Polymeric distribution-class arresters with UltraSIL polymer housed. Available in Normal Duty, Heavy-Duty and Riser Pole classifications,

• Arrester Selection Program

Externally operated one-, two- and three-phase under-oil tap changer switch family eliminates many of the hazards associated with manual internal tap changing of distribution transformers.

Maximum flexibility, available in two types: Integral Header (IHR) (9, 12, and 15 inches wide) and Welded Header (12 and 15 inches and 520mm wide). The 520mm provides a DIN Standard radiator configured to meet North American requirements. Standard center line mounting lengths range from 21 to 180 inches.

The Evolution surge arrester uses specially formulated and highly durable Metal Oxide Varistors (MOVs) in combination with a proprietary insulating ceramic ring assembly.

• Arrester Selection Program

Polymeric IEC distribution arrester class 1, Use Metal Oxide Varistors (MOVs) having excellent electrical properties, these arresters provide superior overvoltage protection for MV distribution systems.

• Arrester Selection Program

The Heartland pressure relief valve relieves excessive pressure in transformers, regulators and other electrical equipment.

The IFDTM is a sensor that detects internal arcing faults in distribution transformers. The sensor releases a highly visible orange signal that shows the line worker the transformer status before re-energizing.