Load-break switch with fuse 250A, size 3, 3-pole for NH fuse size 0 and 1, front drive left, complete device with direct drive, gray, flat connection. Load-break switch with fuses 3KF as main, EMERGENCY STOP or repair switch. Load-break switches with fuses 3KF enable a rated current of between 32 and 800 A to be switched on and off, depending on the size. In addition, they provide a safety disconnection function in all low-voltage circuits. Load-break switches with fuses 3KF are optimized for demanding applications in which NH fuses are used. 1. Variable load-break switches with door coupling or direct drive in five sizes. 2. Easy retrofitting of functions thanks to extensive accessories. 3. Reliable protection against electrical accidents thanks to locking functionality, contact protection and automatically locked fuse cover when switched on. 4. Robust technology with high short-circuit strength for high system availability. 5. Fast installation on the top hat rail for sizes up to 80 A. 6. Efficient engineering with extensive CAx data. 7. Safe protection also for wind turbines up to 690 V + 10%. 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 |
| Rated continuous current Iu: | 250 A |
| Degree of protection (IP), front: | IP00 |
| Number of poles: | 3 |
| Design as main switch: | yes |
| Suitable for front mounting: | no |
| Suitable for floor mounting: | yes |
| With fuse monitoring: | no |
| Version as an EMERGENCY STOP device: | no |
| Conditional rated short-circuit current Iq: | 100 kA |
| Version as a safety switch: | yes |
| Max. Rated operating voltage Ue at AC: | 690 V |
| Motor drive integrated: | no |
| Rated short-time withstand current Icw: | 8 kA |
| Motor drive optional: | no |
| Rated operating power at AC-23, 400 V: | 132 kW |
| Equipped with connectors: | no |
