# AutomationDirect GS33-45P0

Hardware · `GS33-45P0` · verification: source checked

The GS33-45P0 is a DURApulse GS30 series enclosed AC variable frequency drive from AutomationDirect. It takes 460 VAC three-phase input and drives three-phase induction or permanent magnet AC motors at up to 5 hp, using SVC, V/Hz, FOC, encoder or torque control modes. It includes an RS-485 (RJ45) port and a USB B port, integrated dynamic braking, and a built-in keypad.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Weight | 1.7055 kg |
| Supply voltage | 460 VAC |
| Rated power | 3.7285 kW |
| Rated current | 9 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.
- Enclosure rating IP20.
- Operating temperature rating -20 to +50 deg C.
- A user-supplied external fuse is required.
- UL Listed File # E198015; RoHS status Yes; CE declarations available.

## Study notes

- Control modes: SVC, V/Hz, FOC, encoder or torque.
- Carrier frequency range 2-15 kHz; output frequency range 0.1-599 Hz.
- RS-485 (RJ45) and USB B ports; port speed up to 115.2k baud; Modbus RTU Slave and Modbus ASCII Slave.
- Analog I/O: 2 input channels (12-bit, 0-20 mA / 4-20 mA, +/-10 VDC) and 1 output channel (10-bit, 0-20 mA / 4-20 mA, 0-10 VDC).
- Discrete I/O: 7 inputs (24 VDC, sinking/sourcing) and 3 outputs (relay/sinking/sourcing, 240 VAC and 30 VDC); one Form C (SPDT) relay.
- Load current 3 A/point relay, 50 mA/point discrete.
- Programming language: ladder.
- Mounting: 35 mm DIN rail, panel or wall; spring clamp terminals.
- Input signal options: 4-20 mA, voltage, potentiometer or pulse train; output is PWM.
- Reverse capability built in; internal bypass not provided.
- Optional communication, encoder and I/O modules are available.
- Weight 3.76 lb.

## Sources

1. [DURApulse AC High-performance Drive: 460 VAC, 5hp with 3-phase input, (VFD) (PN# GS33-45P0) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-45p0) (accessed 2026-10-26)
2. [GS33 45P0 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS33-45P0_cutsheet.pdf) (accessed 2026-10-26)

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