Logic Elements (Rexroth - BOSCH). - Directional Control Function , Control Cover. - Type : LFA. - Nominal Size NS 25. - EWA : With Electrical Monitoring Of The Closed Position For Mounting Directional

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Logic Elements (Rexroth - BOSCH). - Directional Control Function , Control Cover. - Type : LFA. - Nominal Size NS 25. - EWA : With Electrical Monitoring Of The Closed Position For Mounting Directional
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LFA_25_EWA-7X-CA20D
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Modified on: August 16,2026  
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Specifications
Supplier part number: LFA_25_EWA-7X-CA20D
Name:Logic Elements (Rexroth - BOSCH). - Directional Control Function , Control Cover. - Type : LFA. - Nominal Size NS 25. - EWA : With Electrical Monitoring Of The Closed Position For Mounting Directional
Description:The LFA..EWA control cover is designed for directional control functions, utilizing a standard pilot control valve (e.g., type 4WE 6) to create a high-flow, pilot-operated directional valve . The "E" designates electrical monitoring of the closed position, and the "WA" variant is specifically prepared for mounting a directional pilot valve . 🔧 Function and Design The LFA..EWA control cover is part of the LC/LFA cartridge valve system and serves as the "brain" that dictates the behavior of the logic element . Key aspects of its design and function include: Electrical Spool Position Monitoring: The E designation indicates that the cover is equipped with a contactless inductive position switch. This switch directly monitors the main spool's closed position and provides a short-circuit-proof binary signal for the machine control, confirming when the valve is safely in its closed state . Mounting for Directional Valve: The "WA" variant signifies it is prepared for the setup of a pilot control valve. A standard directional spool valve, such as a 4WE 6 or a directional seat valve like the M-3SEW 6, can be mounted directly onto the control cover . Pilot Control: The mounted pilot valve controls the flow of pilot oil to the main cartridge valve. By selecting different pilot valves, the logic element can be configured for various directional control functions . 📋 Key Technical Specifications (NS 25) The following specifications are relevant for the LFA25EWA variant. Specification Detail Type LFA..EWA (Control Cover) Function Directional Control, with electrical closed-position monitoring and mounting for a directional pilot valve Nominal Size (NS) 25 Component Series 7X Position Sensor Type Inductive position switch (type QM or Q6) Electrical Connection 4-pole M12 connector (separate order) Voltage 24 V DC Output PNP transistor output Pilot Valve Mounting Prepared for directional spool valve 4WE 6... or directional seat valve M-3SEW 6... Mounti
    
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