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        6ES7405-0DA02-0AA0

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Siemens 6ES7405-0DA02-0AA0 is a SIMATIC S7-400 PS 405 power supply module that converts a 24/48/60 V DC source into backplane and auxiliary power for the automation rack.
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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.
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        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
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        Technical specifications for 6ES7405-0DA02-0AA0

        • Manufacturer:
          Siemens
        • Part Number:
          6ES7405-0DA02-0AA0
        • Product Family:
          Siemens Simatic S7-400
        • Product Type:
          SIMATIC S7-400 PS 405 Power Supply Module
        • Stock:
          1
        • Nominal Input Voltages:
          24 V, 48 V or 60 V DC
        • Permissible Input Range:
          18.5 to 75.5 V DC
        • Buffering Time:
          20 ms
        • Input Current at 24 V DC:
          2 A
        • Input Current at 48 V DC:
          1 A
        • Input Current at 60 V DC:
          0.8 A
        • Maximum Inrush Current:
          18 A
        • Backplane Output:
          5 V DC / 4 A
        • Auxiliary Output:
          24 V DC / 0.5 A
        • Output Short-Circuit Protection:
          Electronic
        • Input Power:
          48 W
        • Typical Power Loss:
          16 W
        • Battery Connection:
          Optional
        • Rack Width:
          1 slot
        • Primary/Secondary Isolation:
          Yes
        • Protection Class:
          Class I
        • Certification:
          FM approval
        • Weight:
          2.0834 lbs (0.945 kg)
        • Estimated shipping dimensions:
          23.3x30.1x4.1cm
        • Tariff Code:
          85044095
        • 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 DC Input Path Backplane Rails Buffer and Battery Protection Status

        Features:

        • A wide-range DC input accepts nominal 24 V, 48 V or 60 V sources.
        • The module supplies both the 5 V rack rail and a separate 24 V auxiliary output.
        • Energy storage bridges a brief input interruption before the regulated rails fall.
        Incoming DC passes through input protection and the isolated conversion stage.

        The 5 V rail powers S7-400 backplane electronics while the 24 V output serves its assigned auxiliary circuit.

        Status monitoring and short-circuit protection distinguish source, conversion and load-side conditions.

        The Siemens 6ES7405-0DA02-0AA0 S7-400 PS 405 Power Supply may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Siemens 6ES7405-0DA02-0AA0 S7-400 PS 405 Power Supply 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.

        Adapting three nominal DC systems to one conversion stage

        • Input window: The supply remains inside 18.5 to 75.5 V DC.
        • Source current: Current changes with the selected 24 V, 48 V or 60 V nominal system.
        • Inrush: Upstream protection accounts for the 18 A switch-on peak.
        • Isolation: The primary circuit remains separated from the regulated outputs.

        Dividing converted power between logic and auxiliary loads

        • Five-volt rail: The rack backplane receives up to 4 A for module electronics.
        • Auxiliary rail: The separate 24 V output supplies up to 0.5 A.
        • Load balance: Each rail is evaluated against its own connected demand.
        • Short circuit: Electronic protection limits a fault on the affected output path.

        Keeping brief input events separate from retained-data support

        • Stored energy: The module bridges an input failure for 20 ms.
        • Battery option: The connected battery serves the documented S7-400 backup function.
        • Rack response: Longer source loss causes the regulated rails to leave tolerance.
        • Status path: Power indications distinguish the operating and backup conditions.

        Tracing a rack power problem from source to regulated load

        • Input check: The DC source is verified inside the permitted range.
        • Rail check: Five-volt and 24 V loads are assessed independently.
        • Fault state: Short-circuit protection contains excessive output current.
        • Rack position: The one-slot module feeds the backplane through its assigned connector.
        Description
        Siemens 6ES7405-0DA02-0AA0 is a PS 405 power supply module for the SIMATIC S7-400 automation system. It accepts a nominal 24 V, 48 V or 60 V DC source and generates the regulated voltages required by the rack backplane and the auxiliary 24 V path.

        Across its 18.5 to 75.5 V DC input window, 6ES7405-0DA02-0AA0 draws the current needed to maintain a 5 V DC/4 A backplane rail. A separate 24 V DC/0.5 A output serves the documented auxiliary circuit, keeping that load distinct from the logic supply delivered through the rack.

        Stored energy inside 6ES7405-0DA02-0AA0 bridges an input interruption for 20 ms. The optional battery connection supports the S7-400 backup function, so incoming DC quality, buffering and retained system data are handled by separate parts of the power architecture.

        Primary and secondary circuits in 6ES7405-0DA02-0AA0 are isolated, and both outputs include short-circuit protection. Front status behavior therefore reflects the relationship between the incoming DC source, the two regulated rails and the rack load rather than a single undifferentiated supply state.
        Alternative Names
        6ES74050DA020AA0 6ES7 405-0DA02-0AA0 6ES7405 0DA02 0AA0 Siemens 6ES7405-0DA02-0AA0 6ES7405-0DA02-0AA0 PS 405 PS 405 6ES7405-0DA02-0AA0 6ES 7405 0DA02 0AA0 6ES7405/0DA02/0AA0
        Technical notes
        A 20 ms stored-energy interval lets Siemens 6ES7405-0DA02-0AA0 bridge a brief input interruption before its rack outputs collapse.
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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
        Why can Siemens 6ES7405-0DA02-0AA0 show an input supply but fail to power the rack?
        For Siemens 6ES7405-0DA02-0AA0, measure the DC source under load, inspect backplane seating, check output overloads and separate the 5 V rail from the auxiliary 24 V circuit.
        How does the 20 ms buffer of 6ES7405-0DA02-0AA0 affect a power dip?
        The stored energy in 6ES7405-0DA02-0AA0 holds the regulated outputs during a brief interruption; a longer or deeper event lets the rack rails fall.
        Can Siemens 6ES7405-0DA02-0AA0 use any voltage between 24 V and 60 V DC?
        Siemens 6ES7405-0DA02-0AA0 operates across its documented 18.5 to 75.5 V DC range, but conductor size, source protection and available current must match the actual nominal system.
        What is the difference between the two outputs of 6ES7405-0DA02-0AA0?
        The 5 V DC/4 A output of 6ES7405-0DA02-0AA0 feeds S7-400 backplane electronics, while the 24 V DC/0.5 A output serves the separate auxiliary path.
        Why should the battery circuit be checked separately on Siemens 6ES7405-0DA02-0AA0?
        The battery connection on Siemens 6ES7405-0DA02-0AA0 supports the documented backup function and does not replace the main DC input or either regulated output.

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