AutomationDirect GS4-2075

The GS4-2075 is a DURApulse GS4 series AC variable frequency drive in an open-frame E frame. It accepts 230 VAC input, with ratings of 75 hp for 3-phase input and 20 hp for 1-phase input, and uses SVC or V/Hz control. It provides an RS-485 port for Modbus RTU, Modbus ASCII and BACnet communication, and optional EtherNet/IP and Modbus TCP cards are available.

Source checked8/8 values · 2026-10-26

AutomationDirect VFD

Specification

2 sources

Category	vfd
Supply voltage	230 VAC
Frame size	E
Output type	PWM output
Operating temp min	-10 °C
Operating temp max	50 °C

Study notes

Input and output voltage are 230 VAC; input accepts 3-phase or 1-phase, output is 3-phase.
Power rating is 75 hp with 3-phase input and 20 hp with 1-phase input.
Current rating is 204 A with 3-phase input and 65 A with 1-phase input; variable torque rating is 215 A.
Control mode is SVC or V/Hz.
Integrated EMI filter: no.
RS-485 (RJ12) port supports Modbus RTU, Modbus ASCII and BACnet at up to 115.2k baud.
Optional EtherNet/IP and Modbus TCP cards are available.
External dynamic braking unit required.
Carrier frequency range is 2–15 kHz; output frequency range is 0.1–599 Hz.
I/O includes 3 analog inputs, 2 analog outputs, 8 discrete inputs and 4 discrete outputs.
Discrete outputs include two Form C (SPDT) relays; load current is 3 A/point relay and 50 mA/point discrete.
Programming language is ladder; the unit is open-frame and wall-mounted.

Safety

Built-in Safe Torque Off (STO).
UL Listed File # E198015; CE declaration; RoHS compliant.
No UL Recognized, UL Hazardous or CSA file number is stated.
IP rating is stated as IP00 and IP20.
User-supplied external fuse required.