# AutomationDirect GS33-20P5

Hardware · `GS33-20P5` · verification: source checked

The GS33-20P5 is a DURApulse GS30 series enclosed AC variable frequency drive from AutomationDirect. It accepts 230 VAC three-phase input and is rated 1/2 hp with three-phase input, using SVC, V/Hz, FOC, encoder or torque control modes. It has integrated dynamic braking, RS-485 (RJ45) and USB B ports, and an A2 frame.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Weight | 1.184 kg |
| Supply voltage | 230 VAC |
| Frame size | A2 |
| 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.
- Enclosure type enclosed, IP rating IP20.
- User-supplied external fuse required.
- Temperature rating -20 to +50 deg C.
- Agency approvals: UL Listed File # E198015; CE declaration available; RoHS status Yes; no UL Recognized, UL Hazardous or CSA file listed.

## Study notes

- Control modes listed: SVC, V/Hz, FOC, encoder or torque.
- Carrier frequency range 2-15 kHz; output frequency range 0.1-599 Hz.
- Onboard I/O: 7 discrete inputs (24 VDC, sinking/sourcing), 3 discrete outputs (relay/sinking/sourcing, 240 VAC and 30 VDC), 2 analog inputs (12-bit, 0-20 mA / 4-20 mA, +/-10 VDC), 1 analog output (10-bit, 0-20 mA / 4-20 mA, 0-10 VDC).
- Relay output is one Form C (SPDT); load current 3 A/point relay, 50 mA/point discrete.
- Communications: one RS-485 (RJ45) port and one USB B port, up to 115.2k baud; port protocols Modbus RTU Slave and Modbus ASCII Slave.
- Integrated EMI filter: No. Internally bypassed: No. Reverse capability: built-in.
- Built-in ladder programming (GSLOGIC drive PLC software supplied for the embedded PLC).
- Mounting: 35 mm DIN rail, panel or wall; spring clamp terminals.
- Intended for 3-phase induction and permanent magnet AC motors.
- Optional communication, encoder and I/O modules are available.
- Shipping weight stated as 2.61 lb; country of origin India; HS code 8504.40.

## Sources

1. [DURApulse AC High-performance Drive: 230 VAC, 1/2hp with 3-phase input, (VFD) (PN# GS33-20P5) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-20p5) (accessed 2026-10-26)
2. [GS33 20P5 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS33-20P5_cutsheet.pdf) (accessed 2026-10-26)

---

Source page: https://machineschema.com/hardware/automationdirect-gs33-20p5  
JSON: https://machineschema.com/hardware/automationdirect-gs33-20p5.json  
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite Machine Schema and the original sources.