High-energy varistor ZOV Series

The ZOV series is a series of high-energy varistors. There are two groups of varistors. The first group consists of standard sized surge shaped varistors while the second group consists of full custom parameter designed varistors. With the second ZOV series group, the customer is offered the opportunity to design their own optimum varistor to suit their specific application, within the dimensions that are possible. Parameters free to be chosen are: non-standard DC/AC operating voltage, leakage current, clamping voltage, maximum surge current, energy absorption level, maximum dissipation power as well as shape, the dimensions being the function of required electrical parameters and vice-versa. Both of these groups are offered in two versions: epoxy coated with rigid terminals and metalized varistor blocks. The first are designed to provide secondary surge protection in an outdoor and service entrance environment (distribution panels), in computers and also in industrial applications for motor controls and power supplies in oil-drilling, mining and transportation fields. The second are intended for applications with special contact or installation requirements. The electrode finish of devices is solderable and can also be used with pressure contacts for stacking applications.