Power circuit-breaker for trafo/generator/installation protection ABB 1SDA121120R1: number of auxiliary changeover contacts 4, number of poles 3. These open power circuit-breakers protect installations to EN standards for power circuit-breakers and switch disconnectors. They suit different requirements of DC and AC networks. Power circuit breaker for protecting and switching power circuits in low-voltage switchboards. Degree of protection IP30.
| Series | E4.2V/E12 2500 Ekip Dip LSI 3p FHR |
|---|---|
| Electrical | |
| Power loss | 425 W |
| Short-time delayed short-circuit release range | 1.5–25 kA |
| Rated voltage | 1.2 kV |
| Rated continuous current Iu | 2.5 kA |
| Number of poles | 3 |
| Number of auxiliary changeover contacts | 4 |
| Main circuit connection type | Back side |
| Main electrical circuit connection type | Screw connection |
| With built-in undervoltage release | No |
| Mechanical | |
| DIN rail mounting (O-type) optional | No |
| Suitable for DIN-rail mounting | No |
| Operating conditions | |
| IP protection rating | IP30 |
| Other | |
| Setting range of overload protection device | 1–2.5 kA |
| Instantaneous short-circuit release setting range | 3.75–37.5 kA |
| Complete device with protection block | Yes |
| Design | Built-in device fixed built-in technique |
| Motor drive optional | Yes |
| Trip indicator present | Yes |
| Control element type | Push button |
| Built-in ground fault protection | No |
| Built-in motor drive | No |
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