# AutomationDirect GS23-2020

Hardware · `GS23-2020` · verification: source checked

The GS23-2020 is a DURApulse GS20 series general-purpose AC variable frequency drive in an enclosed F frame. It operates from 230 VAC and provides 20 hp with three-phase input or 10 hp with single-phase input. It supports SVC, V/Hz, FOC, and torque control modes, with RS-485 communication, integrated dynamic braking, and built-in Safe Torque Off.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Supply voltage | 230 VAC |
| Frame size | F |
| Output type | PWM output |
| IP rating | IP20 |
| Operating temp min | -20 °C |
| Operating temp max | 50 °C |

## Connected

- Manufacturer: [AutomationDirect](https://machineschema.com/manufacturer/automationdirect.md)
- Protocols: [MODBUS ASCII](https://machineschema.com/protocol/modbus-ascii.md), [MODBUS RTU](https://machineschema.com/protocol/modbus-rtu.md)

## Safety

- Safe Torque Off (STO) is built-in.
- Requires a user-supplied external fuse.
- Operating temperature rating: -20 to +50 °C.
- IP20 enclosure rating.
- Certifications: UL Listed File # E198015; CE; RoHS compliant. No UL Recognized, UL Hazardous, or CSA file is stated.

## Study notes

- Series GS20; frame size F; enclosed, panel or wall mounting.
- Horsepower: 20 hp with 3-phase input; 10 hp with 1-phase input.
- Amperage rating: 65 A with 3-phase input; 32.5 A with 1-phase input; variable torque rating 69 A.
- Control modes: SVC, V/Hz, FOC, or torque.
- Output frequency range: 0.1–599 Hz; carrier frequency range: 2–15 kHz.
- Communication: one RS-485 (RJ45) port and one USB B port; Modbus RTU Slave and Modbus ASCII Slave up to 115.2k baud.
- Optional EtherNet/IP and Modbus TCP card available.
- I/O: 2 analog inputs, 1 analog output, 7 discrete inputs, 3 discrete outputs; 10-bit and 12-bit analog input resolution, 10-bit analog output resolution.
- Integrated dynamic braking; reverse capability built in; no integrated EMI filter; not internally bypassed.
- Programming language: Ladder; connector type: spring clamp terminals.
- For use with 3-phase induction and permanent magnet AC motors.
- Input signal: 4–20 mA, voltage, potentiometer, or pulse train input.

## Sources

1. [DURApulse AC General Purpose Drive: 230 VAC, 20hp with 3-phase input, 10hp with 1-phase input, (VFD) (PN# GS23-2020) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/general_purpose_vfds/gs23-2020) (accessed 2026-10-26)
2. [GS23 2020 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS23-2020_cutsheet.pdf) (accessed 2026-10-26)

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