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      Siemens 6ES7505-0RB00-0AB0
      · Product image is representative; revision or series may vary. Contact us to request a specific version.
      Ships by Saturday, September 19

      6ES7505-0RB00-0AB0

      Buffered System Power Supply

      Require for Quote:

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          PRODUCT DESCRIPTION

          6ES7505-0RB00-0AB0 protects retained CPU data

          Siemens 6ES7505-0RB00-0AB0 is the SIMATIC S7-1500 PS 60W 24/48/60V DC HF system power supply with buffer functionality. It supplies the backplane bus with up to 60 W and supports retentive storage of the data work memory of an eligible CPU when power is removed.

          Extended retentivity requires the compatible CPU hardware, CPU firmware V2.1.0 or higher and STEP 7 V14 SP1 or higher described in the Siemens system manual. Install the HF supply in slot 0 and apply the specified CPU power and startup settings; this is not a field-load UPS or a supply for a downstream power segment.
          BEFORE YOU BUY

          Check the complete retention configuration

          Send a label photo for review >>
          ACTUAL APPLICATIONS

          Where 6ES7505-0RB00-0AB0 supports data-retentive control

          These engineering scenarios follow the documented buffering and configuration functions. Validate the actual CPU, memory requirement and station wiring before relying on retained data.
          • 01 · POWER-OFF DATA

            Preserve the configured CPU data

            Use the buffered supply in an eligible S7-1500 station when its data work memory must be saved at power-off. Match the CPU article and hardware to the official compatibility table, configure the required retention arrangement and test the application recovery under the approved commissioning procedure.
          • 02 · SEGMENTED PANELS

            Separate HF and downstream supplies

            Keep the HF unit in slot 0 for the first power segment. Where the engineered cabinet needs additional power segments to the right of the CPU, select different suitable system supplies for those segments and check the total module load instead of relocating this buffered unit.
          • 03 · RETROFIT CONTROL

            Guard the retained-memory upgrade

            When upgrading a compatible station for extended retention, verify the engineering version and remove the incompatible CPU supply arrangement. Apply the specified startup compatibility check so that the station configuration cannot silently treat an ordinary unbuffered supply as providing the required HF data-preservation function.

          Technical specifications for 6ES7505-0RB00-0AB0

          • Product Model
            6ES7505-0RB00-0AB0
          • Product Parameters
            Buffered System Power Supply
          • In stock
            1 unit
          • Manufacturer
            Siemens
          • Nominal DC input
            24, 48 or 60 V DC
          • Permissible input-voltage range
            Static 19.2-72 V; dynamic 18.5-75.5 V
          • Backplane infeed power
            60 W
          • Rated input currents
            3 A at 24 V; 1.5 A at 48 V; 1.2 A at 60 V
          • Maximum inrush current
            8 A for up to 1 s
          • Nominal power loss
            12 W
          • Mains-failure stored-energy time
            20 ms
          • Isolation type-test voltage
            2500 V DC
          • Minimum engineering version
            STEP 7 TIA Portal V14 SP1
          • Temperature limits by hardware
            Horizontal max. 60 deg C; vertical max. 40 deg C; min. 0 deg C up to FS02, -25 deg C later
          View all additional
          Ask for Quote

          Alternative Names

          6ES7505-0RB00-0AB0 PS 60W 24/48/60V DC HF S7-1500 PS60W DC HF
          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
          S7-1500 EXTENDED RETENTIVITY

          Engineer the buffered first power segment

          Siemens 6ES7505-0RB00-0AB0 is the SIMATIC S7-1500 PS 60W 24/48/60V DC HF system power supply with buffer functionality. It supplies the backplane bus with up to 60 W and supports retentive storage of the data work memory of an eligible CPU when power is removed.
          Extended retentivity requires the compatible CPU hardware, CPU firmware V2.1.0 or higher and STEP 7 V14 SP1 or higher described in the Siemens system manual. Install the HF supply in slot 0 and apply the specified CPU power and startup settings; this is not a field-load UPS or a supply for a downstream power segment.
          The system manual requires No connection to supply voltage L+ in the CPU configuration and Startup CPU only if compatible for the HF supply. Do not connect the 24 V supply directly to the CPU in this arrangement. Other right-hand power segments require different system supplies.

          Features:

          • CPU firmware V2.1.0 or higher, with listed hardware eligibility
          • STEP 7 V14 SP1 or higher
          • HF supply in slot 0; CPU powered by the specified arrangement
          The Siemens 6ES7505-0RB00-0AB0 requires compatible CPU hardware and the prescribed power and startup settings for system integration and commissioning.
          INTERCHANGEABILITY

          Verify the complete replacement identity before commissioning

          Confirm 6ES7505-0RB00-0AB0 as the HF buffered PS 60W DC unit, not the narrower standard PS 60W DC article. Record the CPU article, hardware function status, firmware, configured retained-memory requirement and slot-zero installation before ordering.
          Make the station safe and isolate power before handling connectors. Preserve the connector coding and strain relief, and verify the CPU supply arrangement against the HF-specific system-manual instructions. Check the 105 mm module width and actual hardware-version temperature limits.
          Recheck No connection to supply voltage L+ and Startup CPU only if compatible after exchange. Validate the intended data retention using the engineered commissioning procedure. The current exact Mall entry is PM300 Active; included connectors and documents must be listed in the quotation.

