# AutomationDirect GS4-41P0

Hardware · `GS4-41P0` · verification: source checked

The GS4-41P0 is a DURApulse GS4 series AC high-performance variable frequency drive. It accepts 460 VAC three-phase input and is rated 1 hp with 2.9 A output, driving three-phase induction motors in either sensorless vector (SVC) or V/Hz control mode. It is a wall-mount, NEMA 1 / IP20 unit in frame size A with an RS-485 (RJ12) port for Modbus RTU, Modbus ASCII or BACnet communication and integrated dynamic braking.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Weight | 3.49 kg |
| Supply voltage | 460 VAC |
| Rated power | 0.746 kW |
| Rated current | 2.9 A |
| Frame size | A |
| Output type | PWM output |
| IP rating | IP20 |
| Operating temp min | -10 °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) function.
- Operating temperature rating -10 to +50 deg C.
- UL Listed, file # E198015; CE declaration and RoHS status yes; EU REACH document available.
- No UL Recognized file, no UL Hazardous location file and no CSA file are listed for this item.
- Requires a user-supplied external fuse.

## Study notes

- Control mode is selectable between SVC (sensorless vector) and V/Hz.
- Carrier frequency range 2-15 kHz; output frequency range 0.1-599 Hz.
- RS-485 (RJ12) port supports Modbus RTU, Modbus ASCII and BACnet at up to 115.2k baud.
- Discrete I/O: 8 inputs (24 VDC, sinking/sourcing) and 4 outputs (relay/sinking/sourcing) including 2 Form C (SPDT) relays; relay load 3 A/point, discrete 50 mA/point.
- Analog I/O: 3 input channels (11-bit, 0-20 mA / 4-20 mA or +/-10 VDC) and 2 output channels (10-bit, 0-20 mA / 4-20 mA or 0-10 VDC).
- Accepts 4-20 mA, voltage or potentiometer input signal; output type is PWM.
- Built-in reverse capability and integrated dynamic braking; no integrated EMI filter; not internally bypassed.
- Embedded PLC programmable in ladder logic (GSLOGIC software).
- Optional EtherNet/IP and Modbus TCP communication cards are available; EtherNet/IP EDS file and Rockwell AOI are provided.
- Motion/drive weight is 7.7 lb (approximately 3.5 kg); item is supplied with a keypad (GS4-KPD) and quick start insert.

## Sources

1. [DURApulse AC High-performance Drive: 460 VAC, 1hp with 3-phase input, (VFD) (PN# GS4-41P0) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs4-41p0) (accessed 2026-10-26)
2. [GS4 41P0 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS4-41P0_cutsheet.pdf) (accessed 2026-10-26)

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