{"id":"automationdirect-gs4-4050","model_id":"GS4-4050","name":"AutomationDirect GS4-4050","summary":"The GS4-4050 is a DURApulse GS4 series AC variable frequency drive for 3-phase induction motors. It operates at 460 VAC nominal with 3-phase input, a 50 hp rating, and SVC or V/Hz control. It has a NEMA 1 enclosure, RS-485 communications, and built-in Safe Torque Off (STO).","study_notes":["Controller type is high-performance; series GS4; control mode is SVC or V/Hz.","Nominal input and output voltage is 460 VAC; input and output phases are 3.","Amperage rating is 69 A, with a 73 A variable torque rating; horsepower is 50 hp with 3-phase input.","RS-485 (RJ12) port supports Modbus RTU, Modbus ASCII and BACnet at up to 115.2 kbaud.","Optional EtherNet/IP and Modbus TCP cards are available.","Eight discrete inputs are 24 VDC sinking/sourcing; four discrete outputs are relay/sinking/sourcing.","Analog input resolution is 11-bit and analog output resolution is 10-bit; input signal ranges include 0–20 mA, 4–20 mA and ±10 VDC.","Output frequency range is 0.1–599 Hz; carrier frequency range is 2–15 kHz.","Programming language is ladder; connectors are screw terminals; reverse capability is built-in.","External dynamic braking unit required; integrated EMI filter is not included; internally bypassed is no.","For use with 3-phase induction motors."],"safety_notes":["Built-in Safe Torque Off (STO).","A user-supplied external fuse is required.","UL Listed File # E198015.","CE marked; RoHS compliant."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs4-4050","title":"DURApulse AC High-performance Drive: 460 VAC, 50hp with 3-phase input, (VFD) (PN# GS4-4050) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS4-4050_cutsheet.pdf","title":"GS4 4050 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":[],"supply_voltage":"460 VAC","rated_power_kw":37.28499357911351,"rated_current_a":69,"frame_size":"D0","output_type":"PWM output","ip_rating":"IP20","operating_temp_min_c":-10,"operating_temp_max_c":50,"joints":[],"protocols":["modbus-rtu","modbus-ascii"],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/automationdirect-gs4-4050","license":"https://creativecommons.org/licenses/by/4.0/"}