Siemens SENTRON 5SY8140-8 miniature circuit breaker, 1-pole, D characteristic, 25 kA at 400 V AC per IEC 60947-2, 18 mm wide, active production.
| Parameter | Value |
|---|---|
| Product designation | Miniature circuit breaker |
| Brand name | SENTRON |
| Number of poles | 1 |
| Pole design | 1P |
| Application suitability | Mechanical engineering / industry |
| Parameter | Value |
|---|---|
| Tripping characteristic class | D |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Fastening method | Quick assembly system |
| Combined terminal, top | Yes |
| Combined terminal, bottom | Yes |
| Width | 18 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation depth | 70 mm |
| Modular width units | 1 |
| Torque, min. | -40 °C |
| Torque, max. | 75 °C |
| Sealable | Yes |
| Parameter | Value |
|---|---|
| IP protection class | IP20, with connected conductors |
| Pollution degree | 3 |
| Halogen-free | Yes |
| Silicone-free | Yes |
The Siemens SENTRON 5SY8140-8 is a 1-pole miniature circuit breaker with a D tripping characteristic, rated for 25 kA breaking capacity at 400 V AC per IEC 60947-2.
Rated operating voltage 400 V AC single-phase, 440 V AC multi-phase, and up to 72 V DC. Breaking capacity at DC is 15 kA per IEC 60947-2; under UL 1077 it's 5 kA at 400 V AC. Pollution degree 3, overvoltage category III — suited for industrial panel main feeders or sub-distribution.
It is certified to IEC/EN 60947-2 and UL 1077. It is halogen-free and silicon-free. The operating temperature range is -40 °C to 75 °C.
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