This low-voltage solid core current transformer is part of PowerLogic HDPM6000 (High Density Power Meter). It is prefered for new installation were cables aren't fixed on both end yet. The transformer is rated for a 125A circuit and a nominal voltage output of 0.25VAC at rated current. The solid core opening is a diameter of 14mm for cable. The lead consist of black and white twisted pair, 18AWG, length of 12ft. The transformer dimensions are 39.7mm in width, 40.2mm in height, diameter of 36.7mm, 12.5mm in depth for a net weight of 0.159kg. This element is UL Recognized and compliant to CE. Please refer to label for correct current flow orientation.