{"id":"automationdirect-gs23-4020","model_id":"GS23-4020","name":"AutomationDirect DURApulse GS23-4020","summary":"The DURApulse GS23-4020 is an enclosed AC general purpose variable frequency drive for 3-phase 460 VAC input, rated 20 hp. It supports SVC, V/Hz, FOC and torque control modes, includes RS-485 Modbus RTU/ASCII communication, integrated dynamic braking and built-in Safe Torque Off (STO). An optional card adds EtherNet/IP and Modbus TCP.","study_notes":["Control modes: SVC, V/Hz, FOC or torque.","Input: 3-phase 460 VAC, 32 A rated; 36 A variable torque.","Output frequency range 0.1–599 Hz; carrier frequency 2–15 kHz.","Communication: RS-485 (RJ45) and USB B; Modbus RTU/ASCII slave up to 115.2k baud.","Optional EtherNet/IP and Modbus TCP card available.","Discrete I/O: 7 inputs (24 VDC sinking/sourcing), 3 outputs (relay/sinking/sourcing).","Analog I/O: 2 inputs (current/voltage), 1 output (current/voltage).","Integrated dynamic braking; built-in reverse capability.","Programming language: Ladder.","For use with 3-phase induction and permanent magnet AC motors.","Frame size E; panel or wall mounting."],"safety_notes":["Safe Torque Off (STO) built-in.","UL Listed File # E198015; CE; RoHS compliant.","Operating temperature range -20 to +50 °C.","User-supplied external fuse required."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/general_purpose_vfds/gs23-4020","title":"DURApulse AC General Purpose Drive: 460 VAC, 20hp with 3-phase input, (VFD) (PN# GS23-4020) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS23-4020_cutsheet.pdf","title":"GS23 4020 cutsheet","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":11,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"vfd","manufacturer":"automationdirect","controllers":[],"weight_kg":5.0349,"supply_voltage":"460 VAC","rated_power_kw":14.914,"frame_size":"E","output_type":"PWM output","ip_rating":"IP20","operating_temp_min_c":-20,"operating_temp_max_c":50,"joints":[],"protocols":["modbus-rtu","modbus-ascii"],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/automationdirect-gs23-4020","license":"https://creativecommons.org/licenses/by/4.0/"}