Chauvin Arnoux P01120425B Power Quality Analyser Clamp, Accessory Type MN93 Clamp, For Use With CA8332B, CA8334B, CA8335. Compatible with all PEL and Qualistar Power Quality Analysers, including the CA8331, CA8333 & CA8336, the Chauvin Arnoux MN93A offers measurement range of 0.005A to 100A AC and a clamping diameter of 20mm. With an IEC 61010 rating of 600V CAT III / 300V CAT IV, the MN93A is an ideal accessory for use with any Chauvin Arnoux Power Quality Analyser.