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Maysteel’s UltraVac™ Capacitor Switch Combines Flexibility with Reliability

Trinetics® UltraVac™ Solid Dielectric Oil-less

The durable and reliable UltraVac™ solid dielectric vacuum switch from Maysteel is now available with a choice of either a lowcurrent motor operator or a new positive-latching dual solenoid operator – adding to the switch’s already impressive array of features.

Known industry-wide for its ease of installation, maintenance-free design and operational integrity, the UltraVac™ single phase capacitor switch excels as a high-performance, drop-in replacement for oil switches.

Key features of the UltraVac™ switch include:

• Best-in-class C2 rated interrupter, with no re-strikes in 1,200 sequential test operations
• Solenoid operator rated at 50,000 full OPEN/CLOSE cycles; motor operator rated at 30,000 full OPEN/CLOSE cycles
• Manual OPEN/CLOSE with high-visibility indication
• Large 0.40 in. vacuum gap and 16 cu. in. bottle volume
• 33 in. terminal-to-ground creep distance, 30 in. terminal-to-terminal
• Weather and impact resistant cycloaliphatic epoxy V-bushings; can be rotated 360 degrees for easy connections
• Corrosion resistant tank coating exceeds ANSI C57.12.31 requirements
• Standard 5-pin or factory configurable receptacle
• Accommodates pole, wall, lug, capacitor frame, substation or cross-arm mounting; vertical or horizontal mounting in pad bank applications

UltraVac™ switches are suitable for 15kV, 25kV and 35kV systems at 200A continuous. Maysteel, LLC, based in Menomonee Falls, WI, specializes in the manufacture of enclosures, assemblies and components – including power capacitor banks, harmonic filter banks, vacuum and oil switches, switchgear, and multipurpose electrical gear.

The company was founded in 1936 and today has three manufacturing plants comprising more than 500,000 square feet of production space. Since 1965, Maysteel has been privately owned by the U.S.-based Everett Smith Group, Ltd., which has operations in the United States, United Kingdom, Mexico, South Africa, Argentina and Hungary.