Mitsubishi FX2N-48ER Digital I/O Module – MELSEC FX2N Series
When a critical I/O expansion module fails on the production floor, every minute of downtime translates directly into lost output, missed delivery windows, and escalating maintenance costs. The FX2N-48ER is the backbone of thousands of MELSEC FX2N-based control systems worldwide — without it, the entire PLC network loses its ability to interface with field devices, sensors, and actuators, bringing automated lines to a complete halt.
The Mitsubishi FX2N-48ER is a high-density digital I/O expansion module within the MELSEC FX2N compact PLC series — one of Mitsubishi Electric’s most widely deployed and long-running automation platforms. Offering 24 DC sink/source inputs and 24 relay outputs in a single compact unit, the FX2N-48ER delivers the I/O density required for mid-scale machine control, packaging lines, and process automation. Its relay output design makes it universally compatible with AC and DC loads, cementing its position as a preferred choice for OEMs and system integrators across Asia, Europe, and the Americas.
Technical Specifications
- Model / SKU: FX2N-48ER
- Series: MELSEC FX2N
- Manufacturer: Mitsubishi Electric
- Module Type: Digital I/O Expansion Module
- Input Points: 24 (DC sink/source, 24 VDC)
- Output Points: 24 (Relay contact output)
- Total I/O Points: 48
- Output Type: Relay (R)
- Input Voltage: 24 VDC
- Output Rated Voltage: 240 VAC / 30 VDC max
- Output Rated Current: 2 A per point
- Power Supply: Supplied from base unit via expansion bus
- Connection Method: Screw terminal block
- Dimensions (W×H×D): 220 × 90 × 87 mm (approx.)
- Weight: Approx. 0.65 kg
- Operating Temperature: 0 °C to 55 °C
- Storage Temperature: –20 °C to 70 °C
- Humidity: 35% to 85% RH (non-condensing)
- Vibration Resistance: 10–57 Hz, 0.075 mm; 57–150 Hz, 9.8 m/s²
- Applicable Standards: CE, UL (refer to Mitsubishi Electric official documentation)
Key Features & Benefits
- High I/O Density: 48 points (24 in + 24 out) in a single compact module reduces panel space and wiring complexity.
- Relay Output Versatility: Relay contacts support both AC and DC loads, enabling integration with a wide range of field devices without additional interface relays.
- Seamless FX2N Expansion: Connects directly to the FX2N main unit via the dedicated expansion bus — no additional power supply or communication card required.
- Robust Industrial Design: Rated for continuous operation in harsh industrial environments with wide temperature tolerance and vibration resistance.
- Long-Term Availability: As a legacy yet widely supported module, replacement units and compatible spares remain available through authorized distributors like Konmask.com.
- Screw Terminal Wiring: Reliable field-wiring connections suitable for industrial-grade cable management.
Industry & Equipment Applications
- Packaging Machinery: Conveyor sequencing, filling machine I/O control, labeling line automation.
- Textile & Printing Equipment: Multi-axis coordination, tension control signal I/O.
- Food & Beverage Processing: Solenoid valve control, sensor feedback integration.
- HVAC & Building Automation: Fan/pump relay switching, alarm output management.
- Machine Tool Control: CNC auxiliary I/O expansion, spindle interlock circuits.
- Water Treatment Plants: Pump station control, level sensor input processing.
- Automotive Assembly Lines: Fixture control, part-present detection, reject gate actuation.
System Integration & Compatible Parts
The FX2N-48ER is designed to expand the I/O capacity of the MELSEC FX2N main unit family. Compatible and commonly paired components include:
- Main Units: FX2N-16MR, FX2N-32MR, FX2N-48MR, FX2N-64MR, FX2N-80MR, FX2N-128MR
- Other I/O Expansion Modules: FX2N-16EX, FX2N-16EYR, FX2N-32ER, FX2N-48ET
- Special Function Modules: FX2N-4AD, FX2N-4DA, FX2N-1PG, FX2N-10PG
- Communication Modules: FX2N-232-BD, FX2N-485-BD, FX2N-CNV-BD
- Programming Software: GX Developer, GX Works2
Our Quality Assurance Process
At Konmask.com, every Mitsubishi FX2N-48ER unit undergoes a structured verification process before shipment:
- Source Verification: Units are sourced from authorized distributors or verified surplus channels with full traceability documentation.
- Visual Inspection: Physical examination for label integrity, terminal condition, housing damage, and counterfeit indicators.
- Functional Testing: Where applicable, I/O point continuity and relay operation are verified using test fixtures.
- Packaging: Anti-static packaging with moisture barrier and shock-absorbing foam for safe international transit.
- Documentation: Certificate of conformity and inspection report available upon request.
How to Order
- Submit an inquiry via the Contact / RFQ form on this page with your required quantity and delivery timeline.
- Our technical team will confirm availability, lead time, and provide a formal quotation within 1 business day.
- Upon order confirmation, we arrange secure packaging and international shipping via DHL, FedEx, or UPS.
- Tracking information and shipping documents (commercial invoice, packing list) are provided upon dispatch.
Why Choose Konmask.com?
- ✅ B2B Industrial Focus: We specialize exclusively in industrial automation components — PLC modules, DCS parts, servo drives, and HMI units.
- ✅ Global Shipping: Reliable export logistics to North America, Europe, Southeast Asia, and the Middle East.
- ✅ Technical Support: Our team includes experienced automation engineers who can assist with compatibility verification and system integration questions.
- ✅ Competitive Lead Times: Extensive supplier network enables fast sourcing for both standard and obsolete parts.
- ✅ Transparent Communication: Clear quotations, no hidden fees, and responsive after-sales support.
Frequently Asked Questions
Q: Is the FX2N-48ER compatible with the FX3U series main units?
A: The FX2N-48ER is designed for the FX2N series. While some FX3U units support FX2N expansion modules via an adapter (FX3U-CNV-ADP + FX2N-CNV-BD), direct compatibility depends on your specific configuration. Please contact us to confirm before ordering.
Q: What is the maximum number of FX2N-48ER modules that can be connected to one FX2N main unit?
A: The FX2N series supports up to 8 expansion modules, with a maximum of 256 I/O points total (including the main unit). The actual number of FX2N-48ER units depends on the main unit’s I/O budget and power supply capacity.
Q: Do you supply new or refurbished units?
A: We supply both new-in-box and tested refurbished units depending on availability. The condition is clearly stated in the quotation. All units pass our quality inspection process regardless of condition.
Q: Can I get a datasheet or wiring diagram for the FX2N-48ER?
A: Yes. Contact us via email at support@konmask.com and we will provide the official Mitsubishi Electric FX2N hardware manual and wiring diagrams.
Q: What is the typical lead time for the FX2N-48ER?
A: Lead time varies by stock availability. In-stock units typically ship within 2–3 business days. For sourced units, lead time is generally 7–15 business days. We confirm exact timelines in the quotation.
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