Siemens SENTRON 5SP4 series, miniature circuit breaker, 2-pole, D tripping characteristic, 40 A rated current, 10 kA breaking capacity per EN 60898, 20 kA per IEC 60947-2, 400 V AC, tunnel terminals top and bottom, 70 mm installation depth.
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 2 |
| Parameter | Value |
|---|---|
| Tripping characteristic class | D |
| Parameter | Value |
|---|---|
| Installation depth | 70 mm |
| Parameter | Value |
|---|---|
| Tunnel terminals top | Yes |
| Design of the product | 5SP Miniature circuit breakers |
| Number of poles (Note) | 2P |
| Tunnel terminals bottom | Yes |
| Circuit-breaker (Design) | 5SP4 |
| Current (at AC) | 40 A |
| Acc. to EN 60898 / rated value | 10 kA |
| Acc. to IEC 60947-2 / rated value | 20 kA |
| Supply voltage (at AC) | 400 V |
It breaks fault currents up to 10 kA per EN 60898 and 20 kA per IEC 60947-2 at 400 V AC.
Installation depth is 70 mm, which matches the common SENTRON 5SL/5SP envelope — no extra clearance needed behind the panel door. Tunnel terminals top and bottom accept copper conductors without bootlace ferrules for routine wiring.
Mechanically yes — same 70 mm depth, same DIN-rail mount. Electrically no: the 5SP4240-8 is 2-pole, 40 A, D-curve, while the 5SL4120-7CC is 1-pole, 20 A, C-curve. The wiring and load calculations are different.