Load-break switch 250A, size 3, 3-pole, front drive left, complete device with direct drive, gray, flat connection. Load-break switch 3KD up to 1600 A as a powerful main, EMERGENCY STOP or repair switch. Load-break switches 3KD up to 1600 A from Siemens offer reliable personal protection and guarantee high system availability in industry, infrastructure and buildings. As a main, EMERGENCY STOP or repair switch, load-break switches 3KD reliably switch electrical equipment under load and offer a safety disconnection function and distance in low-voltage circuits. 1. Reliable protection against electrical accidents. 2. Robust technology for high system availability. 3. Versatile with variable connection and drive types. 4. Easy retrofitting of additional functions thanks to extensive accessories. 5. Fast installation on the DIN rail for sizes up to 200 A. 6. Efficient engineering through extensive CAx data. 7. Uncomplicated documentation with the manual configurator. 8. Suitable for wind power and solar systems. www.siemens.de/schaltgeraete. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe, efficient electrical infrastructure in buildings and industry.
| Property | Value |
| Number of poles: | 3 |
| Rated operating power at AC-23, 400 V: | 132 kW |
| Number of auxiliary contacts as normally closed: | 6 |
| Number of auxiliary contacts as normally open: | 6 |
| Rated continuous current Iu: | 250 A |
| Max. Rated operating voltage Ue at AC: | 1000 V |
| Version as EMERGENCY STOP device: | no |
| Suitable for floor mounting: | yes |
| Integrated motor drive: | no |
| Suitable for front mounting 4-hole: | no |
| Version as maintenance/repair switch: | yes |
| Voltage release optional: | no |
| Suitable for front mounting central: | no |
| Version as main switch: | yes |
| Version as safety switch: | yes |
| Motor drive optional: | no |
| Lockable: | yes |
| Version as reversing switch: | no |
| Rated short-time withstand current Icw: | 13 kA |
| Switching capacity at 400 V: | 132 kW |
| Rated continuous current at AC-21, 400 V: | 250 A |
| Number of switches: | 1 |
| Rated continuous current at AC-23, 400 V: | 250 A |
| Protection class (NEMA): | other |
