The GuardDog® WRG-Series is the premier line of Maxivolt products. Primary and secondary protection circuits give clients a redundant layer of protection in the event the first level of protection is expended. SenseTech® form C dry contacts are provided standard on both layers of protection. An optional audible alarm can be added to either the primary or secondary protection circuit. Every device is hand made in the USA and goes through a rigorous and demanding testing process. GuardDog® WRG-Series products feature hybrid circuits consisting of only the highest quality components engineered to provide a clamping threshold for the specific voltage application they are designed for. Safety fusing and the non-ground dependent design eliminate safety risks associated with competitive devices. The various benefits of WRG-Series products provide clients with a quantifiable payback.​

Features and characteristics


Voltage Application

120/240 VAC | Split Phase 3 Wire


Voltage Application

120/240 VAC | Split Phase 4 Wire


Voltage Application

120/240 VAC | 3 Phase 4 Wire


Voltage Application

230/415 VAC | 3 Phase 4 Wire


Voltage Application

277/480 VAC | 3 Phase 4 Wire


Voltage Application

480 VAC | 3 Phase 3 Wire


Voltage Application

347/600 VAC | 3 Phase 4 Wire


Voltage Application

690 VAC | 3 Phase 3 Wire

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A team of power quality specialist to help you find a solution for your power quality issues. With vast experience and knowledge protecting industries from transient voltage, our team will help you with product selection, placement, and installation are critical to the performance of a surge protection system.

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Amarillo, US
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