Interpact INS1250, 4p, 1250A cast encapsulated circuit breaker. Series: Compact - Product name: INS1250 - Product or component type: Load break switch - Description of poles: 4P - Network connection: AC, DC - Network frequency: 50/60 Hz - Rated operating current Ie: DC-21A : 1250 A DC 250 V 4 poles in series, AC-22A : 1250 A AC 50/60 Hz 500/525 V, AC-21A : 1250 A AC 50/60 Hz 220/240 V, AC-22A : 1250 A AC 50/60 Hz 380/415 V, DC- 23A : 1250 A DC 125 V 2 poles in series, AC-21A : 1250 A AC 50/60 Hz 500/525 V, AC-22A : 1250 A AC 50/60 Hz 440/480 V, DC-22A : 1250 A DC 250 V 4 poles in series, AC-23A : 1250 A AC 50/60 Hz 440/480 V, DC-23A : 1250 A DC 250 V 4 poles in series, AC-23A : 1250 A AC 50/60 Hz 220/240 V, DC-22A : 1250 A DC 125 V 2 poles in series, AC-23A : 1250 A AC 50/60 Hz 500/525 V , AC-22A: 1250A AC 50/60Hz 660/690V, AC-21A: 1250A AC 50/60Hz 380/415V, AC-22A : 1250A AC 50/60Hz 480V NEMA, AC-21A : 1250A AC 50/60Hz 440/480V, AC-23A : 1250A AC 50/60Hz 380/415 V, AC-21A : 1250 A AC 50/60 Hz 660/690 V, AC-22A : 1250 A AC 50/60 Hz 220/240 V, AC-21A : 1250 A AC 50/60 Hz 480 V NEMA, AC -23A: 1250A AC 50/60Hz 480V NEMA, AC-23A: 1250A AC 50/60Hz 660/690 V, DC-21A : 1250 A DC 125 V 2 poles in series - nominal short-circuit breaking capacity. Icm: 75 kA 690 V AC 50/60 Hz with upstream protective disconnector, 75 kA 690 V AC 50/60 Hz disconnector alone - Rated operating voltage Ue: 690 V AC 50/60 Hz, 250 V DC - Plus contact indicator: yes - visible break: no.
| Property | Value |
| Number of poles: | 4.0 |
| Operating power: | 710.0 kW |
| Number of auxiliary contacts as normally closed: | 0.0 |
| Number of auxiliary contacts as normally open: | 0.0 |
| Number of auxiliary contacts as changeover contacts: | 4.0 |
| Rated continuous current Iu:< /td> | 1250.0 A |
| Max. Rated operating voltage Ue at AC: | 690.0 V |
| Emergency stop device version: | no |
| Protection class (IP), front: | IP40 |
| Connection type main circuit: | Screw connection |
| Device design: | Built-in device, fixed installation technology |
| Design of the operating element: | long rotary handle |
| Suitable for floor mounting: | yes |
| Integrated motor drive: | no |
| Suitable for front mounting 4-hole: | yes |
| Version as maintenance -/Repair switch: | yes |
| Voltage release optional: | no |
| Suitable for front mounting central: | yes |
| Suitable for intermediate installation: | no |
| Suitable for distribution board installation: | yes |
| Version as main switch: | yes |
| Execution as safety switch: | no |
| Motor drive optional: | no |
| Lockable: | yes |
| Version as reversing switch: | no |
| Rated short-time withstand current Icw: | 50.0 kA |
| Color of the actuating element: | black |
| 0.0 to 690.0 V | |
| Rated continuous current at AC-21, 400 V: | 1250.0 A |
| Number of switches: | 1.0 |
| Rated continuous current at AC-23 , 400 V: | 1250.0 A |
