{"id":"automationdirect-gs4-25p0","model_id":"GS4-25P0","name":"AutomationDirect DURApulse GS4-25P0","summary":"The GS4-25P0 is a DURApulse GS4 series AC variable-frequency drive from AutomationDirect. It operates from 230 VAC and is rated for 5 hp with three-phase input or 2 hp with single-phase input, using SVC or V/Hz control. It has an IP20 NEMA 1 enclosure, built-in Safe Torque Off, RS-485 communication, and integrated dynamic braking.","study_notes":["Brand: DURApulse; series: GS4; controller type listed as high-performance.","Input phases: 3 and 1; output phases: 3.","Horsepower by input phase: 5 hp with 3-phase input, 2 hp with 1-phase input.","Amperage rating: 16 A with 3-phase input and 8 A with 1-phase input; variable-torque rating 17 A.","Control mode: SVC or V/Hz.","Communication port: one RS-485 (RJ12); port protocols include Modbus RTU, Modbus ASCII and BACnet, at up to 115.2k baud.","Input signal: 4–20 mA, voltage or potentiometer input; output type: PWM output; reverse capability built-in.","Analog I/O: 3 input channels (11-bit, 0–20/4–20 mA, ±10 VDC) and 2 output channels (10-bit, 0–20/4–20 mA, 0–10 VDC).","Discrete I/O: 8 sinking/sourcing inputs at 24 VDC and 4 relay/sinking/sourcing outputs at 240 VAC/48 VDC; two Form C (SPDT) relays.","Carrier frequency range: 2–15 kHz; output frequency range: 0.1–599 Hz.","Programming language: ladder; connector type: screw terminals; intended for 3-phase induction motors.","Optional EtherNet/IP and Modbus TCP cards are available; integrated EMI filter and internal bypass are not provided."],"safety_notes":["Built-in Safe Torque Off (STO).","User-supplied external fuse required.","UL Listed File # E198015.","CE marked; 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/gs4-25p0","title":"DURApulse AC High-performance Drive: 230 VAC, 5hp with 3-phase input, 2hp with 1-phase input, (VFD) (PN# GS4-25P0) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS4-25P0_cutsheet.pdf","title":"GS4 25P0 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":[],"supply_voltage":"230 VAC","frame_size":"A","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-gs4-25p0","license":"https://creativecommons.org/licenses/by/4.0/"}