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AutomationDirect GS21-10P5

The GS21-10P5 is a DURApulse GS20 series general-purpose AC variable frequency drive. It accepts 120 VAC single-phase input and provides 230 VAC three-phase output for 3-phase induction and permanent magnet AC motors, rated 1/2 hp with a 2.5 A rating. It supports SVC, V/Hz, FOC and torque control modes and includes RS-485 Modbus RTU/ASCII communication, integrated dynamic braking and an optional EtherNet/IP and Modbus TCP card.

Source checked10/10 values · 2026-10-26AutomationDirectVFD
Rated current
2.5A
IP rating
IP20

Specification

2 sources
Categoryvfd
Supply voltage120 VAC
Frame sizeA3
Output typePWM output
Operating temp min-20 °C
Operating temp max50 °C

Quick answers

What is the IP rating of the AutomationDirect GS21-10P5?
IP20, per DURApulse AC General Purpose Drive: 120 VAC, 1/2hp with 1-phase input, (VFD) (PN# GS21-10P5) | AutomationDirect (automationdirect.com).

Study notes

  • Single-phase 120 VAC input; three-phase 230 VAC output.
  • Variable torque rating is 2.7 A.
  • Control modes: SVC, V/Hz, FOC and torque.
  • Output frequency range 0.1–599 Hz; carrier frequency 2–15 kHz.
  • Integrated dynamic braking and built-in reverse capability.
  • RS-485 (RJ45) and USB B ports; Modbus RTU/ASCII slave up to 115.2 kbaud.
  • Two analog inputs, one analog output, seven discrete inputs and three discrete outputs.
  • Discrete output type is relay/sinking/sourcing with one Form C (SPDT) relay.
  • Programming language is ladder; spring clamp terminals.
  • Optional EtherNet/IP and Modbus TCP card available.
  • For use with 3-phase induction and permanent magnet AC motors.
  • Integrated EMI filter: No.

Safety

  • Built-in Safe Torque Off (STO).
  • User-supplied external fuse required.
  • UL Listed file E198015; CE; RoHS compliant.
  • No UL Recognized, UL Hazardous or CSA file listed.
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