Masking frame support for system masking frame, for size NH1, NH2, NH3, accessory for fuse switch disconnector 3NP1 Contains 2 supports Fuse switch disconnector 3NP up to 630 A with enhanced protection for personnel and plants and user-friendly connection system. The fuse switch disconnectors provide reliable overload and short-circuit protection for industrial plants or infrastructure and are suitable for use in various industries. The reach-round and touch protection incorporated as standard in the new SENTRON 3NP series prevents users from touching current conducting parts when mounting in a busbar system, even if they need to be accessed on the rear. The large inspection window also enables the user to recognize the fuses installed instantly. The Siemens 3NP fuse switch disconnectors are characterized primarily by: 1. Maximum flexibility due to modular design and universal accessories. 2. Suitable for floor mounting, standard mounting rail, and Siemens busbar system 8US. 3. Electronic fuse monitoring function including line monitoring. 4. Five sizes from 100 A to 630 A up to degree of protection IP40. 5. Fast and safe conversion of cablefeeder top / bottom. 6. Flexible switching instants of auxiliary switch (simultaneous or leading). 7. Possibility of locking and sealing.