3 A at 400 V AC with a C tripping characteristic. The C-curve means it holds 5–10× rated current for short overloads before the magnetic trip fires — standard for motor and light industrial loads where inrush isn't extreme. At 40 °C ambient the rated current derates to 0.28 A; at 55 °C it drops to 0.25 A.
Mounting position any, so vertical or horizontal busbars work. Touch protection built in.
Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.
Both are 2-pole SENTRON MCBs on the same 36 mm DIN-rail footprint, so the mechanical swap is straightforward. The deciding factor is the rating: the 5SL3214-7 is a 0.3 A C-curve, while the 5SL3116-6MB carries a different current and characteristic — verify the branch circuit's load and coordination study before substituting.
The part carries IEC 60898 and IEC 60947-2 certifications for breaking capacity. It is halogen-free and silicon-free. For RoHS, REACH, and UL declarations, the manufacturer provides compliance documentation on request.
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