Pipeline Corrosion Control

Cathodic Protection Rectifiers, Specialty Series, Air Cooled

Created by: Pipeline Corrosion Control

Last updated 11/2025

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Description

Type "UT" Series Type "SW" Series The UT & SW Series air cooled cathodic protection rectifiers, are an alternative to Standard Line series air cooled cathodic protection rectifiers. The UT is the smallest model of the two series with a maximum of 400 watts, with all the same features as the larger SW series. Both Series rectifier features swing out and removable design case, which permits superior accessibility for routine maintenance and inspection. Limited to 1,600 watts of DC output, the simplified rectifier design reduces manufacturing costs and provides an economical rectifier suited for most cathodic protection applications. Standard Features Weatherproof to NEMA 3R Heavy duty 11-gauge hot dip galvanized cabinet with Stainless Steel Hardware Stainless Steel, perforated screens Components mounted on galvanized plate for easy removal Heavy duty, draw-pull, stainless steel cabinet latch Heavy duty transformer with 15% over-design for reserve capacity Minimum 18-step voltage control taps 3/16” Grade XX, Phenolic front panel Accessible front panel Total precision shunt Magnetic AC Input circuit breaker Magnetic AC Secondary Breakers (instead of fuses) Hoyt, separate analog, 2-1/2” round, volt and amp meters Silicon diodes protected by surge suppressors and current limiting breakers All electrical connection hardware is Nickel Plated and double-nutted or soldered Multi-strand, high temperature, insulated flexible wiring Terminal block for AC input wires Safety shield panel supplied on all units over 65 Volts DC Optional Features A variety of AC voltage inputs single phase only AC and/or DC High Energy lightning protection Efficiency filter chokes Communication filters Meter switches Power-on indicator light DC circuit breakers 115 VAC convenience outlet Powder coated cabinet finishes (White or Gray Standard) Additional voltage control adjustments Other options per request of customer Dimensions Dimensions (Inches) Case Size A B C D E F G UT 8.75 12 19 17 11 16 20 SW1 12 15 22 18.5 12 20 25 SW2 14 17 25 22 14.5 22 28 SW3 14 20 28 25.5 14.5 25 31 Cabinet Wattage & Weight Case Size Maximum Watts Maximum Weight UT 400 80 lbs SW1 800 110 lbs SW2 1200 150 lbs SW3 1600 200 lbs