The Parker Hannifin P21-3C2-A5-1D3 CTC Operator Interface Panel is a 24VDC-powered control panel serving as the operator interface for Parker’s P21 control systems. Identified by part number P21-3C2-A5-1D3, this unit provides a dedicated human-machine interface within compatible Parker automation setups. This 24VDC Parker panel is intended for installations requiring a dedicated operator interface in the P21 platform.
