Siemens SENTRON miniature circuit breaker, 5SL4440-7RC, 4-pole, C-curve, 40 A, 10 kA at 415 V AC, 1 MW width.
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Application suitability | Residential buildings/infrastructure |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Pole configuration | 4P |
| Rated current (In), AC | 40 A |
| Rated voltage, AC (multi-phase) | 440 V |
| Rated voltage, AC (single-phase) | 250 V |
| Rated voltage, DC (max.) | 72 V |
| Parameter | Value |
|---|---|
| Tripping characteristic (trip curve) | C |
| Energy limitation class | 3 |
| Overvoltage category | III |
| Pollution degree | 2 |
| Degree of protection (IP) | IP20, with connected conductors |
| Parameter | Value |
|---|---|
| Width in modular units | 1 |
| Width | 18 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Mounting position | any |
| Tightening torque, max. | 75 °C |
| Tightening torque, min. | -40 °C |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Parameter | Value |
|---|---|
| Mechanical service life (switching cycles, typ.) | 10 000 |
The C curve means it holds through moderate inrush (typical of small motors, transformers, or lighting banks) and trips fast on a hard short.
At 18 mm wide (1 MW), it occupies a single modular slot — critical when you're packing four poles into a tight enclosure. Mount in any position; pollution degree 2 (normal dry indoor environment) and overvoltage category III (distribution-level transients) cover the usual panel install.
We source the 5SL4440-7RC to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
Rated 10 kA at 415 V AC per EN 60898, which is the standard for miniature circuit breakers in residential and infrastructure installations.
No — the 5SL3340-7CC is a 3-pole unit in a 54 mm (3 MW) width, while the 5SL4440-7RC is 4-pole in an 18 mm (1 MW) width. The pole count and footprint differ, so the panel layout and wiring would need to change.
No related articles