AutomationDirect GS33-4025

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.

Source checked11/11 values · 2026-10-26AutomationDirectVFD
Rated power
18.6425kW
Rated current
38A
IP rating
IP20

Specification

2 sources
Categoryvfd
Supply voltage460 VAC
Frame sizeF
Output typePWM output
Operating temp min-20 °C
Operating temp max50 °C

Quick answers

What is the IP rating of the AutomationDirect GS33-4025?
IP20, per DURApulse AC High-performance Drive: 460 VAC, 25hp with 3-phase input, (VFD) (PN# GS33-4025) | AutomationDirect (automationdirect.com).

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

  • Safe Torque Off (STO) is built-in.
  • UL Listed File # E198015.
  • CE marked; RoHS compliant; EU REACH document available.
  • User-supplied external fuse required.
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