# AutomationDirect GS33-2025

Hardware · `GS33-2025` · verification: source checked

The GS33-2025 is an enclosed DURApulse GS30 series AC variable frequency drive rated 25 hp with a 230 VAC three-phase input. It controls three-phase induction and permanent magnet AC motors using SVC, V/Hz, FOC, encoder or torque control modes. It has an RS-485 (RJ45) port and a USB B port, integrated dynamic braking, built-in Safe Torque Off, and accepts optional communication, encoder and I/O modules.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Weight | 12.98 kg |
| Supply voltage | 230 VAC |
| Rated power | 18.6 kW |
| Rated current | 75 A |
| Frame size | G |
| 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 IP rating IP20.
- User-supplied external fuse required.
- Operating temperature rating -20 to +50 deg C.
- UL Listed File # E198015; CE declaration available; RoHS status Yes.

## Study notes

- Series GS30, controller type high-performance, G frame size.
- Input signal options: 4-20 mA, voltage, potentiometer or pulse train; output is PWM.
- Carrier frequency range 2-15 kHz; output frequency range 0.1-599 Hz.
- Amperage rating 75 A; variable torque amperage rating 81 A.
- Analog inputs: 2 channels, current/voltage, 12-bit, 0-20 mA and 4-20 mA or +/-10 VDC, 1 non-isolated common.
- Analog output: 1 channel, 10-bit, 0-20 mA / 4-20 mA or 0-10 VDC.
- Discrete I/O: 7 inputs (24 VDC, sinking/sourcing, 2 commons) and 3 outputs (relay/sinking/sourcing, 240 VAC and 30 VDC, one Form C SPDT relay), 3 A/point relay and 50 mA/point discrete.
- Port speed up to 115.2k baud; connector type spring clamp terminals.
- Programming language ladder; GSLOGIC drive PLC software and GSOFT2 configuration software are listed.
- Reverse capability built-in; unit is not internally bypassed and has no integrated EMI filter.
- Item shipping weight 28.62 lb; country of origin India.

## Sources

1. [DURApulse AC High-performance Drive: 230 VAC, 25hp with 3-phase input, (VFD) (PN# GS33-2025) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-2025) (accessed 2026-10-26)
2. [GS33 2025 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS33-2025_cutsheet.pdf) (accessed 2026-10-26)

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