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      6ES5451-4UA12

      Digital Output Module
      In Stock
      Ships by Friday, October 9
      Fast Shipping Available

      Product Describe：

      Siemens 6ES5451-4UA12 is a digital output module. It provides thirty-two floating 24 VDC outputs rated at 0.5 A for an installed SIMATIC S5 compact U-periphery station.

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      Technical specifications Information Technical notes FAQ

      Technical specifications for 6ES5451-4UA12

      Technical specifications for 6ES5451-4UA12

      • Manufacturer:
        Siemens
      • Product Category:
        PLC Systems
      • Spare Part Number:
        6ES5451-4UA12
      • Estimated shipping dimensions:
        2x19.5x25.5cm
      • Weight:
        0.46 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Module designation:
        SIMATIC S5 451 digital output module
      • Output count:
        32
      • Output supply:
        24 V DC
      • Rated output current:
        0.5 A per output
      • Electrical arrangement:
        Floating outputs
      • Mechanical version:
        Compact version U
      • Lifecycle:
        Discontinued; deleted without replacement
      • Lifecycle effective date:
        1 October 2002
      • Export classification:
        ECCN N; AL N
      • Packaging quantity:
        1 piece
      • Siemens catalog identifier:
        ST9-E5
      View as PDF Ask for Quote

      Information

      Information

      Overview Manuals Common Applications Product Precautions
      Siemens 6ES5451-4UA12 is a digital output module. It provides thirty-two floating 24 VDC outputs rated at 0.5 A for an installed SIMATIC S5 compact U-periphery station.
      • Provides thirty-two digital outputs
      • Uses floating 24 VDC output circuits
      • Supports 0.5 A per output
      • Fits the documented compact U-periphery position

      6ES5451-4UA12 operates with SIMATIC S5 U-periphery rack, documented 24 VDC load supply and output commons, approved front connector and field wiring, S5 controller project and output address map.

      Engineered applications include Thirty-two-point actuator command, Solenoid and relay output control, SIMATIC S5 machine sequencing, S5 output-module replacement.

      Important Notice: Confirm all thirty-two addresses, group supply conductors, load polarity and protective devices; this discontinued article has no Siemens replacement.

      Siemens 6ES5451-4UA12 Manuals & Downloads
      Siemens 6ES5451-4UA12 Technical Reference (PDF)Siemens 6ES5451-4UA12 Installation & Commissioning Guide (PDF)

      Important Notice: The first document presents exact-model technical and engineering data. The second provides a separate installation, connection, commissioning and acceptance workflow.

      Thirty-two-point actuator command
      Commands a dense bank of discrete field loads.
      Solenoid and relay output control
      Switches documented 24 VDC solenoids or interposing relays.
      SIMATIC S5 machine sequencing
      Executes machine-output logic from the installed S5 controller.
      S5 output-module replacement
      Restores the exact floating-output position without changing addresses.
      Read the applicable Siemens instructions before work. Verify 6ES5451-4UA12 and the installed SIMATIC S5 compact U-periphery system configuration.
      1
      Verify the complete 6ES5451-4UA12 marking and the assigned SIMATIC S5 compact U-periphery system position before work.
      2
      Place the connected thirty-two-point actuator command process in the approved maintenance state.
      3
      Isolate all applicable power and thirty-two 24 VDC output circuits field energy before disconnection.
      4
      Record every connector, conductor, address, jumper and project identity before removal.
      5
      Use ESD controls and protect keyed interfaces, exposed contacts and electronic assemblies.
      6
      Confirm the installed SIMATIC S5 U-periphery rack and documented 24 VDC load supply and output commons against the approved system record.
      7
      Restore power in a controlled sequence and review module, rack and host diagnostics.
      8
      Prove the intended solenoid and relay output control function and retain the final acceptance result.

      Technical notes

      Technical notes

      Official source: Siemens SIMATIC S5 U Periphery Instructions and the exact Industry Mall article record. Publication: C79000-B8576-C300-06 and the exact MLFB product record.

      FAQS

      • What output function identifies Siemens 6ES5451-4UA12?
        It is the SIMATIC S5 451 compact-U digital output module with thirty-two floating outputs.
      • Which load supply and channel rating apply to 6ES5451-4UA12?
        Use the documented 24 VDC load supply and keep each output within the published 0.5 A rating.
      • Why must all thirty-two addresses be recorded before removing 6ES5451-4UA12?
        The module represents a complete 32-point bank; preserving the slot and point map prevents output-address shifts.
      • How should floating circuits be handled on 6ES5451-4UA12?
        Retain the documented group supplies, commons and isolation boundaries instead of joining circuits during rewiring.
      • Which mechanical position is intended for 6ES5451-4UA12?
        Install it only in the approved SIMATIC S5 compact U-periphery position with the recorded front connector.
      • What does the lifecycle record mean for 6ES5451-4UA12 service?
        Siemens lists the article as discontinued and deleted without replacement, so like-for-like identity and project preservation are essential.
      • Can 6ES5451-4UA12 be replaced by a similar 451 suffix automatically?
        No. Compare the full MLFB, output count, floating arrangement, voltage, current and connector assignment before any substitution.
      • What commissioning test is required for 6ES5451-4UA12?
        Energize the load groups under control and exercise every addressed output while confirming the correct field load and controller indication.
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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