# AutomationDirect GS33-27P5

Hardware · `GS33-27P5` · verification: source checked

The AutomationDirect GS33-27P5 is an enclosed DURApulse GS30 series AC variable frequency drive with a 230 VAC three-phase input and a 7-1/2 hp rating. It controls three-phase induction and permanent magnet AC motors in SVC, V/Hz, FOC, encoder or torque mode, and provides RS-485 Modbus RTU/ASCII communication and integrated dynamic braking. Optional communication, encoder and I/O modules are available.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Supply voltage | 230 VAC |
| Rated power | 5.59274904 kW |
| Rated current | 25 A |
| Frame size | D |
| 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

- Built-in Safe Torque Off (STO).
- UL Listed File # E198015; CE declaration; RoHS compliant.
- Requires a user-supplied external fuse.

## Study notes

- GS30 series high-performance drive, D frame, enclosed, panel or wall mounting.
- Control modes: SVC, V/Hz, FOC, encoder or torque mode.
- Input: 230 VAC, 3-phase; output: 230 VAC, 3-phase.
- Amperage rating 25 A; variable torque amperage rating 27 A.
- Integrated dynamic braking and built-in reverse capability; not internally bypassed.
- Discrete I/O: 7 inputs (24 VDC, sinking/sourcing) and 3 outputs (relay/sinking/sourcing, 240 VAC/30 VDC).
- Analog I/O: 2 inputs (12-bit) and 1 output (10-bit); input signals 4–20 mA, voltage, potentiometer or pulse train.
- Carrier frequency range 2–15 kHz; output frequency range 0.1–599 Hz.
- Communication ports: RS-485 (RJ45) and USB B; Modbus RTU/ASCII slave up to 115.2k baud.
- Optional communication, encoder and I/O modules available.
- For use with 3-phase induction and permanent magnet AC motors.
- Item shipping weight 5.74 lb (2.60 kg).

## Sources

1. [DURApulse AC High-performance Drive: 230 VAC, 7-1/2hp with 3-phase input, (VFD) (PN# GS33-27P5) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-27p5) (accessed 2026-10-26)
2. [GS33 27P5 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS33-27P5_cutsheet.pdf) (accessed 2026-10-26)

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