# AutomationDirect GS4-4015

Hardware · `GS4-4015` · verification: source checked

The GS4-4015 is a DURApulse GS4 series AC variable frequency drive for 3-phase induction motors. It accepts 460 VAC three-phase input and is rated 15 hp, with SVC or V/Hz control, an RS-485 port for Modbus RTU/ASCII, and integrated dynamic braking. It has a NEMA 1 enclosure rated IP20 and built-in Safe Torque Off.

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Supply voltage | 460 VAC |
| Rated power | 11.185498073734 kW |
| Rated current | 23 A |
| Frame size | B |
| 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).
- UL Listed File # E198015; CE declarations available; RoHS status Yes. No UL Recognized, UL Hazardous, or CSA file is listed.
- User-supplied external fuse required.

## Study notes

- GS4 series drive.
- Control mode: SVC or V/Hz.
- Nominal input and output voltage: 460 VAC; 3 input phases and 3 output phases.
- Amperage rating 23 A; variable torque amperage rating 24 A.
- RS-485 (RJ12) communication port; port speed up to 115.2k baud.
- Port protocols include BACnet in addition to Modbus RTU and Modbus ASCII.
- Optional EtherNet/IP and Modbus TCP cards are available.
- Integrated dynamic braking; no integrated EMI filter.
- Carrier frequency range 2–15 kHz; output frequency range 0.1–599 Hz.
- 3 analog inputs (11-bit; 0–20 mA, 4–20 mA, ±10 VDC) and 2 analog outputs (10-bit; 0–20 mA, 4–20 mA, 0–10 VDC).
- 8 discrete inputs (24 VDC, sinking/sourcing) and 4 discrete outputs (240 VAC/48 VDC, relay/sinking/sourcing, 2 Form C SPDT relays).
- Programming language: ladder; screw terminals; for use with 3-phase induction motors.

## Sources

1. [DURApulse AC High-performance Drive: 460 VAC, 15hp with 3-phase input, (VFD) (PN# GS4-4015) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs4-4015) (accessed 2026-10-26)
2. [GS4 4015 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS4-4015_cutsheet.pdf) (accessed 2026-10-26)

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