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Joslyn Hi-Voltage Capacitor Switches & Fisher Pierce Controllers

Joslyn Hi-Voltage Capacitor Switches & Fisher Pierce Controllers

Joslyn Hi-Voltage® capacitor switches are designed to switch capacitor banks for improved system efficiency, voltage profile and capacity.
Fisher Pierce® controllers help to optimize the grid power performance and power factor correction. They can be used in conjunction with Joslyn Hi-Voltage VerSaVac® and Varmaster VBM capacitor switches.


Joslyn Hi-Voltage Capacitor Switches


  • Reliable - Using vacuum interruption, solid dielectric insulation and solenoid operators, these switches offer long, reliable service life of up to 100,000 expected operations with no required maintenance.

  • Environmentally friendly - contains no oil or gas, virtually eliminating the associated environmental concerns and regulatory requirements for monitoring usage and leakage.

  • VerSaVac® (VSV) distribution capacitor switches - single- and three-phase, 15 to 38 kV, 200 amps.

  • Varmaster (VBM) substation capacitor and reactor switches - one-pole and three-phase, 15 to 46 kV, 300 to 600 amps.

  • Zero voltage closing (ZVC) control - provides transient mitigation of system over-voltages and inrush current.


Fisher Pierce Controllers


  • Compatibility - Fisher Pierce controllers can be used with our VSV, VBM capacitor switches.
  • Durability - Coated stainless steel or plastic cabinets.
  • Flexibility - Different mounting options, including pole mount socket jaw and configurable base plates.
  • Remote control communication capabilities.
  • User friendly - Programmable via front panel or PC based software.
  • Data Integrity - Data logging captures 10,000 events.



Joslyn Hi-Voltage


  • VerSaVac® 15-38 kV capacitor switches
  • Varmaster VBM 15-72.5 kV capacitor switches
  • Zero voltage closing control


Fisher Pierce


  • 5400 Series


Catalogs & Brochures


Additional Links & Downloads


Application of Products in the Environment

Application: Joslyn Hi-Voltage Capacitor Switches

JHV 46 kV Installation

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