Tronic 250A 12-Way Three Phase TPN Distribution Board

Our review

This Tronic board is a three phase TPN distribution unit built around a 250A TP MCCB incomer, with provision for up to twelve 1A-63A TP MCBs on the outgoing side. It is rated 400V and 250A, and uses Form 2b Type 1 separation, with three phase pilot lamp indications including voltage. It suits anyone arranging three phase distribution where a single 250A main device and a dozen outgoing ways are enough, such as a workshop, commercial premises or a small plant room. Before buying, confirm your supply is three phase and that 250A matches your main cable and upstream protection, then count your outgoing circuits: twelve ways fills quickly once lighting, sockets and equipment are separated. Check the MCB rating range against your final circuits, and whether you want a board with more ways or a higher-rated incomer. Compare the enclosure type, separation form and whether pilot lamps are included, since these vary between boards of this size.