The DURApulse GS4 series of AC sensorless vector drives includes many of the same standard features as our other GS drives including dynamic braking, PID, and adds much more. GS4 drives are available up to 300hp in the 460V models, up to 100hp in the 230V models. All of the 230V models can run on 3-phase or single phase. Starting at $422.00, GS4 drives have a 100kA Short Circuit Current Rating (SCCR), a 50°C operating temperature rating, and STO (Safe Torque Off) is built in. Modbus RTU/ASCII and BACnet protocols are built in and can be upgraded with optional Modbus TCP or EtherNet/IP communication cards. The smart keypad with QuickStart menu can be remotely mounted for easy configuration / control. Every drive has a built-in PLC (up to 10k steps) and software for both the drive and the PLC are available on CD or as a free download.