Siemens 5SJ4 15A 2-Pole Miniature Circuit Breaker
Siemens 5SJ4 MCB Specifications
| Parameter | Value |
|---|---|
| Current Rating | 15A |
| Voltage | 480/277V AC |
| Breaking Capacity | 10kA |
| Poles | 2 |
| Trip Curve | C-Curve |
| Mounting | DIN Rail |
| Actuator | Lever |
| Approvals | CCC, CE, CSA, UL, VDE |
| Package | Bulk |
| RoHS | Non-compliant |
| Status | Active |
The 5SJ4 series uses a C-trip characteristic (5–10× In) for general-purpose protection of resistive and slightly inductive loads.
Alternate Siemens 5SJ4 15A Options
| Part Number | Trip Curve | Voltage | Similarity |
|---|---|---|---|
| 5SJ4218-7HG42 (primary) | C | 480/277V | — |
| 5SJ42187HG41 | C | 240V | 1.0 |
| 5SJ4218-8HG42 | D | 480/277V | 1.0 |
| 5SJ42188HG41 | D | 240V | 1.0 |
All four share 15A rating, 2-pole configuration, lever actuator, and DIN Rail mounting. The D-curve variants suit loads with higher inrush (transformers, motors); the C-curve suits general branch circuits.
Alternate Ratings in 5SJ4 2-Pole 480/277V Family
| Part Number | Current | Trip Curve | Package |
|---|---|---|---|
| 5SJ4210-7HG42 | 10A | C | Bulk |
| 5SJ4213-7HG42 | 13A | C | Box |
| 5SJ4211-7HG42 | 5A | C | Bulk |
| 5SJ4215-7HG42 | 1.6A | C | Box |
| 5SJ4214-7HG42 | 300mA | C | Box |
Higher current ratings (10A, 13A) ship in bulk packaging; lower ratings (1.6A, 300mA) use box packaging with UL489 approval.