{"id":"automationdirect-gs4-4075","model_id":"GS4-4075","name":"AutomationDirect GS4-4075","summary":"The GS4-4075 is a DURApulse GS4 series AC variable frequency drive in an open frame. It takes 460 VAC three-phase input and is rated 75 hp with three-phase input, driving three-phase induction motors in SVC or V/Hz control mode. It has an RS-485 port for Modbus RTU, Modbus ASCII and BACnet, and accepts optional EtherNet/IP and Modbus TCP cards.","study_notes":["GS4 series, frame size D, open frame, panel or wall mounting.","Three-phase 460 VAC input and three-phase output; 75 hp with 3-phase input.","Current ratings: 105 A amperage rating and 100 A variable torque rating.","Control modes: SVC or V/Hz.","RS-485 (RJ12) port supports Modbus RTU, Modbus ASCII and BACnet at up to 115.2k baud.","Optional EtherNet/IP and Modbus TCP cards are available; these are not built-in.","A keypad (GS4-KPD) is included and attached to the drive.","Discrete I/O: 8 inputs at 24 VDC and 4 outputs; outputs include Form C (SPDT) relays plus sinking/sourcing.","Analog I/O: 3 input channels and 2 output channels.","Programming language is ladder; GSLOGIC drive PLC software is listed.","No integrated EMI filter; reverse capability is built-in.","External dynamic braking unit is required."],"safety_notes":["Safe Torque Off (STO) is built-in.","An external dynamic braking unit is required.","A user-supplied external fuse is required.","Open frame enclosure; the document lists IP00 and IP20 ratings.","Operating temperature range is -10 to +50 °C.","Certifications stated: UL Listed File # E198015, CE declaration and RoHS compliant."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs4-4075","title":"DURApulse AC High-performance Drive: 460 VAC, 75hp with 3-phase input, (VFD) (PN# GS4-4075) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS4-4075_cutsheet.pdf","title":"GS4 4075 cutsheet","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":8,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"vfd","manufacturer":"automationdirect","controllers":[],"supply_voltage":"460 VAC","frame_size":"D","output_type":"PWM output","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-gs4-4075","license":"https://creativecommons.org/licenses/by/4.0/"}