{"id":"automationdirect-gs33-4050","model_id":"GS33-4050","name":"AutomationDirect GS33-4050","summary":"The AutomationDirect GS33-4050 is a DURApulse GS30 series enclosed AC variable frequency drive. It accepts 460 VAC three-phase input and drives three-phase induction or permanent magnet AC motors at up to 50 hp, using SVC, V/Hz, FOC, encoder or torque control modes. It provides RS-485 and USB B ports and supports Modbus RTU and Modbus ASCII slave communication.","study_notes":["Input and output are both 3-phase.","Amperage rating is 75 A; variable torque amperage rating is 85 A.","Control modes are SVC, V/Hz, FOC, encoder or torque.","Communication ports are one RS-485 (RJ45) and one USB B; port speed is up to 115.2k baud.","Output frequency range is 0.1–599 Hz; carrier frequency range is 2–15 kHz.","Discrete I/O includes 7 inputs and 3 outputs; analog I/O includes 2 inputs and 1 output.","Programming language is ladder; connector type is spring clamp terminals.","For use with 3-phase induction and permanent magnet AC motors.","Optional communication, encoder and I/O modules are available.","No integrated EMI filter; mounting is panel or wall."],"safety_notes":["Built-in Safe Torque Off (STO).","IP20 enclosure; operating temperature range is -20 to +50 °C.","External dynamic braking unit required.","User-supplied external fuse required.","UL Listed File # E198015; RoHS compliant; CE declarations available."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-4050","title":"DURApulse AC High-performance Drive: 460 VAC, 50hp with 3-phase input, (VFD) (PN# GS33-4050) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS33-4050_cutsheet.pdf","title":"GS33 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":37.2849936,"rated_current_a":75,"frame_size":"H","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-gs33-4050","license":"https://creativecommons.org/licenses/by/4.0/"}