Siemens 5SJ4 Miniature Circuit Breaker
Key Specifications 5SJ4206-7HG42
| Spec | Value |
|---|---|
| Current Rating | 6 A |
| Voltage | 480/277 V AC |
| Number of Poles | 2 |
| Trip Curve | C (5–10× In) |
| Interrupt Rating | 10 kA |
| Mounting | DIN Rail |
| Actuator | Lever |
| Package | Bulk |
- IEC/EN 60898 Type C thermal-magnetic trip.
- Multi-standard agency approvals: CCC, CE, CSA, EAC, UL, VDE.
- RoHS non-compliant; sold as bulk packaging only.
5SJ4 Series — Two-Pole C-Trip Comparison
The reader must independently qualify all alternatives against their application before selection.
| MPN | Current | Voltage | Trip | Interrupt | Package | Similarity |
|---|---|---|---|---|---|---|
| 5SJ4206-7HG42 | 6 A | 480/277 V | C | 10 kA | Bulk | — |
| 5SJ4206-7HG41 | 6 A | 240 V | C | 14 kA | Bulk | 1.0 |
| 5SJ42068HG42 | 6 A | 480/277 V | D | 10 kA | Bulk | 1.0 |
| 5SJ4206-8HG41 | 6 A | 240 V | D | 14 kA | Box | 1.0 |
| 5SJ4203-7HG42 | 3 A | 480/277 V | C | 10 kA | Bulk | 1.0 |
| 5SJ4204-7HG42 | 4 A | 480/277 V | C | 10 kA | Bulk | 1.0 |
| 5SJ4201-7HG42 | 1 A | 480/277 V | C | 10 kA | Bulk | 1.0 |
| 5SJ4205-7HG42 | 500 mA | 480/277 V | C | 10 kA | Box | 1.0 |
| 5SJ4208-7HG42 | 8 A | 480/277 V | C | 10 kA | Box | 1.0 |
Why similar: All share the Siemens 5SJ4 frame, two-pole DIN-rail form factor, and bulk or box packaging. The -7 suffix designates C-trip; the -8 variants switch to D-curve (10–20× In) with higher 240 V interrupt ratings.
Engineering Notes
- The C-curve rating (5–10× nominal current) suits resistive and moderate inductive loads such as lighting branches and small motor feeders without excessive nuisance tripping on inrush.
- The 10 kA interrupt rating at 480/277 V is adequate for branch protection in most commercial and light-industrial panels; verify fault current available at the point of installation does not exceed this.
- All listed units are RoHS non-compliant; assess suitability for equipment destined for markets with substance restrictions.