Eaton / Cutler Hammer Conduit/Plate hub has 1-1/4-Inch diameter. It is used with current rating of 70/100/125 Amps MLO and MCB, BR and CH loadcenters as well as CB enclosures. It is ideally used for general duty, heavy-duty applications and double throws safety switches through current rating of 100 Amps. It has rainproof construction to protect against corrosion. Conduit hub meets NEMA standards.