I'm repairing a 3hp single-phase compressor which has the start and run capacitors roughly cable-tied to the bracket above the motor, and the side-mounted terminal box is missing its cover. I haven't been able to find any generic spares, except for one website where a little plastic square terminal box is 180 quid. Does anyone know a source for the sealed boxes that come with new motors, or do I just need to ring round the industrial suppliers on the off-chance, or make something up from Hammond enclosures?