AutomationDirect GS33-4050

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.

Source checked11/11 values · 2026-10-26AutomationDirectVFD
Rated power
37.285kW
Rated current
75A
IP rating
IP20

Specification

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

Quick answers

What is the IP rating of the AutomationDirect GS33-4050?
IP20, per DURApulse AC High-performance Drive: 460 VAC, 50hp with 3-phase input, (VFD) (PN# GS33-4050) | AutomationDirect (automationdirect.com).

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

  • 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.
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