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AutomationDirect GS4-4075

The GS4-4075 is a DURApulse GS4 series AC variable frequency drive in an open frame. It takes 460 VAC three-phase input and is rated 75 hp with three-phase input, driving three-phase induction motors in SVC or V/Hz control mode. It has an RS-485 port for Modbus RTU, Modbus ASCII and BACnet, and accepts optional EtherNet/IP and Modbus TCP cards.

Source checked8/8 values · 2026-10-26AutomationDirectVFD

Specification

2 sources
Categoryvfd
Supply voltage460 VAC
Frame sizeD
Output typePWM output
Operating temp min-10 °C
Operating temp max50 °C

Study notes

  • GS4 series, frame size D, open frame, panel or wall mounting.
  • Three-phase 460 VAC input and three-phase output; 75 hp with 3-phase input.
  • Current ratings: 105 A amperage rating and 100 A variable torque rating.
  • Control modes: SVC or V/Hz.
  • RS-485 (RJ12) port supports Modbus RTU, Modbus ASCII and BACnet at up to 115.2k baud.
  • Optional EtherNet/IP and Modbus TCP cards are available; these are not built-in.
  • A keypad (GS4-KPD) is included and attached to the drive.
  • Discrete I/O: 8 inputs at 24 VDC and 4 outputs; outputs include Form C (SPDT) relays plus sinking/sourcing.
  • Analog I/O: 3 input channels and 2 output channels.
  • Programming language is ladder; GSLOGIC drive PLC software is listed.
  • No integrated EMI filter; reverse capability is built-in.
  • External dynamic braking unit is required.

Safety

  • Safe Torque Off (STO) is built-in.
  • An external dynamic braking unit is required.
  • A user-supplied external fuse is required.
  • Open frame enclosure; the document lists IP00 and IP20 ratings.
  • Operating temperature range is -10 to +50 °C.
  • Certifications stated: UL Listed File # E198015, CE declaration and RoHS compliant.
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