AVR WT-3 Generator Automatic Voltage Regulator PCB Module

Overview: The AVR WT-3 is an automatic voltage regulator designed for generator alternator excitation control in diesel gensets, standby power systems, industrial power equipment, and aftermarket service applications. As a generator spare part, it supports stable voltage regulation by controlling the excitation output according to sensing input from the alternator, helping maintain dependable output performance during normal operation and load changes. The module is suitable for maintenance teams, repair workshops, generator distributors, rental fleet service providers, and B2B buyers who need a compatible replacement solution for WT-3 series AVR applications. Function: The regulator provides selectable 120V or 240V sensing, jumper selectable 50/60 Hz frequency setting, soft start voltage ramping, sensing voltage loss protection, and under frequency roll off protection with LED indication. Replacement Value: Its potted board housing, heat sink structure, terminal blocks, jumper interface, and compact mounting form make it practical for generator panel installation, alternator service replacement, and control cabinet inventory planning. Procurement Support: This product is intended for spare parts sourcing, genset overhaul, alternator voltage fault repair, inventory replenishment, and OEM/ODM cooperation where buyers require quality-focused generator control components without unsupported brand authorization claims.