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        • Lifecycle status

          Active / Available from OEM
          Quotations, product manuals, and Desigo TX-I/O point-matching assistance are available from Apter Power for TXM1.6R.

        TXM1.6R

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        1001 reviews ｜ Need a Specific Revision?
        Siemens TXM1.6R is a Desigo TX-I/O module with six individually configurable volt-free relay outputs and one green status LED per output point.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for TXM1.6R

        • Manufacturer:
          Siemens
        • Part Number:
          TXM1.6R
        • Product Family:
          Siemens Simatic DP
        • Product Type:
          Desigo TX-I/O Six-Relay Output Module
        • Stock:
          1
        • Relay Outputs:
          6
        • Contact Arrangement:
          Volt-free changeover contacts
        • Switching Voltage:
          12–250 V AC or 12–30 V DC
        • Maximum Switching Current:
          4 A
        • Output Modes:
          Maintained, pulse, multistage and three-position
        • Point Indication:
          One green status LED per output
        • Module Construction:
          Separate terminal base and plug-in I/O electronics
        • Bus Connection:
          Self-establishing
        • Terminal Isolation:
          Supported for commissioning and measurement
        • Front Protection:
          IP30
        • Terminal Base Protection:
          IP20
        • Operating Temperature:
          -5 to +50 °C
        • Storage and Transport Temperature:
          -25 to +70 °C
        • Weight:
          0.531 lbs (0.241 kg)
        • Estimated shipping dimensions:
          10.2×8.3×7.3cm
        • Tariff Code:
          85364900
        • Country of origin:
          Sweden
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Relay Modes Terminal Wiring Bus & Replacement Voltage Separation

        Features:

        • Six volt-free changeover contacts are individually configurable.
        • Maintained, pulsed, multistage and three-position command modes are supported.
        • The terminal base remains wired when the plug-in electronics are removed.
        Siemens TXM1.6R receives output commands from the TX-I/O bus and applies them to six independent relay mechanisms.

        External load voltage stays on the field-contact side, while the electronic section handles address, bus and point-state functions.

        Per-point LEDs and terminal isolation provide two separate checks: commanded state at the face and electrical measurement at the terminals.

        The Siemens TXM1.6R Desigo TX-I/O relay module is supported with quotations, English technical records and point-configuration review from Apter Power.
        Siemens TXM1.6R Desigo TX-I/O Six-Relay Output Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        From Bus Command to Contact Action

        • Maintained output: The relay holds its commanded contact state until a new command arrives.
        • Pulse output: The output changes for the configured pulse interval and then returns.
        • Multistage logic: Several points can form mutually exclusive staged switching sequences.
        • Three-position control: Paired relays use the internal stroke-time model for open/close positioning.

        Wiring and Electronics Relationship

        • Field side: Load conductors terminate on the base rather than on the removable electronics.
        • Plug-in section: The electronic module carries relay control, bus and indication functions.
        • Measurement access: Terminal isolation allows field checks without energizing the electronics.
        • Replacement path: Electronics can be removed while the field terminations stay in place.

        Module Continuity Rules

        • Bus entry: The TX-I/O bus connection establishes when the module is seated on its base.
        • Addressing: The installed address key ties the point assignment to the module position.
        • Removal: Taking out one plug-in module does not interrupt the remaining TX-I/O modules.
        • Address retention: The address key remains plugged into the terminal base when the plug-in I/O module is replaced.

        Contact-Circuit Separation

        • Mains switching: Relay contacts may switch circuits up to AC 250 V.
        • Low-voltage switching: SELV or PELV 24 V circuits can occupy adjacent points.
        • Phase separation: Different phases are permitted on adjacent contacts under the documented wiring rules.
        • Neutral and earth: N and PE conductors are routed through the required external terminal strips.
        Description
        Siemens TXM1.6R is a six-point relay output module in the Desigo TX-I/O family. Each point provides a volt-free changeover contact, allowing the module to switch field circuits without placing the external load voltage on the TX-I/O bus.

        The outputs of TXM1.6R can be assigned as maintained or pulsed contacts, arranged in multistage sequences, or paired for three-position control using the internal stroke-time algorithm. A green LED follows each output point so commanded relay state can be checked at the module face.

        A separable terminal base holds the field conductors while the plug-in electronics of TXM1.6R can be removed. The bus connection establishes automatically through the module assembly, and terminal isolation permits measurements during commissioning without disturbing the remaining TX-I/O modules.

        Adjacent points on TXM1.6R may carry mixed AC 250 V mains and SELV/PELV 24 V circuits or different phases when the documented wiring rules are followed. Neutral and protective-earth conductors use the required terminal strips, preserving the distinction between switched load circuits and the TX-I/O communication path.
        Alternative Names
        Siemens TXM1.6R Desigo TXM1.6R TX-I/O TXM1.6R Relay Module TXM1.6R Six-Relay Output Module TXM16R TXM1 6R Siemens Desigo TX-I/O TXM1.6R BPZ TXM1.6R Relay Output
        Technical notes
        Siemens TXM1.6R has no local override controls; do not confuse it with TXM1.6R-M, which adds a local override device and multicolor indication.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Does TXM1.6R supply voltage to the connected load?
        No. TXM1.6R provides six volt-free changeover contacts; the external field circuit supplies the voltage that the relay contact switches.
        Which TXM1.6R mode should be used for a three-position actuator?
        TXM1.6R supports a three-position output mode that pairs relay actions with an internal stroke-time algorithm; configure the point pair for the actuator's open and close paths.
        Can the electronics of TXM1.6R be replaced without removing field wiring?
        Yes. TXM1.6R separates the terminal base from the plug-in I/O electronics, so the wired base can remain installed while the electronic section is removed.
        Why is a TXM1.6R point LED on when the field device does not operate?
        The green LED on TXM1.6R confirms the commanded relay state, not the presence of external load power. Check the switched field supply, contact wiring and device circuit separately.
        May TXM1.6R switch AC mains and 24 V safety extra-low voltage on adjacent points?
        TXM1.6R permits mixed AC 250 V and SELV/PELV 24 V circuits, including mixed phases, when the documented wiring separation and terminal-strip requirements are observed.
        How can TXM1.6R be distinguished from TXM1.6R-M during ordering?
        TXM1.6R is the standard six-relay module without local override controls; TXM1.6R-M adds local override operation and different local indication.

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