Polyphaser offers a variety of surge protector types including AC surge protectors, DC surge protectors, Coaxial cable surge protectors, Data surge protectors and also Single Point Grounding.

MCG Surge Protection offers units for service entrances, mid-building entry protection, panelmount, OEM protection, data lines, DC protection (up to 15A of continuous DC load current), and rackmount surge protectors. The new LVC Crowbar is now available for voltage transients on a power supply bus. Any potentially destructive energy from resultant transients is now provided with a very low resistance path around sensitive components.

Meter Treater is a manufacture of surge protector products for point-of-use outlet, coaxial cable, data, DIN rail, hard wired, service branch and meter protection. They also manufacture 3 phase industrial protection, and specialized units such as the SLT/HEB Series which is available as either a 4 Wire or an 8 Wire unit that will interface directly, in series, with 4 pin Euro-Connectors or DC Micro Connectors. Alarm system surge protectors are also available.