TAC Xenta 400 0-073-0902-0 SCHNEIDER

TAC Xenta 400 0-073-0902-0 SCHNEIDER Power module

Product  Description：

The TAC Xenta 400 is an advanced programmable controller that functions as a core component of the TAC building management system. It is designed to work within a LonWorks network using the LonTalk protocol, ensuring that it can communicate seamlessly with other LonMark-certified devices. This model is characterized by its modular design, which allows for the connection of various I/O extension modules to meet specific site requirements. It typically features a built-in display or supports the connection of a handheld operator terminal for local monitoring and configuration.

Product Parameters

Power Supply: $24 \text{ VAC} \pm 10\%$ at $50/60 \text{ Hz}$ or $19-40 \text{ VDC}$

Power Consumption: Maximum $5 \text{ W}$ for the base unit

Communication Protocol: LonTalk protocol using FTT-10A (Free Topology Transceiver) at $78 \text{ kbps}$

Processor: 16-bit microprocessor

Memory: Non-volatile Flash memory for application storage and RAM for data processing

Operating Temperature: $0^\circ\text{C}$ to $+50^\circ\text{C}$ ($32^\circ\text{F}$ to $122^\circ\text{F}$)

Storage Temperature: $-20^\circ\text{C}$ to $+50^\circ\text{C}$ ($-4^\circ\text{F}$ to $122^\circ\text{F}$)

Humidity: Maximum 90% RH non-condensing

Real-Time Clock: Built-in with battery backup for up to 5 years

Enclosure Rating: IP20

Mounting: Standard DIN rail $35 \text{ mm}$

Product Advantages

The TAC Xenta 400 offers significant flexibility through its modular architecture, enabling users to add I/O modules as needed without replacing the entire control unit. Because it is LonMark certified, it avoids vendor lock-in, allowing integration into diverse open-protocol networks. The controller is highly programmable, supporting complex control strategies for energy optimization and occupant comfort. Furthermore, its support for local operator terminals allows maintenance staff to troubleshoot or adjust settings directly at the equipment level without needing a central workstation. Its compact DIN rail design also saves valuable space within electrical panels.

Important Considerations and Precautions

Users must ensure that the power supply remains within the specified $24 \text{ VAC/VDC}$ range, as overvoltage can lead to permanent hardware failure. Since this is an electronic device, it should be installed in a clean, dry environment protected from direct sunlight and extreme vibrations. Special care should be taken with the LonWorks network wiring; using the correct cable type and following FTT-10 topology rules is essential for stable communication. It is also important to note that the TAC Xenta line is a legacy series, and users should verify the availability of replacement parts or technical support for long-term facility planning, as Schneider Electric has transitioned many customers toward the EcoStruxure platform.

Product Applications

This controller is primarily utilized in medium to large-scale commercial building automation projects. Common applications include the control of air handling units (AHUs), where it manages fans, dampers, and heating/cooling valves. It is also frequently used for chilled water plant control and boiler room management. Beyond HVAC, the TAC Xenta 400 can be programmed for lighting control schedules and integrated with fire or security systems for coordinated emergency responses. Its ability to act as a gateway makes it ideal for facilities where data from various field devices needs to be aggregated and sent to a central Building Management System (BMS) for high-level monitoring and energy reporting.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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