Siemens SENTRON 5SJ4 series, miniature circuit breaker, 1-pole, D-curve, 63 A rated at 40 °C, 10 kA breaking capacity per EN 60898, 1 modular width (18 mm).
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breakers |
| Brand name | SENTRON |
| Number of poles | 1 |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic class | D |
| Rated value (EN 60898) | 10 kA |
| 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 | 110 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 |
The Siemens 5SJ4163-8HG41 is a SENTRON 5SJ4 miniature circuit breaker — 1-pole, D-curve, rated 63 A at AC 40 °C, with a 10 kA breaking capacity per EN 60898. At 63 A continuous, it suits branch circuits feeding a group of small motors or a heavy inductive load.
Rated 63 A at both 30 °C and 40 °C ambient. Derating starts at 45 °C: 61.1 A, then 59.9 A at 50 °C, 58.3 A at 55 °C, and 56.7 A at 60 °C.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
Both are 1-pole, 1-MW DIN-rail MCBs, so the mechanical footprint is identical. The 5SJ4163-8HG41 is a D-curve 63 A; the 5SY7140-8CC is a different curve and rating — verify the trip characteristic and ampacity match your circuit before substitution. No wiring change needed for the busbar or load connections.
70 mm from the DIN-rail mounting face to the front of the housing.
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