# AutomationDirect GS4-4150

Hardware · `GS4-4150` · verification: source checked

The GS4-4150 is a DURApulse GS4 series AC variable frequency drive in an open-frame E frame. It accepts 460 VAC three-phase input and controls three-phase induction motors at up to 150 hp using SVC or V/Hz control. It includes RS-485 communications, analog and discrete I/O, and built-in Safe Torque Off (STO).

## Specification

| Property | Value |
|---|---|
| Category | vfd |
| Weight | 76.20351816 kg |
| Supply voltage | 460 VAC |
| Rated power | 111.8549808 kW |
| Rated current | 209 A |
| Frame size | E |
| Output type | PWM output |
| 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

- Safe Torque Off (STO) is built in.
- An external dynamic braking unit is required.
- A user-supplied external fuse is required.
- The drive is UL Listed under file E198015; RoHS status is Yes and CE declarations are available.
- The drive has an open-frame enclosure with stated IP00 and IP20 ratings.

## Study notes

- Control mode is SVC or V/Hz.
- Variable-torque current rating is 220 A.
- Carrier frequency range is 2–15 kHz; output frequency range is 0.1–599 Hz.
- The RS-485 port uses an RJ12 connection and supports up to 115.2k baud.
- The RS-485 port also lists BACnet support.
- Optional EtherNet/IP and Modbus TCP cards are available.
- Analog I/O includes 3 input channels with 11-bit resolution and 2 output channels with 10-bit resolution.
- Discrete I/O includes 8 sinking/sourcing inputs at 24 VDC and 4 relay/sinking/sourcing outputs.
- Input signals include 4–20 mA, voltage, or potentiometer input.
- Programming language is ladder; connector type is screw terminals.
- The drive is intended for 3-phase induction motors.
- Enclosure is open frame; IP ratings are stated as IP00 and IP20.

## Sources

1. [DURApulse AC High-performance Drive: 460 VAC, 150hp with 3-phase input, (VFD) (PN# GS4-4150) | AutomationDirect](https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs4-4150) (accessed 2026-10-26)
2. [GS4 4150 cutsheet](https://cdn.automationdirect.com/static/specs/cutsheet/GS4-4150_cutsheet.pdf) (accessed 2026-10-26)

---

Source page: https://machineschema.com/hardware/automationdirect-gs4-4150  
JSON: https://machineschema.com/hardware/automationdirect-gs4-4150.json  
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite Machine Schema and the original sources.