Overview
The Turck FK 4.4 U9509 is a rugged, front-mount receptacle bulkhead connector designed for industrial automation, sensor, and actuator integration. This four-pin M12 Eurofast female receptacle offers sealed, IP68-rated construction with nickel-plated brass housing and PVC jacket, ensuring long service life in challenging manufacturing and process-control environments. The U9509 model delivers consistent electrical performance across a wide temperature and humidity range, making it a dependable choice for panel-mount applications requiring drop-in connector solutions.
Key Features
- M12 Eurofast Interface: Industry-standard 4-pin female receptacle with Pg9 panel-mounting thread for secure, standardized connections.
- Front-Mount Bulkhead Design: Allows quick connector installation and removal without tools; simplifies maintenance and system reconfiguration.
- IP68 Environmental Sealing: Fully sealed construction meets IP68, NEMA 1, NEMA 3, NEMA 4, and NEMA 6P protection ratings for wet, dusty, and corrosive environments.
- High-Reliability Contacts: Nickel-plated brass housing with 4× #22 AWG wire-rated for 4A at 250V AC continuous operation.
- Lot of 6 Units: Bulk purchase ensures spare inventory for multi-station systems and reduces downtime from connector failures.
Technical Specifications
- Connector Type: M12 Eurofast, 4-pin female receptacle
- Mounting: Front mount (panel-mount bulkhead with Pg9 thread)
- Rated Voltage: 250V AC
- Rated Current: 4A
- Wire Gauge: 4× #22 AWG
- Housing Material: Nickel-plated brass
- Jacket Material: PVC
- IP Rating: IP68
- NEMA Ratings: NEMA 1, NEMA 3, NEMA 4, NEMA 6P
- Operating Temperature: –40°C to +105°C
- Certifications: UL, CSA
- Quantity per Order: 6 units
Typical Applications
The Turck FK 4.4 U9509 is widely deployed in:
- Sensor and actuator panel-mount installations in manufacturing plants and process control systems.
- Automated assembly lines and material-handling equipment requiring sealed, field-replaceable connectors.
- Outdoor and hazardous-location electrical systems benefiting from IP68 environmental protection.
- Multi-station production systems where bulk connector inventory prevents unplanned downtime.
- Machine vision, pneumatic, and hydraulic control interfaces in industrial automation.
Compatibility & Replacements
Compatible With
- Turck M12 Eurofast actuator and sensor plugs (male connectors and cable assemblies).
- Standard M12 4-pin Eurofast cables and connectors conforming to industrial connector standards.
- Industrial control systems and PLC networks supporting M12 sensor/actuator interfaces.
- Panel-mount enclosures and machine control cabinets with Pg9 threaded openings.
Replaces / Drop-In Replacement For
- Turck FK 4.4 (all cable variants: FK 4.4-0.2, FK 4.4-0.3, FK 4.4-1, etc.) when front-mount bulkhead receptacles are required.
- Generic M12 4-pin female Eurofast receptacle connectors from other manufacturers, subject to mechanical and electrical compatibility verification.
Works With
- Turck connectivity platform, including IO-Link sensors and actuators.
- M12 Eurofast communication protocols: standard analog I/O, digital signals, and IO-Link device integration.
- Standard industrial Ethernet and fieldbusses (PROFINET, Modbus, EtherCAT) when paired with appropriate Turck gateway modules.
- RS-Logix Studio 5000, TIA Portal, and other major PLC/HMI software environments via integration with Turck sensor/actuator networks.
