Siemens 5SJ4110-7HG41 Miniature Circuit Breaker
Catalog comparison — Siemens 5SJ4 single-pole 10 A
The following table aligns the primary part against in-catalog peers sharing the same 5SJ4 family, current rating, and one-pole / DIN-rail construction. All listed parts require independent qualification before use.
| Parameter | 5SJ4110-7HG41 (primary) | 5SJ4110-7HG42 | 5SJ4110-7HG40 | 5SJ4110-8HG41 |
|---|---|---|---|---|
| Poles | 1 | 1 | 1 | 1 |
| Voltage (V) | 240 | 277 | 240 | 240 |
| Current rating (A) | 10 | 10 | 10 | 10 |
| Breaking capacity | 14 kA | 10 kA | 14 kA | 14 kA |
| Trip characteristic | C | C | same phase | D |
| Mounting | DIN Rail | DIN Rail | DIN Rail | DIN Rail |
| Actuator | Lever | Lever | Lever | Lever |
| Illumination | None | None | None | None |
| Approvals | CCC, CE, CSA, EAC, UL489, VDE | CCC, CE, CSA, EAC, UL489, VDE | CCC, CE, CSA, EAC, UL, VDE | CCC, CE, CSA, EAC, UL, VDE |
| Package | Bulk | Bulk | Bulk | Bulk |
| Similarity | — | 1.0 | 1.0 | 1.0 |
Why each peer is catalog-similar
- 5SJ4110-7HG42 carries the same C-characteristic and 10 A rating but is rated for 277 V with a 10 kA breaking capacity. The voltage and short-circuit rating difference is evident in the part-number suffix.
- 5SJ4110-7HG40 matches voltage, current, and 14 kA but omits UL489 from its approval listing; it substitutes UL and retains VDE, CCC, CE, CSA, and EAC.
- 5SJ4110-8HG41 shares voltage, current, and 14 kA breaking capacity but uses a D-trip characteristic, providing higher magnetic pick-up for inductive loads compared with the C-curve of the primary.
5SJ4 family position and 5SJ4110-7HG41 parameters
The 5SJ4 prefix identifies Siemens' 5SJ4 industrial miniature circuit breaker series. Within Siemens' catalog nomenclature, the digit immediately following the series designation typically encodes the number of poles and mounting variant. The suffix digits specify voltage class, breaking capacity, and thermal-magnetic trip setting.
| Attribute | Value |
|---|---|
| Series | 5SJ4 |
| Poles | 1 |
| Voltage | 240 V AC |
| Current rating | 10 A |
| Trip characteristic | C (general-purpose, ~5–10 × Iₙ magnetic) |
| Breaking capacity | 14 kA |
| Mounting | DIN Rail |
| Actuator | Lever |
| Approvals | CCC, CE, CSA, EAC, UL489, VDE |
| Illumination | None |
| Product status | Active |
| RoHS compliance | Non-compliant |
Engineering verification checklist
- System voltage is within 240 V AC operating range
- 10 A rating matches branch load calculation and does not exceed conductor ampacity
- C-trip characteristic is appropriate for the load type (resistive/lighting branch; not motor-only without coordination review)
- 14 kA breaking capacity exceeds available short-circuit current at point of installation
- Required agency certifications are present for the jurisdiction (CCC for China, CSA for Canada, UL489 or VDE for Europe/North America)
- DIN Rail mounting profile matches panel busbar or enclosure rail type
- Single-pole configuration provides ungrounded-conductor protection only; neutral and protective earth coordination assessed separately