# AutomationDirect GS33-25P0

Hardware · `GS33-25P0` · verification: source checked

The GS33-25P0 is an enclosed DURApulse GS30 series AC variable frequency drive from AutomationDirect. It accepts 230 VAC three-phase input and drives three-phase induction or permanent magnet AC motors up to 5 hp using SVC, V/Hz, FOC, encoder, or torque control modes. It includes RS-485 Modbus communication, integrated dynamic braking, and built-in Safe Torque Off.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Weight | 1.7281869297 kg |
| Supply voltage | 230 VAC |
| Rated power | 3.7284993579 kW |
| Rated current | 17 A |
| Frame size | C1 |
| 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.
- Operating temperature range is -20 to +50 °C.
- UL Listed File # E198015; CE; RoHS compliant.
- Requires a user-supplied external fuse.

## Study notes

- Variable torque current rating is 19.5 A.
- Control modes are SVC, V/Hz, FOC, encoder, or torque.
- Carrier frequency range is 2–15 kHz; output frequency range is 0.1–599 Hz.
- Analog I/O: 2 inputs (12-bit; 0–20 mA, 4–20 mA, ±10 VDC) and 1 output (10-bit; 0–20 mA, 4–20 mA, 0–10 VDC).
- Discrete I/O: 7 inputs at 24 VDC sinking/sourcing and 3 outputs rated 240 VAC and 30 VDC, relay/sinking/sourcing.
- Communication ports are one RS-485 (RJ45) and one USB B; port speeds up to 115.2k baud.
- Mounting is 35 mm DIN rail, panel, or wall.
- Programming language is ladder.
- Optional communication, encoder, and I/O modules are available.
- Integrated dynamic braking and reverse capability are built in; an EMI filter is not integrated and the drive is not internally bypassed.
- For use with 3-phase induction and permanent magnet AC motors.

## Sources

1. [DURApulse AC High-performance Drive: 230 VAC, 5hp with 3-phase input, (VFD) (PN# GS33-25P0) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-25p0) (accessed 2026-10-26)
2. [GS33 25P0 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS33-25P0_cutsheet.pdf) (accessed 2026-10-26)

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