Siemens SENTRON 5SY4425-7KK11, 4-pole miniature circuit breaker, C-curve, 25 A rated current at AC, 10 kA breaking capacity per EN 60898, 20 kA per IEC 60947-2.
| Parameter | Value |
|---|---|
| Brand name | SENTRON |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Pole configuration | 4P |
| Rated current (In), AC | 25 A |
| Rated voltage, AC (multi-phase) | 440 V |
| Rated voltage, AC (single-phase) | 440 V |
| Voltage type | AC |
| Parameter | Value |
|---|---|
| Tripping characteristic (trip curve) | C |
| Rated breaking capacity (Icn), per EN 60898 | 10 kA |
| Rated breaking capacity, per IEC 60947-2 | 20 kA |
| Breaking capacity, AC (UL 1077 / CSA C22.2 No.235) | 5 kA |
| Energy limitation class | 3 |
| Overvoltage category | III |
| Pollution degree | 3 |
| Degree of protection (IP) | IP20, with connected conductors |
| Neutral conductor switching | No |
| Touch protection | Yes |
| Parameter | Value |
|---|---|
| Width in modular units | 4 |
| Width | 72 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Fastening / mounting method | Quick assembly system |
| Mounting position | any |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Tightening torque, max. | 75 °C |
| Tightening torque, min. | -40 °C |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| Halogen-free | Yes |
| Silicone-free | Yes |
| Influence of ambient temperature (derating) | max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C |
Snaps onto DIN rail via the quick assembly system, mounts in any position. Occupies 4 modular width units — roughly 72 mm wide — so plan for 4 TE on the rail. Installation depth is 70 mm, overall depth 76 mm. Combined top and bottom terminals accept incoming and outgoing wiring from either end. Sealable for tamper-proofing after commissioning.
This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request with quantity and delivery needs; availability and current pricing are confirmed at quote time.
Both are 4-pole SENTRON MCBs on the same DIN-rail footprint, so mechanical fit is identical. The key difference is rating: 5SY4425-7KK11 is a 25 A C-curve, while 5SY4304-7CV is a lower-current variant (exact rating not in this evidence). Verify the load current and trip curve match before swapping — the rail space and wiring terminals are compatible.
The breaker is halogen-free and silicon-free. It carries ratings per EN 60898 (10 kA) and IEC 60947-2 (20 kA), and is classified per IEC 81346-2 and DIN EN 61346-2 as function F. Standard Siemens documentation includes CE declaration of conformity and product-specific test certificates — request these with the RFQ.
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