Available accessories (A).The EC75PSB4G-4 and the EC75PSB4G-17 both offer 75kW of power and require 125hp to drive the generator. The EC75PSB4G-4 is a three phase unit (120/208V) and offers 208 continuous amps of power. The EC75PSB4G-17 is also a three phase unit (120/240V) and offers 180 continuous amps of power.