# AutomationDirect GS33-4030

Hardware · `GS33-4030` · verification: source checked

The GS33-4030 is an enclosed DURApulse GS30 series AC variable frequency drive rated for 460 VAC three-phase input and 30 hp. It controls three-phase induction and permanent magnet AC motors using SVC, V/Hz, FOC, encoder or torque control modes, with a 45 A rating. It provides RS-485 and USB B communication ports, built-in Safe Torque Off and integrated dynamic braking, and accepts optional communication, encoder and I/O modules.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Weight | 7.6385 kg |
| Supply voltage | 460 VAC |
| Rated power | 22.371 kW |
| Rated current | 45 A |
| Frame size | F |
| 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 IP rating is IP20.
- Operating temperature range is -20 to +50 °C.
- A user-supplied external fuse is required.
- UL Listed, file # E198015; CSA file #: None; RoHS status: Yes (see CE doc).

## Study notes

- Control modes: SVC, V/Hz, FOC, encoder or torque mode.
- Carrier frequency range 2-15 kHz; output frequency range 0.1-599 Hz.
- Variable torque amperage rating 49 A in addition to the 45 A standard rating.
- Analog I/O: 2 analog inputs (12-bit, 0-20 mA / 4-20 mA, +/-10 VDC) and 1 analog output (10-bit, 0-20 mA / 4-20 mA, 0-10 VDC).
- Discrete I/O: 7 sinking/sourcing inputs at 24 VDC and 3 relay/sinking/sourcing outputs at 240 VAC and 30 VDC; one Form C (SPDT) relay.
- Load current 3 A/point for relay outputs and 50 mA/point for discrete outputs.
- Communication: (1) RS-485 (RJ45) and (1) USB B, port speed up to 115.2k baud.
- Integrated EMI filter: No. Integrated dynamic braking: yes. Internally bypassed: No.
- Programming language: ladder; drive has an embedded PLC (GSLOGIC software).
- Mounting: panel or wall. Frame size F. Spring clamp terminals.
- Optional communication, encoder and I/O modules are available but not included.
- Reverse capability is built-in.

## Sources

1. [DURApulse AC High-performance Drive: 460 VAC, 30hp with 3-phase input, (VFD) (PN# GS33-4030) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-4030) (accessed 2026-10-26)
2. [GS33 4030 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS33-4030_cutsheet.pdf) (accessed 2026-10-26)

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