{"id":"automationdirect-gs4-2100","model_id":"GS4-2100","name":"AutomationDirect GS4-2100","summary":"The GS4-2100 is a DURApulse GS4 series open-frame AC variable frequency drive rated for 230 VAC input. It delivers 100 hp with a 3-phase input or 25 hp with a 1-phase input, and runs 3-phase induction motors in either sensorless vector control (SVC) or V/Hz mode. Setup and monitoring are done from an attached keypad, and the drive provides an RS-485 port plus discrete and analog I/O for control signals.","study_notes":["Control modes are SVC or V/Hz; carrier frequency range is 2–15 kHz and output frequency range is 0.1–599 Hz.","Amperage rating is 242 A with 3-phase input and 75 A with 1-phase input; variable torque amperage rating is 255 A.","Communication is one RS-485 port on an RJ12 connector running Modbus RTU, Modbus ASCII or BACnet at up to 115.2k baud.","EtherNet/IP and Modbus TCP are only available through optional cards, not built in.","I/O: 8 discrete inputs at 24 VDC (sinking/sourcing), 4 discrete outputs including 2 Form C (SPDT) relays, 3 analog inputs (11-bit resolution, 0–20 mA / 4–20 mA or +/-10 VDC) and 2 analog outputs (10-bit, 0–20 mA / 4–20 mA or 0–10 VDC).","An embedded PLC is programmable in ladder (GSLogic software); connector type is screw terminals.","Horsepower rating depends on input phases: 100 hp with 3-phase input, 25 hp with 1-phase input.","Enclosure is open frame for wall mounting, frame size E; the stated IP rating covers both IP00 and IP20.","Item shipping weight is 156 lb.","Intended for use with 3-phase induction motors; input signal can be 4–20 mA, voltage or potentiometer."],"safety_notes":["Safe Torque Off (STO) is built in.","An external dynamic braking unit is required.","A user-supplied external fuse is required.","Operating temperature range is -10 to +50 deg C.","Agency approvals: UL Listed file # E198015, CE, and RoHS compliant; no UL Recognized, UL Hazardous or CSA file listed."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs4-2100","title":"DURApulse AC High-performance Drive: 230 VAC, 100hp with 3-phase input, 25hp with 1-phase input, (VFD) (PN# GS4-2100) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS4-2100_cutsheet.pdf","title":"GS4 2100 cutsheet","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":9,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"vfd","manufacturer":"automationdirect","controllers":[],"weight_kg":70.76,"supply_voltage":"230 VAC","frame_size":"E","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-gs4-2100","license":"https://creativecommons.org/licenses/by/4.0/"}