{"id":"automationdirect-gs4-2040","model_id":"GS4-2040","name":"AutomationDirect GS4-2040","summary":"The AutomationDirect GS4-2040 is a 230 VAC AC variable frequency drive in the DURApulse GS4 series. It provides 40 hp with three-phase input or 10 hp with single-phase input and operates in SVC or V/Hz control mode. The unit has a NEMA 1/IP20 enclosure, an RS-485 port, built-in Safe Torque Off, and requires an external dynamic braking unit.","study_notes":["Input phases: 3 and 1; output phases: 3.","Current rating: 114 A with 3-phase input and 33 A with 1-phase input; variable torque rating 115 A.","Control mode: SVC or V/Hz.","NEMA 1 enclosure, frame size D, panel or wall mounting.","RS-485 (RJ12) port supports Modbus RTU, Modbus ASCII, and BACnet up to 115.2k baud.","Optional EtherNet/IP and Modbus TCP cards available.","Carrier frequency range 2–15 kHz; output frequency range 0.1–599 Hz.","Discrete I/O: 8 sinking/sourcing inputs at 24 VDC and 4 relay/sinking/sourcing outputs.","Analog I/O: 3 current/voltage inputs and 2 current/voltage outputs.","Programming language: ladder; built-in reverse capability.","For use with 3-phase induction motors; external dynamic braking unit required.","Input signal: 4–20 mA, voltage, or potentiometer."],"safety_notes":["Built-in Safe Torque Off (STO).","UL Listed File # E198015; CE; RoHS compliant; EU REACH document available."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs4-2040","title":"DURApulse AC High-performance Drive: 230 VAC, 40hp with 3-phase input, 10hp with 1-phase input, (VFD) (PN# GS4-2040) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS4-2040_cutsheet.pdf","title":"GS4 2040 cutsheet","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":10,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"vfd","manufacturer":"automationdirect","controllers":[],"weight_kg":53.52389966,"supply_voltage":"230 VAC","frame_size":"D","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-gs4-2040","license":"https://creativecommons.org/licenses/by/4.0/"}