          Features:

          • Retain the HF identity and CPU compatibility evidence
          • Verify slot-zero placement and power configuration
          • Test intended data recovery before returning to operation
          The Siemens 6ES7505-0RB00-0AB0 buffered system power supply requires replacement verification of CPU eligibility, startup parameters and retained-memory behavior before acceptance.
          DOCUMENTATION STATUS

          Browse the Manuals, Datasheets, Official Documents, Links

          Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.

          Features:

          • Available Siemens document references are confirmed before order
          • Software licensing and project backups remain the customer's responsibility
          • Accessories are supplied only when listed in the quotation
          Documentation for the Siemens 6ES7505-0RB00-0AB0 is supported here by exact official datasheet pages and HF-specific Siemens system-manual extracts; confirm manual availability in the written quotation.

          Also searched as

          6ES7515-2AN03-0AB0 6ES7531-7QD00-0AB0 6ES7522-1BF00-0AB0 6ES7511-1AL03-0AB0 6ES7590-1AF30-0AA0

          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.
          • 01

            Shipping & delivery

            Dispatch
            Eligible stock: same / next day
            Carriers
            DHL, FedEx or UPS
            Ship from
            Xiamen, China
            Packed size
            15.6 × 15.9 × 11.8 cm
            Shipping weight
            Approx. 0.87 kg
          • 02

            Payment & customs

            Payment
            Bank transfer (T/T)
            Currencies
            USD · EUR · GBP · RMB
            Credit cards
            Not accepted
            HS reference
            85044095
            Origin
            Germany
          • 03

            Warranty & returns

            Warranty
            12 months from AMIKON
            Inspection
            Label, condition and packing checks
            Returns
            Prior RMA authorisation required
            Compatibility
            Confirm before order
            OEM warranty
            Does not apply
          Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.

          • Part checked

            Full suffix recorded

          • Condition checked

            Label and appearance

          • Packing checked

            Antistatic protection

          • Tracking supplied

            Established couriers

          • Sandy Lin

            Dedicated account manager · 15+ years
          FREQUENTLY ASKED QUESTIONS

          Questions buyers ask about 6ES7505-0RB00-0AB0

          Direct answers about identity, compatibility, stock, warranty, payment and shipping.

          • Does the buffer keep a machine running through a prolonged supply outage?

            No such runtime is specified. Siemens describes energy for the eligible CPU to save its data area at POWER OFF, while the datasheet lists a 20 ms mains-failure stored-energy time. Do not treat this module as a UPS for actuators, field equipment or prolonged process operation.

          • What determines how much CPU data can actually be retained?

            The system manual ties the maximum retentive area to the data work memory of the specific eligible CPU. Its compatibility table specifies article numbers and hardware function versions, with CPU firmware V2.1.0 or higher. Verify that entry and the application requirement rather than assigning a fixed memory capacity to the power supply.

          • Can an integrator place this HF unit beside an overloaded downstream I/O group?

            No. Siemens restricts this HF supply to slot 0, to the left of the CPU or interface module. Use a different appropriate system supply for additional right-hand power segments and calculate their loads separately. The ordinary segmented-station layout does not override the HF slot restriction.

          • Which existing CPU power connection must be reconsidered during an HF retrofit?

            The HF instructions allow the 24 V DC supply to connect to the system power supply, not directly to the CPU. Configure the CPU with No connection to supply voltage L+. Review the wiring and project together under the approved isolation and commissioning procedure; changing only the hardware does not establish the required arrangement.

          • Why does the project insist on Startup CPU only if compatible?

            The system manual says full CPU data-work-memory retentivity is guaranteed only when the HF supply is inserted. The startup comparison must therefore remain Startup CPU only if compatible; STEP 7 sets it automatically when the HF supply is inserted in the configuration. Do not weaken that check to bypass a mismatched replacement.

          • Why are two expected power-off diagnostic messages absent in this configuration?

            Saving the extended retentive data takes priority. For this HF arrangement, the system manual states that CPUs from firmware V2.1.0 no longer output the Supply voltage fault and Switch position Off diagnostics at POWER OFF. Their absence alone is not evidence that the retention function failed.

          • Does HF buffering introduce a routine battery replacement requirement?

            Siemens describes this power-failure buffering as battery-free and maintenance-free. That does not remove the need to inspect connections, preserve engineering backups and validate the retained data during commissioning. Do not add an unlisted battery kit to the spare-parts requirement.

          • What incoming-current allowance should a panel builder check when several units energize together?

            The exact datasheet specifies an inrush current of no more than 8 A for no more than 1 second per module. Assess the upstream source and protective devices for the actual simultaneous loads, in addition to steady input currents of 3 A at 24 V, 1.5 A at 48 V and 1.2 A at 60 V.
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