{"id":"automationdirect-gs21-23p0","model_id":"GS21-23P0","name":"AutomationDirect DURApulse GS21-23P0","summary":"The GS21-23P0 is an enclosed DURApulse GS20 series general-purpose AC variable frequency drive. It runs from a single-phase 230 VAC supply and produces a three-phase output for induction or permanent magnet AC motors, rated 3 hp. Control modes are SVC, V/Hz, FOC and torque, and the drive includes an RS-485 port, a USB B port and integrated dynamic braking.","study_notes":["Supply is 1-phase 230 VAC; output is 3-phase 230 VAC.","Amperage rating 11 A; variable torque amperage rating 12.5 A.","Output frequency range 0.1-599 Hz; carrier frequency range 2-15 kHz.","Control modes: SVC, V/Hz, FOC or torque. Built-in reverse capability.","Communication: (1) RS-485 (RJ45) and (1) USB B, up to 115.2k baud; port protocols Modbus RTU Slave and Modbus ASCII Slave.","EtherNet/IP and Modbus TCP are available only through an optional card, not built in.","I/O: 7 discrete inputs at 24 VDC (sinking/sourcing), 3 discrete outputs (one Form C SPDT relay) rated 3 A/point relay and 50 mA/point discrete.","Analog: 2 input channels (0-20 mA and 4-20 mA, +/-10 VDC, 10-bit and 12-bit resolution) and 1 output channel (0-20 mA and 4-20 mA, 0-10 VDC, 10-bit).","Programming language is ladder; configuration via GSOFT2 software.","Connector type is spring clamp terminals; mounting is panel or wall.","Integrated EMI filter: No. Internally bypassed: No."],"safety_notes":["Safe Torque Off (STO) is built in.","Enclosure is IP20, so it must be installed in a suitable enclosure for most environments.","A user-supplied external fuse is required.","Agency approvals: UL Listed file E198015, CE, RoHS. No UL Recognized, UL Hazardous or CSA file is listed.","Operating temperature rating -20 to +50 deg C."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/general_purpose_vfds/gs21-23p0","title":"DURApulse AC General Purpose Drive: 230 VAC, 3hp with 1-phase input, (VFD) (PN# GS21-23P0) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS21-23P0_cutsheet.pdf","title":"GS21 23P0 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":[],"weight_kg":1.5875733,"supply_voltage":"230 VAC","rated_current_a":11,"frame_size":"C","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-gs21-23p0","license":"https://creativecommons.org/licenses/by/4.0/"}