The D curve (10–20× In) is the key selector here — it avoids nuisance tripping on transformer inrush or motor start, unlike a B or C curve that would drop out on the same surge. The 15 kA SCCR under IEC 60947-2 gives headroom for high-fault industrial mains; the 10 kA EN 60898 rating covers residential/commercial distribution boards.
Siemens 5SJ4163-8HG40 SENTRON MCB, D curve, 1P, 400 V AC, 10
MPN5SJ4163-8HG40
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Siemens SENTRON 5SJ4163-8HG40, miniature circuit breaker, D tripping characteristic, 1-pole, 400 V AC rated, 10 kA (EN 60898), 15 kA (IEC 60947-2), 18 mm width.
$155.91Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breakers |
| Brand name | SENTRON |
| Number of poles | 1 |
| Pole design | 1P |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic class | D |
| Overvoltage category | 3 |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Fastening method | on standard mounting rail |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Width | 18 mm |
| Height | 90 mm |
| Depth | 70 mm |
| Installation depth | 70 mm |
| Modular width units | 1 |
| Torque, min. | -40 °C |
| Torque, max. | 75 °C |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| IP protection class | IP20, with connected conductors, IP 40 in the handle range |
| Pollution degree | 3 |
| Halogen-free | Yes |
| Silicone-free | Yes |
Product details
Frequently asked questions
Does the 5SJ4163-8HG40 drop into a panel designed for the 5SL4363-7?
Both are 1-pole DIN-rail MCBs with similar dimensions, but the 5SJ4163-8HG40 uses a D curve while the 5SL4363-7 uses a different characteristic. Verify the tripping curve and breaking capacity against your panel's coordination study before substituting.
MPN
5SJ4163-8HG40