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        • Lifecycle status

          Discontinued / Obsolete by OEM
          Apter Power supports suffix verification, S5 sourcing, documentation, and quotation.

        6ES5420-4UA13

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        1001 reviews ｜ Need a Specific Revision?
        Siemens 6ES5420-4UA13 is a dense SIMATIC S5 420 input module with thirty-two non-isolated 24 V DC channels. Its typical 80 mA backplane demand distinguishes the UA13 execution from the related UA14.
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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 6ES5420-4UA13

        • Manufacturer:
          Siemens
        • Part Number:
          6ES5420-4UA13
        • Product Family:
          Siemens Simatic S5
        • Product Type:
          Digital Input Module
        • Stock:
          1
        • Module designation:
          420
        • I/O function:
          digital input
        • Channel capacity:
          32 inputs
        • Field electrical class:
          24 V DC
        • Isolation:
          Non-isolated
        • System bus current:
          5 V, 80 mA typical
        • Power dissipation:
          7.0 W
        • Permissible unshielded line:
          As documented in the Siemens system manual
        • Enable circuit:
          Front enable input/jumper arrangement
        • Host systems:
          SIMATIC S5-135U / S5-155U
        • Rated input current:
          8.5 mA
        • Typical input delay:
          3 ms
        • Input resistance:
          2.8 kohm typical
        • Weight:
          1.074 lbs (0.487 kg)
        • Tariff Code:
          8537101190
        • 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 Applications Compatibility & Interoperability Configuration Integration

        Features:

        • Collects thirty-two 24 V DC digital inputs in a 20 mm-wide module.
        • Uses the documented non-isolated common-reference arrangement.
        • Draws approximately 80 mA from the 5 V S5 system bus.
        The UA13 suffix is essential because it identifies the 80 mA bus-current execution of the 420 module. UA14 data should not be applied to rack calculations for this article.

        Its high channel density brings thirty-two machine states into the S5 process image without expanding the rack by multiple wider cards.

        Preserve the shared L− reference, front enable and terminal sequence. Test for foreign voltage and confirm the 5 V backplane reserve before seating the module.

        6ES5420-4UA13 is matched by suffix because its bus demand differs from related 420 versions.
        Verified resources for Siemens 6ES5420-4UA13: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.
        • Concentrate a large bank of 24 V proximity or limit-switch signals in one S5 slot.
        • Maintain dense binary status acquisition in an S5-135U production line.
        • Replace the UA13 execution without changing the legacy process-image layout.
        • Use the module only in S5-135U or S5-155U hardware that supports the documented 420 board.
        • Match the 42-pin front wiring and shared reference rather than substituting another suffix by appearance.
        • Retain the same process-image addresses so the control program reads the intended thirty-two points.
        • Document which input bit corresponds to every terminal before disconnecting the field plug.
        • Keep the front enable condition represented in the machine startup logic.
        • Verify forced or simulated inputs against the offline S5 program cross-reference.
        • Connect the common L− reference exactly as shown for the non-isolated input network.
        • Include the UA13 80 mA bus requirement in the rack power total.
        • Arrange thirty-two conductors so the slim module connector is not subjected to side load.
        Description
        6ES5420-4UA13 is the UA13 version of the S5 420 high-density digital input board. Thirty-two 24 V DC points are arranged within a 20 mm module width and share the documented non-isolated reference scheme, providing a compact way to collect a large number of machine states in S5-135U and S5-155U racks.

        At the signal level, the module presents a typical 3 ms delay, approximately 8.5 mA rated input current and 2.8 kΩ typical resistance. On the system side it draws about 80 mA from the 5 V backplane and dissipates 7 W, figures that distinguish this suffix during rack power and heat calculations.

        The common reference makes wiring discipline especially important because an unintended external potential can affect multiple points rather than one isolated channel. Terminal grouping, L− reference, enable circuit, address allocation and bus-power margin should all be documented before replacement, with the field connector tested for shorts before insertion.
        Alternative Names
        6ES5420-4UA13 6ES5420 4UA13 6ES54204UA13 Siemens 6ES5420-4UA13 6ES5420-4UA13 SIMATIC S5-135U/155U Digital I/O Siemens Digital Input Module 6ES5420-4UA13 Digital Input Module
        Technical notes
        6ES5420-4UA13 has non-isolated inputs sharing a reference; introducing a foreign potential on one conductor can propagate through the common network and affect an entire input group.
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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
        Which backplane figure distinguishes Siemens 6ES5420-4UA13?
        The UA13 execution draws approximately 80 mA from the 5 V system bus.
        Why do Siemens 6ES5420-4UA13 inputs share special wiring precautions?
        They are non-isolated and use a common reference, so an unintended potential can influence more than one channel.
        What logic delay should be expected from Siemens 6ES5420-4UA13?
        The official technical data gives a typical input delay of 3 ms.
        How much panel density does Siemens 6ES5420-4UA13 provide?
        It accommodates thirty-two digital inputs in a 20 mm module width.
        What resistance characterizes a Siemens 6ES5420-4UA13 input?
        The documented typical input resistance is 2.8 kΩ at the specified 24 V DC field class.
        Why must Siemens 6ES5420-4UA13 not be confused with 6ES5420-4UA14?
        The related suffix has different 5 V bus demand, so rack power and spare records must retain the exact article number.

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