Allen-Bradley 1746-OBP16
Allen-Bradley 1746-OBP16
Allen-Bradley 1746-OBP16
Allen-Bradley 1746-OBP16
Allen-Bradley 1746-OBP16
Allen-Bradley 1746-OBP16
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1746-OBP16

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Allen-Bradley 1746-OBP16 is a 16-point high-current 24 V DC sourcing output module with fast turn-off and fused-common indication.
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Technical specifications for 1746-OBP16

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1746-OBP16
  • Product Family:
    SLC 500
  • Product Type:
    Sixteen-Point High-Current DC Sourcing Output Module
  • Stock:
    1
  • Outputs:
    16 sourcing; one common
  • Operating Voltage:
    20.4–26.4 V DC
  • Backplane Current:
    250 mA at 5 V DC; 0 mA at 24 V DC
  • Signal Delay:
    1 ms on; 2 ms off, maximum
  • Off-State Leakage:
    1 mA maximum
  • Minimum Load Current:
    1 mA
  • Current per Point:
    1.5 A at 30 °C; 1 A at 60 °C
  • Current per Module:
    6.4 A from 0–60 °C
  • On-State Voltage Drop:
    1 V maximum at 2 A
  • Surge Current:
    4 A for 10 ms per point; 32 A for 10 ms per module
  • Fuse:
    1746-F8 or Littelfuse 322010
  • Weight:
    0.3 kg
  • Tariff Code:
    8471609000
  • 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 Fuse Service Load Behavior Migration Application
  • Sixteen high-current 24 V DC sourcing outputs on one fused common
  • Fast output turn-off for supported industrial DC loads
  • Blown-fuse indication with replaceable module common fuse

1746-OBP16 is an Allen-Bradley sixteen-point high-current dc sourcing output module for SLC 500 chassis.

The module switches high-current DC loads from a single protected field-power group and provides faster turn-off than standard sourcing output modules.

Before installation or replacement, verify field polarity, combined current, point inrush, fuse type, suppression, temperature derating, terminal wiring, and output-image assignment.

Availability, condition, price, and shipping time for 1746-OBP16 are confirmed during quotation.

Allen-Bradley 1746-OBP16 Sixteen-Point High-Current 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.

  • De-energize field power and identify the faulted load before fuse removal
  • Install only the specified fuse type and rating in the module holder
  • Confirm insulation, polarity, and inrush before restoring the common supply
  • Account for fast turn-off when selecting coil suppression
  • Keep steady and surge currents within both point and module limits
  • Evaluate off-state leakage when switching sensitive solid-state loads
  • Plan two eight-point modules when following the published platform migration path
  • Remap the single sixteen-point image to the destination output structure
  • Revalidate fused-common behavior, field protection, and machine stop response
  • High-current 24 V DC solenoid and contactor-coil control
  • Fast-release DC actuator circuits where output turn-off time matters
  • SLC 500 machine outputs requiring one fused sixteen-point sourcing group
Description
1746-OBP16 is a sixteen-point high-current dc sourcing output module for the SLC 500 control platform.

The module switches high-current DC loads from a single protected field-power group and provides faster turn-off than standard sourcing output modules.

Before installation or replacement, verify field polarity, combined current, point inrush, fuse type, suppression, temperature derating, terminal wiring, and output-image assignment.
Revisions

Revision Part #

Also known as

1746-OBP16 Ser A
1746-OBP16/A, Series A, Rev A
1746-OBP16 Ser B
1746-OBP16/B, Series B, Rev B
1746-OBP16 Ser C
1746-OBP16/C, Series C, Rev C
Alternative Names
1746-OBP16 1746OBP16 AB 1746-OBP16 Allen-Bradley 1746-OBP16 Rockwell Automation 1746-OBP16
Technical notes
1746-OBP16 is a single fused high-current sourcing group; verify field faults, total thermal load, coil suppression, and fast-turn-off behavior 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.
Why does the fuse indicator on 1746-OBP16 illuminate?
It indicates an open common fuse while field power is present. Check for a shorted load, reversed wiring, or excessive inrush before replacing the fuse.
What does fast turn-off change when 1746-OBP16 drives a solenoid?
The load releases quickly, but inductive energy must still be controlled with compatible suppression so the output and adjacent electronics are not overstressed.
Can 1746-OBP16 split its outputs across two independent supplies?
No. Its sixteen points share one fused common field-power section, so use one compatible supply and keep the complete module within combined-current limits.
Why can a replacement fuse open immediately on 1746-OBP16?
A persistent field short, incorrect polarity, damaged suppression device, or load inrush above the allowed duty can retrigger the fault. Isolate loads before retrying.
Can 1746-OBP16 operate a very small electronic load?
Only if the load remains stable with the module’s published leakage and minimum-load behavior. Measure the off-state circuit and add an approved bleeder only when required.
What suppression is appropriate for 1746-OBP16 loads?
Use suppression recommended for the DC coil and compatible with the required release time; a diode slows release, while other networks may switch faster but raise voltage.
What changes when migrating 1746-OBP16 to a newer platform?
Rockwell’s migration mapping uses two eight-point output modules, so field grouping, overcurrent behavior, output addressing, wiring conversion, and fault logic must be redesigned.