A 4 Piece set comprising of 3 x Black VTBB15x4FPT and 1 x Blue VTBB15x4NTU These insulated busbar terminals let you connect your instruments to live busbars. A fuse holder is an integral part of the phase terminals, providing you with protection at the source. The terminals can be installed directly onto the busbar using an insulated Allen key driver. This makes the installation of this unique product a one handed exercise. The fuse holder is mounted directly on the metal that makes contact with the busbar, thereby providing a secure connection with a high short circuit rating. These terminals are KEMA certified. Suitable for busbars from 4mm to 15mm thick.