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        3RK1901-1YA10

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        Siemens 3RK1901-1YA10 is a 22.5 mm SIRIUS AS-i SlimLine device connector that links adjacent compact modules to the AS-i bus and 24 V DC auxiliary supply.
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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.
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        Technical specifications for 3RK1901-1YA10

        • Manufacturer:
          Siemens
        • Part Number:
          3RK1901-1YA10
        • Product Family:
          Siemens Drives & Motion Control
        • Product Type:
          22.5 mm AS-i SlimLine Device Connector
        • Stock:
          1
        • Connector Width:
          22.5 mm
        • Bus Path:
          AS-Interface
        • Auxiliary Power Path:
          24 V DC Uaux
        • Uaux Infeed Protection:
          6 A Type C miniature circuit breaker
        • Mounting Function:
          Electrical interconnection between adjacent SlimLine Compact modules
        • Tariff Code:
          85369090
        • Country of origin:
          Germany
        • 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 Dual Path Module Chain Uaux Protection Replacement Check

        Features:

        • Interconnects adjacent 22.5 mm AS-i SlimLine Compact modules.
        • Carries the AS-i bus and 24 V DC auxiliary potential on separate paths.
        • Requires documented Uaux infeed protection before the module group is energized.
        The connector forms the electrical bridge beneath compatible SlimLine Compact devices rather than serving as a generic DIN-rail jumper.

        AS-i data continues through its bus contacts while Uaux supplies the module functions that need separate auxiliary power.

        Connector width, module family and protection arrangement must all agree before the group is assembled.

        The Siemens 3RK1901-1YA10 22.5 mm AS-i SlimLine Device Connector may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Siemens 3RK1901-1YA10 22.5 mm AS-i SlimLine Device Connector 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.

        Keeping bus communication separate from auxiliary power

        • AS-i contacts: The bus path carries cyclic communication between the master and connected SlimLine Compact devices.
        • Uaux contacts: A separate 24 V DC path supplies functions that do not draw their load power from the bus.
        • Common assembly: Both paths pass through one aligned connector system beneath adjacent modules.
        • Fault tracing: Loss of Uaux and loss of AS-i communication are checked as separate conditions.

        Building a continuous SlimLine Compact group

        • Position width: The connector corresponds to one 22.5 mm module pitch.
        • Adjacent alignment: Neighboring modules must seat correctly so their underside contacts meet the connector.
        • Bus continuation: Each correctly fitted position continues AS-i toward the following device.
        • Family limit: Non-SlimLine hardware is excluded even when its enclosure width looks similar.

        Protecting the auxiliary infeed before distribution

        • Breaker rating: The documented Uaux feed uses a 6 A miniature circuit breaker.
        • Trip characteristic: Type C behavior accommodates the permitted inrush while protecting the distribution path.
        • Feed location: Protection is placed at the auxiliary supply infeed, before the connector chain.
        • Inspection point: Breaker state and 24 V DC polarity are checked when modules communicate but auxiliary functions remain inactive.

        Matching the connector to the installed assembly

        • Order number: The full 3RK1901-1YA10 identifier confirms the 22.5 mm device connector.
        • Module family: Every attached device must be an approved AS-i SlimLine Compact module.
        • Contact condition: Connector contacts and module seating surfaces are inspected before reassembly.
        • Power isolation: AS-i and Uaux supplies are both isolated before the module chain is separated.
        Description
        Siemens 3RK1901-1YA10 is a 22.5 mm device connector for SIRIUS AS-Interface SlimLine Compact modules. It establishes the electrical path that lets adjacent modules share the AS-i communication line and the separate 24 V DC auxiliary supply.

        When modules are placed together, 3RK1901-1YA10 carries AS-i data from one SlimLine Compact position to the next while Uaux follows its own conductor path. This arrangement keeps communication and auxiliary load power logically separate inside the same modular connection system.

        The Uaux feed associated with 3RK1901-1YA10 requires a 6 A Type C miniature circuit breaker at its infeed. Only documented AS-i SlimLine Compact modules may use the connector, so housing width alone does not establish electrical compatibility.
        Alternative Names
        3RK19011YA10 Siemens 3RK1901-1YA10 Device Connector 3RK 1901-1YA10 3RK1901 1YA10 SIRIUS 3RK1901-1YA10 AS-i Connector 3RK1901-1YA10 Siemens 3RK19011YA10 3RK190I-1YA10
        Technical notes
        Use Siemens 3RK1901-1YA10 only with documented AS-i SlimLine Compact modules and protect the Uaux infeed with a 6 A Type C breaker.
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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
        What does Siemens 3RK1901-1YA10 distribute between SlimLine modules?
        Siemens 3RK1901-1YA10 distributes the AS-i bus and a separate 24 V DC Uaux path between compatible SlimLine Compact positions.
        Why can AS-i communication remain present when a 3RK1901-1YA10-connected function is inactive?
        The AS-i bus and Uaux use separate contacts in 3RK1901-1YA10, so a missing auxiliary supply can disable a function without removing bus communication.
        Which breaker is required for the Uaux feed used with Siemens 3RK1901-1YA10?
        The documented Siemens 3RK1901-1YA10 arrangement protects the Uaux infeed with a 6 A Type C miniature circuit breaker.
        Can a generic 22.5 mm module be mounted on 3RK1901-1YA10?
        No. 3RK1901-1YA10 is restricted to documented AS-i SlimLine Compact modules; matching width alone is insufficient.
        What should be isolated before separating modules from Siemens 3RK1901-1YA10?
        Isolate both the AS-i circuit and the 24 V DC Uaux supply before removing modules from Siemens 3RK1901-1YA10.

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