Mitsubishi Electric FX3U-48MR/DS FX3U Series Programmable Controller

SKU FX3U-48MR/DS

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Mitsubishi Electric
Product No.: FX3U-48MR/DS
Country of origin:United States
Product Type: Programmable Logic Controllers
Payment: T/T, Western Union
Weight: 500g
Dimensions: 18.2cm x 9cm x 8.6cm
Shipping port: Xiamen
Warranty: 12 months

Description

Engineered to handle complex automation tasks in modern industrial environments, the FX3U-48MR/DS is a high-performance base unit belonging to the renowned MELSEC FX3U series of programmable logic controllers. This compact PLC features a robust configuration of 24 digital inputs and 24 relay outputs, making it highly suitable for applications requiring reliable mechanical switching and high-speed control logic. Operating on a 24V DC power supply, this controller provides exceptional processing speeds and flexible expansion capabilities through its unique dual-bus architecture, allowing seamless integration with additional digital, analog, and network communication adapters.

Features

High-speed execution time of 0.065 microseconds per basic instruction.
Large internal program memory of up to 64,000 steps for complex control logic.
Integrated 24 digital inputs (24V DC, sink or source configurable).
Integrated 24 mechanical relay outputs (rated up to 2A per point).
Support for high-speed counter inputs (up to 100 kHz) and positioning tasks.
Dual-bus system structure allowing simultaneous connection of FX series expansion blocks and high-speed FX3U special adapters.
Inherent maintenance-free operation with integrated real-time clock.

Applications

Conveyor and material handling systems
Packaging and labeling machines
Food and beverage processing equipment
Water and wastewater pump control
HVAC and building automation networks

Technical Specifications

Manufacturer	Mitsubishi Electric
Part Number / Model	FX3U-48MR/DS
Controller Series	MELSEC FX3U
Power Supply Voltage	24V DC (+20% / -15%)
Power Consumption	35W
Integrated Inputs	24 points (24V DC, sink/source)
Integrated Outputs	24 points (Relay, 2A/point, 8A maximum per common terminal)
Total I/O Points	48 points
Execution Speed	0.065 microseconds (basic instruction)
Program Memory	64,000 steps (RAM / Flash memory cassette optional)
Communication Port	RS-422 (built-in)
Operating Temperature	0 to 55 degC
Storage Temperature	-25 to 75 degC
Mounting Type	35mm DIN Rail or direct screw mounting

Connections and Interfaces

Terminal Block Label	Function Assignment
24V / 0V	Main DC power supply input terminals
S/S	Input signal common terminal (Sink or Source selection)
X0 to X27	Digital input connection points
Y0 to Y27	Relay output connection points
COM0 to COM5	Common reference terminals for relay outputs
Protective Ground (PE)	System safety grounding point

Installation Guidelines

Ensure all incoming power lines are disconnected before performing installation or wiring work.
Mount the unit horizontally on a standard 35mm DIN rail or via direct mounting screws onto a flat panel.
Maintain a minimum ventilation clearance of 50mm above, below, and on the sides of the PLC to prevent heat buildup.
Keep signal and high-voltage AC cables in separate cable ducts to minimize electromagnetic interference (EMI).
Connect the protective ground terminal to a dedicated class D ground (resistance of 100 ohms or less).

Compliance and Certifications

CE (EMC and Low Voltage Directive)
UL / cUL Listed
KC (Korean Certification)

FAQ

What power supply does the FX3U-48MR/DS require?

The FX3U-48MR/DS requires a 24V DC power supply, as indicated by the 'DS' suffix in the model number.

What output type is used in the FX3U-48MR/DS controller?

This model is equipped with mechanical relay outputs, which support up to 2A per point for both AC and DC switching application loads.

Is the digital input configuration of this PLC sink or source?

The 24V DC digital inputs on the FX3U-48MR/DS can be configured as either sink or source depending on the wiring of the S/S terminal.

View all FAQs →

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Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Product Image	Model Number / Title	Condition	Availability	Action
	Allen-Bradley 1747-L541 SLC 500 SLC 5/04 16K Controller	Original New	In Stock	View Details

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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