TXM1.6R-M SIEMENS

TXM1.6R-M  SIEMENS Basis unit

Product  Description：

The TXM1.6R-M serves as a hardware interface for controlling electrical loads such as fans, pumps, or lighting systems within a building management system. As part of the TX-I/O range, it connects directly to a PXC or PXM automation station. The "M" in the product name indicates the inclusion of manual override switches on the front panel, allowing facility managers to manually toggle the relay states for testing or emergency operations without software intervention.

Product Parameters

Operating Voltage: 24 VDC supplied via the TX-I/O bus

Power Consumption: Approximately $1.6 \text{ W}$

Number of Outputs: 6 independent relay outputs

Output Type: Volt-free (dry) changeover contacts (form C)

Switching Capacity: Up to 250 VAC at $5 \text{ A}$ (resistive) or $2 \text{ A}$ (inductive)

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

Manual Control: 6 integrated three-position sliders (Auto, Off, On)

LED Indicators: Individual status LEDs for each relay output and a module status LED

Housing Material: Plastic with IP20 protection rating

Connection Terminals: Screw terminals for solid or stranded wires

Product Advantages

One of the primary strengths of the TXM1.6R-M is its seamless integration into the Siemens Desigo ecosystem, allowing for "hot swapping" where modules can be replaced while the system is powered. The manual override feature provides a critical layer of safety and convenience, enabling local control during commissioning or system maintenance. Furthermore, its space-saving design provides six high-capacity relays in a compact footprint, reducing the size requirements for control cabinets. The module also features built-in protection against bus interference and reverse polarity, ensuring high system availability.

Important Considerations and Precautions

When installing the TXM1.6R-M, it is essential to ensure that the total current load across the bus does not exceed the power supply limits of the automation station; an additional power supply module may be required for large I/O configurations. Always ensure the 24 VDC bus power is stable and within the specified range to prevent communication errors. Because the relay contacts are volt-free, the user must provide the appropriate fused external power for the loads being switched. In high-inductive load applications, such as large motors or solenoids, external suppression circuits (RC snubbers) are recommended to protect the relay contacts from excessive arcing and to extend the module's lifespan.

Product Applications

The TXM1.6R-M is versatile and widely used in HVAC and building control sectors.

In HVAC Systems: It is frequently used to control multi-stage fans, circulating pumps, and electric heating elements where reliable switching is required.

In Lighting Control: The module can manage groups of lights or specialized high-voltage actuators in commercial office spaces.

In Industrial Building Automation: It serves as a bridge between low-voltage control logic and high-voltage field devices like dampers and motorized valves.

In Safety and Alarm Systems: The changeover contacts allow the module to be used for signaling fault conditions or triggering external sirens and visual indicators when a specific automation logic threshold is met.

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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