Siemens 5SJ4206-7HG42 Miniature Circuit Breaker
5SJ4 Series Catalog Context
The 5SJ4206-7HG42 belongs to Siemens' 5SJ4 family of DIN-rail mounted miniature circuit breakers (MCBs). The alphanumeric prefix 5SJ4 indicates the series and mounting form factor; the hyphenated suffix encodes the specific configuration (pole count, voltage class, current rating, and trip characteristic). This page centers on the 6A, 2-pole, C-TRI variant rated for 480/277V AC systems.
Key Parameters
| Parameter | Value |
|---|---|
| Current Rating | 6A |
| Number of Poles | 2 |
| Actuator Type | Lever |
| Mounting Type | DIN Rail |
| Illumination | None |
| Encapsulation / Package | Bulk |
| Approval Agency | CCC, CE, CSA, EAC, UL, VDE |
| RoHS Status | RoHS non-compliant |
| Product Status | Active |
Similar Catalog Parts
The following in-catalog rows share the 5SJ4 series, 2-pole layout, lever actuation, DIN rail mounting, and bulk packaging. These are side-by-side comparison entries for screening only—none constitutes an approved interchange; the reader must perform their own qualification.
| MPN | Current Rating | Voltage Class | Trip | Encapsulation | Similarity |
|---|---|---|---|---|---|
| 5SJ4206-7HG42 | 6A | 480/277V | C-TRI | Bulk | — |
| 5SJ4206-7HG41 | 6A | 240V | C-TRIP | Bulk | 1.00 |
| 5SJ4206-8HG41 | 6A | 240V | D-TRIP | Box | 0.88 |
| 5SJ4201-7HG42 | 1A | 480/277V | C-TRI | Bulk | 0.84 |
| 5SJ4204-7HG42 | 4A | 480/277V | C-TRI | Bulk | 0.84 |
| 5SJ4203-7HG42 | 3A | 480/277V | C-TRI | Bulk | 0.84 |
| 5SJ4202-7HG42 | 2A | 480/277V | C-TRI | Bulk | 0.84 |
| 5SJ4202-8HG42 | 2A | 480/277V | D-TRI | Bulk | 0.84 |
Why these parts are similar
- 5SJ4206-7HG41 differs only in voltage class designation (240V vs 480/277V); same 6A rating, C-TRI characteristic, bulk packaging, and full approval set.
- 5SJ4206-8HG41 retains the 6A/2-pole/DIN-rail/lever layout but substitutes D-TRIP characteristic and Box packaging; the approval listing changes to UL489 and omits CSA.
- The 0.84-similarity rows share the 480/277V voltage class and C-TRI characteristic but step down to lower current ratings (1A–4A).
FAQ
What voltage system is the 5SJ4206-7HG42 designed for? The title indicates 480/277V AC, consistent with North American split-phase and three-phase supply classes.
What trip characteristic does the C-TRI designation represent? C-TRI denotes a C curve (5–10× instantaneous trip multiplier) with a thermal-magnetic mechanism; "TRI" reflects the thermal-magnetic tripping element used in the 5SJ4 series.
What mounting method does this MCB use? Standard DIN rail snap-fit mounting per the listed "Mounting Type."