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      Allen-Bradley 1746-A7
      Allen-Bradley 1746-A7

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      7-slot modular chassis

      1746-A7

      Spare Part Number

      PN1746-A7/A, 1746-A7/B

      Product Information:

      A Series B SLC 500 modular chassis providing 7 slots for the power supply, processor/adapter and I/O modules. The backplane distributes 5 VDC and 24 VDC power and carries SLC communication signals; installation must preserve chassis addressing, power-supply loading, grounding and module order.

      Product image is representative; revision or series may vary. Contact us to request a specific version.
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      • One-year warranty
      • Global shipping
      • Exact-model verification
      WhatsApp: +86 180 2077 6792 Email parts team
      01


      Model Verified

      Model, revision and nameplate reviewed
      02


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      You will get an email confirming that we have received your enquiry
      03


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      One of our team will be in touch to confirm your part(s) specification and condition
      04


      Your quote

      You will receive a comprehensive quote tailored to your specific needs
        • PRODUCT OVERVIEW

          What is this product?

          A Series B SLC 500 modular chassis providing 7 slots for the power supply, processor/adapter and I/O modules. The backplane distributes 5 VDC and 24 VDC power and carries SLC communication signals; installation must preserve chassis addressing, power-supply loading, grounding and module order. Selection must preserve the complete label identity, connected-equipment compatibility and manufacturer installation limits.

          Source boundary

          Manufacturer reference: official documentation for SLC 500 modular chassis.
        • APPLICATIONS

          Where it may be used

          Use this 7-slot modular chassis only where its documented configuration, interfaces and installation limits match the existing SLC 500 modular chassis arrangement.

          7-slot SLC node

          Holds a compact SLC 500 controller or remote-I/O arrangement with 7 available module positions.

          Expanded I/O rack

          Maintains the original slot sequence and backplane connections during a chassis replacement.

          Expanded-panel retrofit

          Uses the official mounting envelope to check hole pattern, depth and service clearance.

          Seven-slot grounded rack

          Restores the chassis bond and power-distribution path after inspecting every backplane connector.
      Technical specifications for

      1746-A7

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC Systems
      • Spare Part Number:
        1746-A7/A, 1746-A7/B
      • Chassis capacity:
        7 slots
      • Series:
        Series B
      • Backplane 5 VDC current:
        10 A maximum
      • Backplane 24 VDC current:
        2.88 A maximum
      • Mounting:
        Panel mount
      • Operating temperature:
        0 to +60 °C
      • Storage temperature:
        -40 to +85 °C
      • Relative humidity:
        5 to 95% noncondensing
      • Stock:
        26
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      • 01

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      • 02

        Provide the details

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      • 03

        Review the quotation

        Receive price, currency, condition, availability, warranty, lead time, shipping terms and quotation validity in writing.
      • 04

        Confirm the order

        Accept the quotation in writing and complete the required payment before shipment.
      • 05

        Pay by bank transfer

        Pay the full invoiced amount by bank wire in RMB/CNY, GBP, EUR or USD using the official invoice details.
      • 06

        Verify and dispatch

        The part is inspected, tested and securely packed before dispatch, with tracking provided after release.
      Request a Verified Quote
      BUYER INFORMATION

      Product condition level information

      Commercial details are confirmed in writing before payment.
      • 01

        Factory Sealed

        Unused product with the original factory seal intact; packaging age or storage marks may still be present.

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      • 02

        Original Pack

        Unused product in original manufacturer packaging that was not originally factory sealed.

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      • 03

        Factory New

        New and current product sourced through the manufacturer or authorized supply channel when expressly confirmed in the quotation.

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      Revisions

      Revision Part #

      Also known as

      1746-A7/A
      1746-A7 Ser A, Series A, Rev A
      Get Parts Quote
      1746-A7/B
      1746-A7 Ser B, Series B, Rev B
      Get Parts Quote

      Alternative Names

      1746 A7 SLC 500 1746-A7 chassis 7-slot SLC chassis 1746-A7 Allen-Bradley 1746-A7 Series B 1746A7

      Information

      Overview Manuals Power Budget Chassis Layout Grounding Bond

      Features:

      • The 7-slot SLC 500 backplane supports a modular processor/adapter and I/O arrangement in one grounded chassis.
      • Documented 5 VDC and 24 VDC backplane limits provide the basis for power-supply and module-loading checks.
      • Series B mechanical and grounding details are covered by Rockwell's multilingual chassis installation instructions.
      A Series B SLC 500 modular chassis providing 7 slots for the power supply, processor/adapter and I/O modules. The backplane distributes 5 VDC and 24 VDC power and carries SLC communication signals; installation must preserve chassis addressing, power-supply loading, grounding and module order. Selection must preserve the complete label identity, connected-equipment compatibility and manufacturer installation limits.

