Bourns CVQ Extended Medium Voltage Disc Varistors are the extended-range version of the CV Medium Voltage Disc Varistors. Bourns CVQ Varsitors consist of varistors in 7mm, 10mm, 14mm, 20mm, and 23mm sizes with high current and energy capabilities (1.75kA to 15kA peak single pulse current and 9J to 627J single pulse surge energy). This series features a 60VAC to 550VAC voltage range and provides an increased level of protection for the transients expected in telecommunication and AC power networks.