VT-VSPA1K-1-10 by Rexroth, Indramat, Bosch in the VT-VSPA1 Series. The VT-VSPA1 Proportional Valve Amplifier controls solenoid current to Rexroth proportional valves without LVDT position feedback. This VT-VSPA1K-1-10 offers a Component Series of 10, Additional Functions of Factory Assigned, and a Operating Voltage of +24 VDC + 40 % - 5 %. Other features include a 16-pole terminal strip; out front plate of Connection Type and a Operation Control For pressure valves.