      Manufacturer reference: official SLC 500 modular chassis documentation.

      Moore Automated supports exact-item verification and spare-part enquiries for 1746-A7.
      Allen-Bradley 1746-A7 official manufacturer document excerpt (PDF), 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.

      Total every installed module's 5 VDC and 24 VDC demand and keep both sums within the chassis power-supply limits.

      Photograph and record the processor, adapter and I/O position sequence before removal so addressing is not shifted during rebuild.

      Follow the official mounting dimensions, enclosure spacing and protective-earth bonding instructions before applying power.

      Technical notes

      A Series B SLC 500 modular chassis providing 7 slots for the power supply, processor/adapter and I/O modules. The backplane distributes 5 VDC and 24 VDC power and carries SLC communication signals; installation must preserve chassis addressing, power-supply loading, grounding and module order. Confirm 1746-A7, Series B and the 7-slot chassis size on the label. Record the power supply, processor or adapter, every module position and any chassis-interconnect arrangement before removal. Remove power, label field wiring and module positions, bond the chassis to protective earth, observe Rockwell mounting clearances and rebuild the exact slot order. Verify backplane loading and controller I/O addressing before restoring machine operation.

      Exact Item Configuration

      Confirm 1746-A7, Series B and the 7-slot chassis size on the label. Record the power supply, processor or adapter, every module position and any chassis-interconnect arrangement before removal.

      Quotation Input Checklist

      For quotation, provide quantity, the complete 1746-A7 label, clear nameplate and connector photographs, connected equipment, receiving country and required delivery date. Include project, firmware or hardware-revision records where applicable so Moore Automated can match and quote the exact item.

      Customs & Shipping Data

      • Packed shipping dimensions
        Confirmed after final packing
        28.2 x 17.1 x 14.5 cm
      • Packed shipping weight
        Confirmed after final packing
        Approx. 1.1 kg
      • HS / customs code
        Not officially confirmed
        Verify for the destination before shipment.
      • Country of origin
        United States of America
        Rockwell-listed; verify the unit label.
      • Ships from
        Xiamen, Fujian, China
        Dispatch location is confirmed in the written quotation.
      • Customs documents
        Confirmed for the destination
        Available document scope is stated in the written quotation.
      PRODUCT & ORDER FAQS

      Questions buyers ask about 1746-A7

      • How can I confirm that I need the exact 1746-A7 configuration?

        Confirm 1746-A7, Series B and the 7-slot chassis size on the label. Record the power supply, processor or adapter, every module position and any chassis-interconnect arrangement before removal.

      • Can I use 1746-A7 with my existing equipment?

        The replacement must accept the same SLC 500 power supply and module lineup without exceeding either backplane current limit. 1746-A7 has 7 slots; changing chassis size can alter addressing, cable routing and enclosure clearances.

      • Can you deliver my 1746-A7 door to door by DHL or FedEx?

        Yes. DHL, FedEx, UPS or a nominated forwarder can be arranged. Provide the destination, postcode, preferred courier and any account details so the route, transit time and charge can be confirmed.

      • Which two ratings should I compare before selecting 1746-A7?

        Compare chassis capacity (7 slots) and series (Series B). Both values must fit the connected hardware and the original design record; matching only the physical appearance is insufficient.

      • What should I check before installing 1746-A7?

        Remove power, label field wiring and module positions, bond the chassis to protective earth, observe Rockwell mounting clearances and rebuild the exact slot order. Verify backplane loading and controller I/O addressing before restoring machine operation.

      • Can I buy a new original 1746-A7 with a one-year warranty?

        Yes. The quotation can specify a new original 1746-A7 with a one-year Moore Automated warranty. Current label and condition photographs are checked before dispatch so the supplied identity is recorded in writing.

      • How do backplane 5 vdc current and backplane 24 vdc current affect my 1746-A7 replacement?

        For this item, backplane 5 vdc current is 10 A maximum, while backplane 24 vdc current is 2.88 A maximum. Verify both against the current system configuration before approving a replacement.

      • What evidence can I request to verify the 1746-A7 held in stock?

        Request a current photograph of the complete label and the relevant connector or terminal face. The image should show the 1746-A7 label, Series B marking, 7-slot layout and undamaged backplane connectors so the quoted unit can be compared with the installed item.
      All FAQ
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            Over 20 years of experience in industrial automation and hard-to-source legacy parts.

          • Product Lifecycle Stage

            Discontinued by OEM / SLC 500 installed-base spare

            Moore Automated supplies high-quality Allen-Bradley replacement modules and spare parts matched to 1746-A7. Exact-item verification and practical sourcing support help reduce equipment downtime.

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          Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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