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The DSDX451L Expansion Unit from ABB is a robust and scalable module designed to extend the capacity of distributed control systems (DCS). As part of the S400 I/O product range, it provides reliable performance, flexible integration, and compliance with international safety standards, making it suitable for critical industrial applications.
Model Number / Order Code: DSDX451L
Type: Expansion Unit
Manufacturer: ABB
Condition: Brand New
System Compatibility: DCS (Distributed Control System)
Product Range: S400 I/O
Weight: 2.72 kg
Dimensions: 23.7 × 21.8 × 8.7 cm
HS Code: 8537101190
Origin: Sweden
MOQ: 1 unit
Lifecycle Status: Active (not discontinued)
Lead Time: In stock, ready to ship
Operating Temperature Range: Wide range for industrial environments
Communication Protocols: MODBUS, PROFIBUS, Ethernet router support
Certifications: CE, UL compliant
Modular design for easy installation and scalability
Rugged construction ensures durability in harsh industrial conditions
Supports multiple communication protocols for seamless integration
Reliable performance across manufacturing, oil & gas, and power generation sectors
Certified to CE and UL standards for safe operation
Reduces downtime with long-term reliability and minimal maintenance requirements
Manufacturing plants requiring scalable I/O expansion
Oil & gas facilities with demanding automation needs
Power generation systems needing reliable remote I/O modules
Industrial environments requiring flexible integration with MODBUS and PROFIBUS networks
Q: What communication protocols are supported by the DSDX451L? A: It supports MODBUS, PROFIBUS, and Ethernet router connectivity.
Q: Is this expansion unit suitable for harsh environments? A: Yes, it is engineered with rugged construction to withstand demanding industrial conditions.
Q: Does the module comply with international safety standards? A: Yes, it is CE and UL certified, ensuring safe and reliable operation.

Quick dispatch from our global inventory to reduce downtime and ensure uninterrupted operations.
All parts are sourced from reputable manufacturers and undergo thorough quality checks.
Extensive stock of industrial automation and discontinued parts, ready for immediate shipment.
Every product — including obsolete items — is covered by a 12-month warranty and 30-day return guarantee.
All product names, trademarks, brands, and logos mentioned on this website are the property of their respective owners.These names and trademarks are used for identification and reference purposes only.We are an independent supplier of industrial automation spare parts.We are not an authorized distributor, dealer, or representative of any manufacturer.Products supplied may include surplus inventory or unused items.We do not claim any affiliation with or endorsement by the original manufacturers.