# AutomationDirect DURApulse GS33-41P0

Hardware · `GS33-41P0` · verification: source checked

The GS33-41P0 is a DURApulse GS30 series AC variable frequency drive in an enclosed A3 frame. It takes 460 VAC three-phase input and drives three-phase induction or permanent-magnet AC motors at 1 hp, using SVC, V/Hz, FOC, encoder or torque control modes. It has an RS-485 (RJ45) and USB B port speaking Modbus RTU or Modbus ASCII slave, plus onboard analog and discrete I/O and integrated dynamic braking.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Supply voltage | 460 VAC |
| Frame size | A3 |
| 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.
- User-supplied external fuse required.
- Enclosure rating IP20.
- Temperature rating -20 to +50 deg C.
- Agency approvals: UL Listed File # E198015, CE, RoHS status yes (see CE Doc); no UL Recognized, UL Hazardous or CSA file.

## Study notes

- Series GS30; controller type listed as high-performance, A3 frame size.
- Nominal input and output voltage 460 VAC, three input phases and three output phases.
- Horsepower rating is 1 hp with 3-phase input; amperage rating 3 A, variable torque amperage rating 3.3 A.
- Control modes: SVC, V/Hz, FOC, encoder or torque.
- Output type PWM; carrier frequency range 2-15 kHz; output frequency range 0.1-599 Hz.
- I/O: 7 discrete inputs (24 VDC, sinking/sourcing), 3 discrete outputs (240 VAC and 30 VDC, relay/sinking/sourcing) including one Form C (SPDT) relay; load current 3 A/point relay, 50 mA/point discrete.
- Analog I/O: 2 input channels (0-20 mA and 4-20 mA, +/-10 VDC, 12-bit) and 1 output channel (0-20 mA and 4-20 mA, 0-10 VDC, 10-bit).
- Communications: (1) RS-485 (RJ45) and (1) USB B; Modbus RTU Slave and Modbus ASCII Slave at up to 115.2k baud.
- Programming language ladder; connector type spring clamp terminals; reverse capability built-in; integrated EMI filter: no; internally bypassed: no.
- Mounting: 35mm DIN rail, panel or wall.
- Shipping weight stated as 2.64 lb.
- Optional communication, encoder and I/O modules are available.

## Sources

1. [DURApulse AC High-performance Drive: 460 VAC, 1hp with 3-phase input, (VFD) (PN# GS33-41P0) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs33-41p0) (accessed 2026-10-26)
2. [GS33 41P0 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS33-41P0_cutsheet.pdf) (accessed 2026-10-26)

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