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PRODUCT DESCRIPTION
6ES7405-0DA01-0AA0 DC power supply module
Siemens 6ES7405-0DA01-0AA0 is a PS 405 4A power supply for the SIMATIC S7-400 rack. It accepts nominal 24, 48 or 60 V DC and supplies the rack backplane with 5 V and 24 V power for the installed controller and I/O modules.
The continuous input range is 19.2 to 72 V DC. Rated backplane currents are 4 A on the 5 V rail and 0.5 A on the 24 V rail, with more than 20 ms of interruption buffering. Front indicators report internal faults, battery conditions and output status; an optional 3.6 V lithium battery provides backup when the primary supply is off.
The continuous input range is 19.2 to 72 V DC. Rated backplane currents are 4 A on the 5 V rail and 0.5 A on the 24 V rail, with more than 20 ms of interruption buffering. Front indicators report internal faults, battery conditions and output status; an optional 3.6 V lithium battery provides backup when the primary supply is off.
BEFORE YOU BUY
Confirm the complete dc power supply module
ACTUAL APPLICATIONS
Application context for 6ES7405-0DA01-0AA0
6ES7405-0DA01-0AA0 is used in the following application areas within compatible SIMATIC S7-400 PS 405 configurations.
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01 · POWER GENERATION
Thermal Electricity and Hydroelectric Power Generation
Combined-Cycle Power GenerationPumped-Storage Hydropower -
02 · CHEMICAL & PETROCHEMICAL
Basic Chemicals and Specialty Chemical Manufacturing
Petrochemical ManufacturingFine Chemical Manufacturing -
03 · WATER & WASTEWATER
Municipal Water Supply and Industrial Wastewater Treatment
Drinking Water TreatmentWastewater Resource Recovery
Technical specifications for 6ES7405-0DA01-0AA0
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Product Model6ES7405-0DA01-0AA0
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Product ParametersDC power supply module
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In stock1 unit
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ManufacturerSiemens
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Rated DC input24 / 48 / 60 V DC
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Continuous input range19.2 to 72 V DC
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Dynamic input range18.5 to 75.5 V DC
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Input current at rated supplies2 / 1 / 0.8 A
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Backplane output voltages5.1 V DC and 24 V DC
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Backplane output current4 A at 5 V; 0.5 A at 24 V
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Power interruption bufferingMore than 20 ms at 1 s repetition
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Power consumption at 24 V48 W
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Power loss16 W
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Power-off backup current100 microA maximum
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Optional backup batteryOne lithium AA, 3.6 V / 2.3 Ah
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Input conductor cross-section3 x 1.5 mm²
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Cable diameter3 to 9 mm
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Protection classClass I with protective conductor
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Insulation test voltage700 V DC secondary to PE; 2200 V DC primary to secondary/PE
View all additional
Alternative Names
6ES7405-0DA01-0AA0
SIMATIC PS 405 4A
S7-400 DC power supply PS 405
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM INTEGRATION
Integrate 6ES7405-0DA01-0AA0 dc power supply module
Size the S7-400 backplane load against both output rails: 4 A at 5 V and 0.5 A at 24 V. A load acceptable on one rail can still exceed the other rail. Connect the DC source within the continuous input window and retain the protective earth connection required by Class I construction.
The front standby switch does not disconnect the incoming supply. The FMR button acknowledges failure messages, while BAF and BATTF indicators identify backup-related faults. The battery-monitoring switch must match the actual battery arrangement so that commissioning does not leave an unintended battery alarm.
The continuous input range is 19.2 to 72 V DC. Rated backplane currents are 4 A on the 5 V rail and 0.5 A on the 24 V rail, with more than 20 ms of interruption buffering. Front indicators report internal faults, battery conditions and output status; an optional 3.6 V lithium battery provides backup when the primary supply is off.
Features:
- Separate 5 V and 24 V load budgets
- 19.2 to 72 V DC continuous supply
- Optional 3.6 V battery backup
The 6ES7405-0DA01-0AA0 dc power supply module requires appropriate configuration before system integration and commissioning.
INTERCHANGEABILITY
Verify 6ES7405-0DA01-0AA0 dc power supply module
Record the complete -0DA01 order number and verify the rack load before replacement. The 25 mm module width and the three-pin power connector must fit the existing rack and cable route. Inspect the incoming DC wiring and protective conductor while the external supply is isolated.
After energizing, inspect both DC output LEDs and the fault indicators, then check the CPU backup condition. If an overload causes cycling, remove the overload before resetting; repeated replacement without correcting excessive backplane demand does not resolve the underlying fault.
They indicate battery-related conditions that can affect backup readiness even when the output supply LEDs are lit.
Features:
- External isolation before connector removal
- FMR and battery-indication verification
- Output-rail overload assessment
The 6ES7405-0DA01-0AA0 dc power supply module requires replacement verification against the complete installed configuration and current manufacturer documentation.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The linked files are Amikong-hosted reference documents. Match their product identity and scope to the supplied assembly, and consult the applicable manufacturer instructions before use. Accessories and additional documents are included only when expressly listed in the quotation.Features:
- Verify document identity before procurement or installation
- Match the complete order to the manufacturer document scope
- Accessories are supplied only when listed in the quotation
Documentation for the 6ES7405-0DA01-0AA0 dc power supply module must be checked for document applicability before installation or commissioning.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size2.5 x 29.0 x 21.7 cm
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Shipping weight0.76 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8504409090
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OriginGermany
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
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Condition checked
Label and appearance -
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Tracking supplied
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Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ES7405-0DA01-0AA0
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Can a 60 V DC source supply the PS 405 4A?
Yes. The nominal inputs are 24, 48 and 60 V DC, and the continuous permissible range is 19.2 to 72 V DC. -
Does the PS 405 standby switch isolate its input connector?
No. The standby switch does not cut off the incoming supply; isolate the external DC source before work. -
How should the two S7-400 backplane loads be calculated?
Check them independently against 4 A on the 5 V rail and 0.5 A on the 24 V rail. -
How long can this module bridge a short supply interruption?
The specified buffering exceeds 20 ms at a repetition interval of one second. -
Which battery fits the documented backup arrangement?
Siemens specifies one lithium AA battery rated 3.6 V and 2.3 Ah for the optional backup function. -
Why should BAF and BATTF be checked after replacement?
They indicate battery-related conditions that can affect backup readiness even when the output supply LEDs are lit. -
What should an MRO request identify for this older PS 405?
Include 6ES7405-0DA01-0AA0, the rack configuration, required battery arrangement and whether the power connector must be supplied. -
Can the quotation include the battery and connector with the supply?
Ask for these items to be listed individually; their inclusion is established by the written quotation.
READY TO VERIFY YOUR PART?
Get a 6ES7405-0DA01-0AA0 quote with price, lead time and revision check.
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6ES7405-0DA01-0AA0DC power supply moduleManufacturer: SiemensView Details
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