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Schneider Electric 140CPU21304C Modicon Quantum CPU Module

(5.00)5 Reviews
10 in stock

The Schneider Electric 140CPU21304C is a Modicon Quantum CPU with conformal coating, fast logic speed, Modbus communication, and support for local and remote I/O in harsh environments.

  • 100% genuine products in stock with fast delivery.
  • 30-day return policy for quality assurance.
  • 12-month warranty for peace of mind.
SKU: 140CPU21304C
Brands:

Product details

140CPU21304C CPU Module Overview

  • Author: Powergear X Automation
  • Industrial CPU for Modicon Quantum racks
  • Designed for stable control tasks
  • Optimized for harsh environments

Core Identification

  • Manufacturer: Schneider Electric
  • Series: Modicon Quantum
  • Model: 140CPU21304C
  • Mounting: Rack-based installation

Processor and Memory

  • RAM capacity: 768 KB
  • Program memory: 16 KB
  • Supports math instructions
  • Fast Boolean execution at ~0.3 µs

Environmental Protection

  • Conformal coated electronics
  • Improved resistance to dust and moisture
  • Stable operation in harsh cabinets
  • Operating temperature: 0 to 60 °C

Communication Interfaces

  • 1 x RS232 Modbus port
  • 1 x Modbus Plus port
  • Reliable network integration
  • Supports mixed control systems

I/O System Support

  • Compatible with local I/O racks
  • Supports remote I/O drops
  • Flexible system expansion
  • Ideal for distributed control

Reliability Features

  • Battery-backed RAM
  • Data retention during power loss
  • Integrated watchdog function
  • Improved system safety

Status Monitoring

  • Clear LED indicators
  • Status for RUN and ERR
  • I/O and COMM feedback
  • Easy troubleshooting

Main Selling Points

  • Suitable for harsh environments
  • Fast and stable logic processing
  • Simple rack integration
  • Long service life design

Professional FAQ

  • Is conformal coating needed in control cabinets?
    • Yes. It helps protect against humidity and dust.
  • How do I choose between Modbus and Modbus Plus?
    • Use Modbus Plus for faster legacy networks.
  • Is this CPU suitable for system upgrades?
    • Yes. It fits existing Quantum racks.
  • What happens if power is lost?
    • Battery-backed RAM keeps key data safe.
  • When should I select remote I/O support?
    • Use it for large plants or long distances.

Warranty and Shipping

  • Warranty: 12 months
  • Fully tested before shipment
  • Shipping via FedEx, UPS, DHL

Contact Information

Copyright © 2025 Powergear X Automation Limited. All rights reserved.

Partner
Ubest Automation Limited |
PLCDCS HUB Limited

Specifications

  • BrandSchneider Electric
  • Model TypeModicon Quantum
  • Part Number140CPU21304C
  • ConditionBrand New
  • Warranty12 Months

Additional information

Weight2.04 kg
Dimensions315 × 165 × 50 mm
Country Of Origin

United States

Customers Reviews

(5)
  1. Jason Miller

    I purchased the Schneider Electric 140CPU21304C Modicon Quantum CPU Module and was extremely impressed. The product arrived brand new and exactly as described. Shipping was incredibly fast — I received it within 3 days, which helped us avoid costly downtime. The support team was professional, answered my questions promptly, and assisted with setup guidance. We installed this CPU in our manufacturing line PLC system, and it’s running flawlessly with improved performance. Highly recommend for anyone needing a reliable automation upgrade!

  2. Rachel Thompson

    This Schneider Electric Modicon Quantum CPU Module was delivered quickly and in perfect condition. The unit was clearly brand new, with full labeling and packaging. The team’s communication and professional service made ordering simple and reassuring. We’re using it to replace an aging controller at our facility, and it integrated seamlessly with our existing hardware. Performance is solid and stable. Very satisfied with the purchase and the speedy shipping!

  3. Brandon Lee

    Great experience with this Schneider Electric 140CPU21304C! The product arrived new and ready to install. Shipping was impressively fast, and the seller provided detailed support when I needed help verifying compatibility. Installed it in our water treatment control system and it’s performing reliably with zero issues. Excellent upgrade from our old CPU. Professional service and rapid delivery — highly recommended!

  4. Emily Carter

    Received my Schneider Electric Modicon Quantum CPU Module in record time — brand new and perfectly packed. The customer service team was knowledgeable and helped confirm it was the correct CPU for our automation project. We installed it on a conveyor line controller and noticed improved processing speed right away. Great product quality and support. Will buy again!

  5. Michael Rodriguez

    Absolutely pleased with the Schneider Electric 140CPU21304C Modicon Quantum unit. The module arrived new, with professional packaging and very fast shipping. The seller’s team was proactive and answered my technical questions before purchase. We fitted it into our refinery PLC cabinet, and it works flawlessly under load. Excellent reliability and service throughout the process. Highly recommend for any industrial controls upgrade!

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