|   Cathodic Rectifiers: Full Open Series The full open series is a versatile alternative to our standard air-cooled line, featuring full access to all components or easy removal of the entire chassis.                                           | Standard Features:                    Pole mountGalvanized enclosureConvection air-cooledRemovable chassisDual A.C. input voltage (120/240 or 240/480)20 step voltage adjustmentHeavy duty transformer (15% over design)Magnetic breakerAC and DC lightning protectionSeparate D.C. volt and amp meters (2% accuracy)External panel shunt, plainly markedPermanently engraved panelSilicon diode stack with surge protection | Optional Features:                    Aluminum casePainted caseHigh density selenium stackSilicon modular stackEfficiency filter choke120 VAC convenience outletMeter switches Multiple D.C. output circuits Others to customer specifications |  |