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AutomationDirect DURApulse GS4-2050

The DURApulse GS4-2050 is an open-frame AC variable frequency drive in the GS4 series. It accepts 230 VAC input, either 3-phase or 1-phase, and produces 3-phase output, rated 50 hp on 3-phase input and 10 hp on 1-phase input. Control is sensorless vector (SVC) or V/Hz, and the drive communicates over an RS-485 (RJ12) port using Modbus RTU, Modbus ASCII or BACnet.

Source checked9/9 values · 2026-10-26AutomationDirectVFD
Weight
53.9775kg

Specification

2 sources
Categoryvfd
Supply voltage230 VAC
Frame sizeD
Output typePWM output
Operating temp min-10 °C
Operating temp max50 °C

Quick answers

How much does the AutomationDirect DURApulse GS4-2050 weigh?
53.9775 kg, per DURApulse AC High-performance Drive: 230 VAC, 50hp with 3-phase input, 10hp with 1-phase input, (VFD) (PN# GS4-2050) | AutomationDirect (automationdirect.com).

Study notes

  • Amperage rating 139 A with 3-phase input and 33 A with 1-phase input; variable torque amperage rating 9 A.
  • Control modes are SVC or V/Hz; output type is PWM.
  • Output frequency range 0.1-599 Hz; carrier frequency range 2-15 kHz.
  • Discrete I/O: 8 inputs at 24 VDC (sinking/sourcing), 4 outputs rated 240 VAC and 48 VDC (relay/sinking/sourcing) with two Form C (SPDT) relays, 3 A/point relay and 50 mA/point discrete.
  • Analog I/O: 3 input channels (0-20 mA and 4-20 mA, +/-10 VDC, 11-bit resolution) and 2 output channels (0-20 mA and 4-20 mA, 0-10 VDC, 10-bit resolution).
  • Input signal options are 4-20 mA, voltage or potentiometer input.
  • Single RS-485 (RJ12) communication port with speeds up to 115.2k baud; optional EtherNet/IP and Modbus TCP cards available.
  • Open frame construction, panel or wall mounting; enclosure is rated both IP00 and IP20.
  • No integrated EMI filter and not internally bypassed; an external dynamic braking unit is required.
  • Built-in reverse capability; programming language is ladder; screw terminal connectors.
  • A user-supplied external fuse is required.
  • Intended for use with 3-phase induction motors.

Safety

  • Safe Torque Off (STO) is built-in.
  • UL Listed, File # E198015; no UL Recognized file and no UL Hazardous file.
  • No CSA file number is listed.
  • CE declaration available and RoHS status compliant (see CE document); EU REACH document available.
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