Premium Automatic Type VAP This is the rectifier to choose when you have an installation where the groundbed or electrolyte resistance changes frequently, in areas of interference from other power supplies, where structure potentials are critical, where the area of the structure under protection changes frequently, or where special materials are being used. The PREMIUM AUTOMATIC Line of Cathodic Protection Rectifier features voltage, current, and/or potential control. Constant current units have the added feature of voltage control and limit. Constant voltage units have the added feature of current control and limit. Auto potential units provide voltage, current and potential control and limit.

VAP FEATURES:

• Auto/manual control switch
• +/- two volt set potential range
• 800 volt thyristors with complete surge protection.
• Single phase and three phase input options.
• Available in air or oil immersed enclosures.
• Standard ambient temperature rating of 50C (122F).
• Accessibility provided by lockable, hinged doors. Nema 3R type enclosures. 16-gauge steel standard, 11 gauge optional. White polyester powder coat standard.
  Unit shown without doors
• Fully magnetic AC circuit breakers are standard.
• Filtering on the output is standard.
• Input and output lightning arrestors are standard.
• 500 CMA copper wiring is used with double nutted connections through the instrument panel.
• Function labels are engraved into the instrument panel.

TYPICAL CODE FOR THE PREMIUM AUTOMATIC RECTIFIERS:

W A P C C 30 - 30 N