AEMC AC Current Probe Model JM830A The JM830A is a high performance AC Current Probe with excellent transformation and low phase shift. The high quality magnetic core and uniform windings provide for accurate measurements up to 3600AAC. The squared jaw permits multiple conductor or bus bar positionings. Provide excellent TRMS capabilities and reliable signal reproduction. Maximum Conductor Size Cable: 2.52" (64mm)Bus bar: 1.97 x 5.31 (50 x 135mm), 2.52 x 3.94 (64 x 100mm) Current Range 2400AAC (3000AAC if ambient temperature