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        • Lifecycle status

          Discontinued / Obsolete by OEM
          For 3RK1903-0AA00, Apter Power offers quotations, manuals, terminal selection, and exact-model confirmation.

        3RK1903-0AA00

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        1001 reviews ｜ Need a Specific Revision?
        Siemens 3RK1903-0AA00 is an ET 200S TM-P15 S27-01 terminal module that feeds U1 and U2 potential groups to a PM-D power module in a motor-starter station.
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        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.
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        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 3RK1903-0AA00

        • Manufacturer:
          Siemens
        • Part Number:
          3RK1903-0AA00
        • Product Family:
          Siemens Drives & Motion Control
        • Product Type:
          ET 200S TM-P15 S27-01 PM-D Terminal Module
        • Stock:
          1
        • Potential Group Inputs:
          U1 and U2
        • Rated Operating Voltage:
          24 V DC
        • Rated Current:
          10 A
        • Rated Insulation Voltage:
          500 V
        • Solid Conductor Range:
          0.14 to 2.5 mm²
        • Ferruled Flexible Conductor Range:
          0.14 to 1.5 mm²
        • Protection Rating:
          IP20
        • Weight:
          0.485 lbs (0.22 kg)
        • Estimated shipping dimensions:
          15x117.5x102mm
        • 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 Potential Infeed PM-D Interface Conductor Fit Station Boundary

        Features:

        • Provides the fixed TM-P15 S27-01 base for a PM-D power module.
        • Feeds U1 and U2 potential groups through documented 24 V DC terminals.
        • Retains infeed wiring when the removable PM-D electronics are exchanged.
        The base separates permanent field terminations from the plug-in power-module electronics.

        Both potential inputs travel from the terminal clamps to the matched PM-D interface inside one 15 mm position.

        Current, insulation and conductor limits apply to the terminal path and must be checked before station power-up.

        The Siemens 3RK1903-0AA00 ET 200S TM-P15 S27-01 PM-D Terminal Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Siemens 3RK1903-0AA00 ET 200S TM-P15 S27-01 PM-D Terminal 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.

        Bringing U1 and U2 into the PM-D position

        • U1 path: The first supply conductor lands on its assigned terminal and continues to the PM-D contact.
        • U2 path: The second potential follows a separate terminal path into the same module position.
        • Current scope: The 10 A rating governs the terminal infeed path, not a single downstream starter channel.
        • Polarity check: Both conductors are identified against the station drawing before the PM-D is inserted.

        Connecting fixed wiring to removable electronics

        • Terminal body: The rail-mounted base holds incoming field conductors.
        • Front engagement: The PM-D plugs into the terminal-module contact interface.
        • Removal state: Disconnecting the PM-D leaves U1/U2 wiring mechanically retained on the base.
        • Variant match: The TM-P15 S27-01 order number must agree with the power-module configuration.

        Selecting wire preparation for the terminal range

        • Solid wire: Unferruled solid conductors use the documented 0.14 to 2.5 mm² range.
        • Flexible wire: Ferruled flexible conductors use the narrower 0.14 to 1.5 mm² range.
        • Clamp inspection: No copper should remain exposed outside the terminal after tightening.
        • Load check: Terminal heating is evaluated against both conductor size and the shared infeed current.

        Keeping the terminal base within its ET 200S role

        • One position: The 15 mm body occupies the PM-D terminal location in the starter station.
        • IP20 scope: Finger protection applies only after the station is assembled as documented.
        • No output role: The base distributes supply potential; it does not generate starter commands.
        • Commissioning order: Wiring is checked first, the PM-D is seated next, and the potential group is energized last.
        Description
        Siemens 3RK1903-0AA00 is a TM-P15 S27-01 terminal module for the PM-D power module in a SIRIUS ET 200S motor-starter station. It supplies the fixed mechanical base and brings the U1 and U2 potential-group feeds into the removable PM-D electronics.

        Incoming 24 V DC conductors land on 3RK1903-0AA00, where the terminal paths carry the two potentials to the PM-D interface. The 10 A terminal rating applies to this shared infeed path rather than to an individual motor-starter output.

        Because the field wiring stays on 3RK1903-0AA00 when the PM-D is removed, module exchange does not require each infeed conductor to be detached. Correct conductor cross-section, polarity and terminal assignment must still be checked before the potential group is energized.
        Alternative Names
        3RK19030AA00 TM-P15 S27-01 3RK1903-0AA00 Siemens 3RK1903 0AA00 3RK 1903-0AA00 ET 200S Terminal Module 3RK1903-0AA00 Siemens 3RK19030AA00 3RK1903-OAA00 PM-D Base 3RK1903-0AA00
        Technical notes
        Siemens 3RK1903-0AA00 is the TM-P15 S27-01 base for a PM-D module; verify U1/U2 polarity and conductor size before energizing.
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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
        Is Siemens 3RK1903-0AA00 the PM-D electronic module?
        No. Siemens 3RK1903-0AA00 is the fixed TM-P15 S27-01 terminal base onto which the PM-D electronic module plugs.
        What do U1 and U2 represent on 3RK1903-0AA00?
        U1 and U2 are the two documented potential-group infeed paths carried by 3RK1903-0AA00 to the installed PM-D module.
        Can the PM-D be removed without disconnecting wires from Siemens 3RK1903-0AA00?
        Yes. The incoming conductors remain secured on Siemens 3RK1903-0AA00 while the removable PM-D is withdrawn.
        Does the 10 A value on 3RK1903-0AA00 apply to each downstream motor starter?
        No. The 10 A value describes the shared 3RK1903-0AA00 terminal infeed path, not an individual starter output.
        Which wire range should be checked before landing a ferruled flexible conductor on Siemens 3RK1903-0AA00?
        A ferruled flexible conductor for Siemens 3RK1903-0AA00 must remain within the documented 0.14 to 1.5 mm² range.

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