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        AB 1746-OB32
        AB 1746-OB32
        AB 1746-OB32
        AB 1746-OB32
        AB 1746-OB32
        AB 1746-OB32
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        • Phone: +86 181 0690 9650
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        • Lifecycle status

          Discontinued
          Discontinued date: 2022-11-24
          Replacement category: Engineering Replacement

        1746-OB32

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Allen-Bradley 1746-OB32 provides thirty-two 5–50 V DC sourcing outputs in two isolated groups for high-density SLC 500 field control.
        In Stock
        Ships by Thursday, October 29
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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.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        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
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 1746-OB32

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1746-OB32
        • Product Family:
          SLC 500
        • Product Type:
          Thirty-Two-Point DC Sourcing Output Module
        • Stock:
          1
        • Outputs:
          32 sourcing outputs
        • Operating Voltage:
          5–50 V DC
        • Isolation from Backplane:
          1500 V AC for 1 minute
        • Connector:
          Keyed 40-pin female connector with crimp contacts
        • Field-Power Wiring:
          Both V DC pins must be connected to the DC power source when current for a common group is expected to exceed 2 A
        • Backplane Current at 5 V DC:
          0.190 A
        • Backplane Current at 24 V DC:
          0 A
        • Signal Delay:
          0.1 ms on; 1.0 ms off, maximum
        • Points per Common:
          16
        • Minimum Load Current:
          1 mA
        • Off-State Leakage Current:
          1 mA maximum
        • Continuous Current per Module:
          8.0 A maximum at 0°C to 60°C
        • Continuous Current per Point:
          0.50 A at 30°C; 0.25 A at 60°C
        • Continuous Current per Common:
          4.0 A maximum at 0°C to 60°C
        • Continuous Current per Common Pin:
          2.0 A maximum at 0°C to 60°C
        • On-State Voltage Drop:
          1.2 V maximum at 0.5 A
        • Surge Current per Point:
          1.0 A for 10 ms
        • Heat Dissipation per Point:
          0.172 W
        • Minimum Heat Dissipation:
          0.95 W
        • Total Heat Dissipation:
          6.45 W
        • Output Group Isolation:
          V DC and DC common connections are isolated between the two output groups
        • Included Connector Kit:
          1746-N3
        • Connector Wire Size:
          22 to 26 AWG
        • Operating Temperature:
          0°C to 60°C
        • Storage Temperature:
          -40°C to 85°C
        • Relative Humidity:
          5% to 95%, non-condensing
        • Operating Shock:
          30 g
        • Weight:
          0.2 kg
        • Tariff Code:
          8538900000
        • Country of origin:
          USA
        • 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 Connector Setup Power Groups Migration Application
        • Thirty-two DC sourcing outputs in two isolated sixteen-point groups
        • 5–50 V DC field operation for compatible sinking loads
        • High-density connector system with parallel field-power terminals for heavier group current

        1746-OB32 is an Allen-Bradley thirty-two-point dc sourcing output module for SLC 500 chassis.

        The module concentrates high-density DC actuation in one chassis slot while separating the field outputs into two independently powered groups.

        Before installation or replacement, verify connector-kit catalog numbers, cable pinout, both group supplies, output mapping, load current, suppression, chassis series, and available power.

        Availability, condition, price, and shipping time for 1746-OB32 are confirmed during quotation.

        Allen-Bradley 1746-OB32 Thirty-Two-Point DC Sourcing Output Module Manuals, Datasheets, Links

        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.

        • Use the documented 32-point connector assemblies or compatible prewired cables
        • Secure both connector groups and verify point numbering before energizing
        • Record cable catalog numbers because the module is not wired with a standard terminal arm
        • Treat outputs 0–15 and 16–31 as independent field-power groups
        • Wire both parallel V DC and common pins when group current exceeds the documented threshold
        • Protect and disconnect each external supply according to the field circuit design
        • Rockwell’s conversion approach maps one 1746-OB32 to two 5069-OB16 modules
        • Rework the output image and controller project for the two-module replacement
        • Validate connector conversion, field commons, fault behavior, and enclosure space before migration
        • High-density 24 V DC actuator control in SLC 500 systems
        • Distributed solenoid and relay-coil switching from two isolated sourcing groups
        • Machine panels requiring thirty-two discrete outputs in one legacy chassis slot
        Description
        1746-OB32 is a thirty-two-point dc sourcing output module for the SLC 500 control platform.

        The module concentrates high-density DC actuation in one chassis slot while separating the field outputs into two independently powered groups.

        Before installation or replacement, verify connector-kit catalog numbers, cable pinout, both group supplies, output mapping, load current, suppression, chassis series, and available power.
        Revisions

        Revision Part #

        Also known as

        1746-OB32 Ser A
        1746-OB32/A, Series A, Rev A
        Get Parts Quote
        1746-OB32 Ser B
        1746-OB32/B, Series B, Rev B
        Get Parts Quote
        1746-OB32 Ser C
        1746-OB32/C, Series C, Rev C
        Get Parts Quote
        1746-OB32 Ser D
        1746-OB32/D, Series D, Rev D
        Get Parts Quote
        Alternative Names
        1746-OB32 1746OB32 AB 1746-OB32 Allen-Bradley 1746-OB32 Rockwell Automation 1746-OB32
        Technical notes
        1746-OB32 uses two connector groups and isolated sourcing sections; confirm cable hardware, paired field-power pins, current sharing, and conversion requirements before replacement.
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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
        Can existing field wiring be transferred directly to a replacement 1746-OB32?
        Not by terminal position alone. Confirm the 32-point connector or prewired cable, pinout, terminal hardware, conductor labels, and group commons before transferring any wiring.
        Why are both V DC and common pins important on 1746-OB32?
        For group current above the documented threshold, both parallel field-power pins must be wired so connector current is shared safely.
        Can the two 1746-OB32 groups use different DC supplies?
        Yes, the groups are isolated from one another, provided each supply remains within limits and its own V DC/common pair is wired correctly.
        What should be checked when several 1746-OB32 points fail together?
        Check the affected group’s field supply, paired V DC/common conductors, connector seating, external protection, and program image before assuming multiple transistor failures.
        How should inductive loads be protected when controlled by 1746-OB32?
        Use suppression suited to the DC load and switching duty. Check the load’s turn-off energy, leakage sensitivity, wiring polarity, and the manufacturer’s suppression guidance before commissioning.
        What must be planned before replacing 1746-OB32 with newer POINT I/O hardware?
        Rockwell’s conversion solution uses two 5069-OB16 modules. Plan the wiring conversion, address mapping, project changes, conversion hardware, cabinet space, and functional testing.
        How can a buyer avoid receiving 1746-OB32 without the required wiring hardware?
        Provide the existing connector or cable catalog number, cable length, terminal interface, group arrangement, required quantity, and whether the current wiring hardware will be reused.

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