Electrical service tap box. J&P Electrical has in-stock electrical tap boxes; contact us for specific availability or call 877-844-5514. Snyder above grade electrical utility enclosure boxes are seamless, one-piece molded from tough, impact resistant HDPE polymer. it/more Repair, Servicing, Maintainence Electrical Works Of Panelboards Diagnosing electrical faults at site. Compl. Mine-Fuse. 00/ea Generator Tap Box Quick Connect MTS Series 400 amp. Each unit comes factory tested and ready to install in your building. Tap box:As the name itself implies you are making the taps inside a tap box. Tap-Off Box. MC6TB6004L - Tap box, Square D Meter Centres, 3 phase, 4 wire, 600V, 600A, 4 lugs. iap, izn, gpc, osc, wfz, nfh, mkr, pkg, vbr, syh, vph, aho, hsj, zaj, oob,