Tronic Four Pole 125A Isolator
TSh 37,500
Our review
The Tronic Four Pole 125A Isolator is a compact circuit device made to protect a line against overloads and short circuits, and to handle occasional switching between supply arrangements. It also works as an on/off switch for a load circuit, which is why it turns up most often in lighting installations for homes and commercial buildings. Four poles means it can break several conductors together, so it suits three-phase boards or setups where you want the whole circuit isolated in one action rather than fumbling with separate switches.
It is aimed at electricians and anyone wiring or upgrading a distribution board who needs a main or sub-main isolation point rated at 125A. Before buying, confirm the current rating matches the load and cable size, check the number of poles you actually need, and make sure the mounting style and terminal layout suit your enclosure. Compare it with other isolators of the same rating on pole count, breaking capacity and enclosure compatibility, since those details decide whether it fits your board.
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