| Product Type | Isolating Switch with Release |
| Model | DPX-IS 250 |
| Manufacturer | Legrand |
| Reference Number | 026645 |
| EAN Code | 3245060266455 |
| Number of Poles | 4P (4-pole) |
| Rated Permanent Current | 100 A |
| Maximum Rated Operation Voltage | 690 V AC |
| Rated Operating Voltage Range | 230-690 V |
| Rated Permanent Current at AC-21 400V | 100 A |
| Rated Short-time Withstand Current | 9 kA |
| Rated Operation Power at AC-23 400V | 40 kW |
| Conditioned Rated Short-circuit Current | 100 kA |
| Standard Compliance | IEC 60947-3 |
| Category of Use | AC 23 A |
| Number of Auxiliary Contacts (Normally Closed) | 0 |
| Number of Auxiliary Contacts (Normally Open) | 0 |
| Number of Auxiliary Contacts (Change-over) | 3 |
| Control Element Type | Rocker Lever |
| Control Element Color | Black |
| Handle Orientation | Right-hand Side |
| Device Construction | Complete Device in Housing |
| Electrical Connection Type | Screw Connection with Cage Terminals |
| Degree of Protection (Front) | IP20 |
| Motor Drive | Not Included (Optional) |
| Voltage Release | Optional |
| Mounting Options | Rail Mounting or Plate Mounting in XL³ Enclosures |
| Floor Mounting Suitable | Yes |
| Front Mounting 4-hole Suitable | Yes |
| Distribution Board Installation Suitable | Yes |
| Interlockable | Yes |
| Main Switch Version | Yes |
| Maintenance/Service Switch Version | Yes |
| Safety Switch Version | Yes |
| Emergency Stop Installation Version | Yes |
| Reversing Switch Version | No |
| Safety Features | Integrated Padlock in Handle, Visible Isolation, Positive Contact Action |
| Terminal Type | Cage Terminals with Supplied Terminal Shields |
| Electrical Auxiliaries | Accepts Residual Current Relay with Separate Coils |