NFPA/T2.30.6-2002 (R2009).

Title:
Hydraulic fluid power – Electrical connectors for use with industrial hydraulic integrated proportional valves – Dimensions and requirements

Scope:
This standard defines: the overall structure of the connector system
the physical dimensions of the connector receptacle
the insert configuration specifying contact assignment and resulting flow direction
the performance requirements of the connector system. This design standard encourages end users of integrated electronic hydraulic proportional directional valves to use a connector that will safely enable interfacing and interchangeability. This standard does not influence the hydromechanical design of the valve other than the implied relationship of the command input, sense and magnitude to the direction of resultant flow. Two classes of performance requirements are provided (see clause 5): a) compatibility in environments that encounter the commonly used industrial hydraulic fluids
compatibility in environments that encounter more aggressive hydraulic fluids.