AutomationDirect GS4-4300

The GS4-4300 is a DURApulse GS4 series AC variable frequency drive in an open-frame, G-frame package. It accepts a 460 VAC three-phase input and is rated at 300 hp, using SVC or V/Hz control. It provides an RS-485 port for Modbus RTU, Modbus ASCII, and BACnet communication and drives three-phase induction motors.

Source checked9/9 values · 2026-10-26

AutomationDirect VFD

Rated current

437A

Specification

2 sources

Category	vfd
Supply voltage	460 VAC
Frame size	G
Output type	PWM output
Operating temp min	-10 °C
Operating temp max	50 °C

Study notes

Control modes: SVC or V/Hz.
Rated input current: 437 A; variable torque rating: 460 A.
Output frequency range: 0.1–599 Hz; carrier frequency range: 2–15 kHz.
RS-485 port uses an RJ12 connection and supports up to 115.2k baud.
Port protocols: Modbus RTU, Modbus ASCII, and BACnet.
Optional EtherNet/IP and Modbus TCP cards are available; these are not listed as built-in.
Integrated EMI filter: No.
External dynamic braking unit is required.
I/O: 3 analog inputs, 2 analog outputs, 8 discrete inputs, 4 discrete outputs; 2 Form C (SPDT) relays.
Programming language: ladder.
For use with 3-phase induction motors.
IP rating is stated as IP00 and IP20; enclosure is open frame and wall mounted.

Safety

Built-in Safe Torque Off (STO).
UL Listed File # E198015; CE declarations available; RoHS status: Yes.
Operating temperature range: -10 to +50 °C.