The GE SR-3 series control was designed to provide a series transistorized hydraulic control alternative for industrial, commercial and utility applications, from 24 to 72 volts. Use of discrete components provides design flexibility and results in a more cost effective motor control. These controls can be supplied with GE series motors to provide hydraulic systems optimized for a specific OEM vehicle platform. Package dimensions : 9.13'' L x 8.66'' W x 5.92'' H Available armature current : 450 amps at 72V (50% on-time) 500 - 600 amps at 24 to 48V (50% on-time) Operating frequency : 15 kHz