Description:

The Mitsubishi FX3U‑4LC PLC module is an expansion unit used in industrial automation systems to provide additional transistor outputs for FX3U series programmable logic controllers. It is commonly installed in control panels and PLC racks to extend the PLC’s output capability for driving field devices. Maintenance teams, OEMs, and system integrators use this module for I/O expansion, machine upgrades, and replacement of failed or aging output modules.

Applications:

The Mitsubishi FX3U‑4LC module is widely used in manufacturing and process automation environments requiring extra discrete transistor outputs. It is commonly found in conveyor systems, packaging machinery, material handling equipment, automated assembly lines, and stand‑alone machines where supplemental outputs are needed to control actuators, indicator lights, solenoids, and small DC loads.

Technical Specifications:

• Model: FX3U‑4LC
• Module type: Output expansion unit for FX3U PLC
• Output points: 4 discrete transistor outputs
• Output voltage: 24 VDC
• Output type: Transistor (NPN/PNP dependent on system configuration)
• Output current: Typical industrial logic levels per channel
• Connection: Field terminal screw wiring
• Mounting: FX3U PLC base rack slot
• Compatibility: Mitsubishi FX3U series PLCs
• Indicators: Output status LEDs
• Protection: Transient suppression (platform dependent)
• Operating temperature: Industrial range
• Designed for: Discrete output expansion in automation systems

Common Replacements:

• Mitsubishi FX3U‑4H
• Omron SY5120P
• Allen‑Bradley 1734‑OB4