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Water Tight Cathodic Protection Rectifier, Model ES-WT

   Farwest's Model ES-WT is a watertight rectifier for use in underground utility vaults that are subject to flooding. With a maximum output of 200 watts, Model ES-WT can be used where conventional rectifiers would fail in flooding conditions. All completed units are pressurize-tested under water for leaks.  Features 14 gauge, 316L stainless steel cabinet Dimensions 8” x 9” x16” Gasketed door is bolted on all four sides for positive sealing Unique lip-out case design eliminates sharp edges inside case All components mounted on easy access slide-out chassis Watertight gland fittings for all three openings 35 Amp encapsulated silicon diode bridge Heavy-duty design transformer w/ 800 cm/a min. wire size Silk-screened panel Fast Acting AC & DC lightning protection All-circuit breaker protection (no fuses) External 50 mV shunt Rugged moving magnet ammeter

Created by: Pipeline Corrosion Control

Last updated 11/2025

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Description

   Farwest's Model ES-WT is a watertight rectifier for use in underground utility vaults that are subject to flooding. With a maximum output of 200 watts, Model ES-WT can be used where conventional rectifiers would fail in flooding conditions. All completed units are pressurize-tested under water for leaks.  Features 14 gauge, 316L stainless steel cabinet Dimensions 8” x 9” x16” Gasketed door is bolted on all four sides for positive sealing Unique lip-out case design eliminates sharp edges inside case All components mounted on easy access slide-out chassis Watertight gland fittings for all three openings 35 Amp encapsulated silicon diode bridge Heavy-duty design transformer w/ 800 cm/a min. wire size Silk-screened panel Fast Acting AC & DC lightning protection All-circuit breaker protection (no fuses) External 50 mV shunt Rugged moving magnet ammeter Available Sizes     Model Number DC Output Voltage DC Output Current ES-WT 12-5 12V 5A ES-WT 12-10 12V 10A ES-WT 20-5 20V 5A ES-WT 20-10 20V 10A ES-WT 30-5 30V 5A ES-WT 40-5 40V 5A   ES Utility Line Rectifier Ordering Guide Configure an 8-position model number like ES-I-V 20-5 Positions from left to right are as follows: Position #1: Model ES-I = ES Utility Rectifier ES-II =ES Utility Rectifier Position #2: Output Control Type S = Standard Rectifier (Manual taps) V = Variac Control E = Constant Voltage Control (ES-II only) D = Constant Current Control (ES-II only) P = Constant Potential Control (ES-II only) M = Multiple Modes (ES-II only) Position #3: DC Output Voltage* List DC Voltage Desired (6V, 12V, 20V, 30V or 40V) Position #4: DC Current Output* List DC Current Desired (5A or 10A)) Position #5: Special or Optional Features H = Hour Meter (ES-II only) K = Red or Green Status Lights ((ES-II only)   * Combinations are 6V-5A, 6V-10A, 12V-5A, 12V-10A, 20V-5A, 20V-10A, 30V-5A,  40V-5A  
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