Schneider Electric TAC Xenta 451A Universal Input/Analog Output Module
The Schneider Electric TAC Xenta 451A (Part Number: 0-073-0285-0) is a modular, high-efficiency input/output expansion block engineered for specialized Building Management Systems (BMS) and automated HVAC installations. Operating seamlessly as a remote I/O terminal for a master TAC Xenta controller or as an independent node on an Echelon LonWorks network, it delivers precision data scanning and actuator control. Built for dense industrial environments, the module features a resilient, compact IP20 enclosure optimized for quick DIN-rail clip mounting inside control panels. By processing a versatile spectrum of physical inputs—including thermistors, 0–10V loops, and digital dry contacts—the 451A serves as a versatile link connecting field sensors directly to upstream network intelligence.
| Specifications | |
| Product Make | SCHNEIDER ELECTRIC |
| Model Number | TAC Xenta 451A |
| Part Number (MPN) | 0-073-0285-0 / 007302850 |
| Total I/O Count | Â 10 Points |
| Universal Inputs (UI) | 8 Points |
| Analog Outputs (AO) | 2 Points |
| Network Interface | LonWorks TP/FT-10 Free Topology channel |
| Transmission Rate | 78 kbps |
| Supply Voltage | 24 V AC ±10%, 50/60 Hz or 19–40 V DC |
| Power Consumption | Max. 3 W (Transformer sizing: 6 VA) |
| Condition | GOOD |
| Warranty | 1 YEAR |
| Country of Origin | SWEDEN |
| Protection Degree | IP20 |
| Length | 77 mm |
| Width | 90 mm |
| Height | 110 mm |
| Weight | 280 g |









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