{"id":"automationdirect-gs33-4025","model_id":"GS33-4025","name":"AutomationDirect GS33-4025","summary":"The GS33-4025 is a DURApulse GS30 series enclosed AC variable frequency drive for 460 VAC three-phase input and 25 hp motors. It supports SVC, V/Hz, FOC, encoder and torque control modes, includes integrated dynamic braking, and communicates over RS-485 using Modbus RTU or Modbus ASCII. Optional communication, encoder and I/O modules expand its interfaces.","study_notes":["Control modes: SVC, V/Hz, FOC, encoder or torque.","Integrated dynamic braking and built-in reverse capability.","Communication ports: one RS-485 (RJ45) and one USB B; baud rate up to 115.2k.","Carrier frequency range 2–15 kHz; output frequency range 0.1–599 Hz.","Two analog inputs: 12-bit, 0–20 mA and 4–20 mA, or ±10 VDC.","One analog output: 10-bit, 0–20 mA and 4–20 mA, or 0–10 VDC.","Seven discrete inputs: 24 VDC, sinking/sourcing, two non-isolated commons.","Three discrete outputs: relay/sinking/sourcing, 240 VAC and 30 VDC; one Form C (SPDT) relay.","Programming language: ladder.","For use with 3-phase induction and permanent magnet AC motors.","Optional communication, encoder and I/O modules available.","Variable torque amperage rating: 41.5 A."],"safety_notes":["Safe Torque Off (STO) is built-in.","UL Listed File # E198015.","CE marked; RoHS compliant; EU REACH document available.","User-supplied external fuse required."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-4025","title":"DURApulse AC High-performance Drive: 460 VAC, 25hp with 3-phase input, (VFD) (PN# GS33-4025) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS33-4025_cutsheet.pdf","title":"GS33 4025 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":18.6424968,"rated_current_a":38,"frame_size":"F","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-gs33-4025","license":"https://creativecommons.org/licenses/by/4.0/"}