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Allen-Bradley 1746-P1
Allen-Bradley 1746-P1
Allen-Bradley 1746-P1
Allen-Bradley 1746-P1
Allen-Bradley 1746-P1
Allen-Bradley 1746-P1
Product image is representative; revision or series may vary. Contact us to request a specific version.

1746-P1

SLC 500 Power Supply
In Stock
Ships by Monday, October 5
Fast Shipping Available

Product Describe:

Allen-Bradley 1746-P1 is an SLC 500 chassis power supply with 120/240 V AC input, 2 A at 5 V DC backplane capacity, 0.46 A at 24 V DC backplane capacity and an isolated 24 V DC user output.

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Technical specifications for 1746-P1

Technical specifications for 1746-P1

  • Manufacturer:
    Allen-Bradley
  • Product Category:
    PLC Systems
  • Spare Part Number:
    1746-P1
  • Estimated shipping dimensions:
    6.5x14.3x14cm
  • Weight:
    0.45 kg
  • Tariff Code:
    8537101190
  • Counliy of origin:
    USA
  • Manufacturer:
    Allen-Bradley / Rockwell Automation
  • Product family:
    SLC 500
  • Product type:
    Chassis power supply
  • Line voltage:
    85-132 V AC or 170-265 V AC
  • Line frequency:
    47-63 Hz
  • Typical line power requirement:
    135 VA
  • Inrush current, maximum:
    20 A
  • Internal current capacity at 5 V DC:
    2 A
  • Internal current capacity at 24 V DC:
    0.46 A
  • 24 V DC user-power current capacity:
    200 mA
  • 24 V DC user-power voltage range:
    18-30 V DC
  • User-supplied overcurrent protection, maximum:
    15 A; time-delay type in ungrounded conductors
  • Input-to-backplane isolation:
    1800 V AC RMS for 1 second
  • CPU hold-up time:
    20 ms at full load; 3000 ms at no load
  • Ambient operating temperature:
    0-60 deg C (32-140 deg F)
  • Current-capacity derating:
    5% above 55 deg C (131 deg F)
  • Relative humidity:
    5-95%, noncondensing
  • Field wiring:
    No. 14 AWG (2 mm2)
  • Fuse protection:
    1746-F1 or equivalent 250 V, 3 A fuse
  • User-output construction:
    Isolated, non-fused 24 V DC output
  • Installation document:
    Rockwell Automation publication 1746-IN004B-EN-P

Information

Information

Overview Manuals Common Applications Product Precautions
Allen-Bradley 1746-P1 is an SLC 500 chassis power supply with 120/240 V AC input, 2 A at 5 V DC backplane capacity, 0.46 A at 24 V DC backplane capacity and an isolated 24 V DC user output.
  • Supplies the SLC 500 chassis backplane from an 85-132 V AC or 170-265 V AC source
  • Provides 2 A at 5 V DC and 0.46 A at 24 V DC for backplane loading calculations
  • Provides an isolated, non-fused 200 mA user output at 24 V DC
  • Supports SLC 500 modular power planning with documented load and hold-up limits

Values are limited to Rockwell Automation publications 1746-IN004B-EN-P and 1747-SG001E-EN-E; final chassis loading and site protection remain installation-specific.

Important Notice: Confirm the complete 1746-P1 identity, installed-system configuration, approved isolation and functional acceptance record before service release.

Allen-Bradley 1746-P1 Manuals & Downloads
Allen-Bradley 1746-P1 Technical Reference (PDF)Allen-Bradley 1746-P1 SLC 500 Power Supplies Installation Instructions (PDF)

Important Notice: The first document is the model-specific technical reference. The second is Rockwell Automation's official installation instructions and is a separate document.

SLC 500 chassis power
Feeds the documented 5 V DC and 24 V DC backplane loads in an SLC 500 modular chassis.
24 V DC sensor supply
Provides the isolated 200 mA user output for approved low-current sensors and loads.
Machine-control cabinets
Supports SLC 500 controller and I/O assemblies after both backplane rails are checked.
Legacy SLC 500 maintenance
Provides a documented replacement path where the installed article is confirmed as 1746-P1.
Read the applicable Allen-Bradley installation instructions before work. Verify 1746-P1 and the installed-system configuration before commissioning.
1
Confirm the complete 1746-P1 nameplate and approved SLC 500 chassis position before removal.
2
Isolate incoming AC power and verify an electrically safe state before handling the power supply.
3
Verify that the line source is within 85-132 V AC or 170-265 V AC at 47-63 Hz.
4
Calculate the installed chassis demand against both the 2 A at 5 V DC and 0.46 A at 24 V DC limits.
5
Limit the isolated 24 V DC user output to 200 mA and monitor the circuit where required by the installation instructions.
6
Apply time-delay overcurrent protection in ungrounded conductors and preserve the specified fuse protection.
7
Use an isolation transformer where switching inductive loads can introduce damaging voltage surges.
8
Remove the protective label only after wiring is complete, then verify startup and the controlled I/O response before release.

Technical notes

Technical notes

Rockwell Automation SLC 500 Power Supplies Installation Instructions and SLC 500 System Selection Guide. Values are limited to publications 1746-IN004B-EN-P and 1747-SG001E-EN-E; final chassis loading and site protection remain installation-specific.

FAQS

  • What input supply does 1746-P1 accept?
    Rockwell Automation specifies 85-132 V AC or 170-265 V AC at 47-63 Hz.
  • What backplane current can this power supply provide?
    The documented internal capacities are 2 A at 5 V DC and 0.46 A at 24 V DC; both rails must be checked during power planning.
  • Does the unit provide a 24 V DC user output?
    Yes. The PWR OUT terminals provide an isolated, non-fused 200 mA output with a documented 18-30 V DC range.
  • What is the maximum inrush current?
    The official specification lists 20 A maximum inrush current for 1746-P1.
  • How does ambient temperature affect capacity?
    Operation is specified from 0 to 60 deg C, with current capacity derated by 5% above 55 deg C.
  • What hold-up time is documented?
    Rockwell lists 20 ms at full load and 3000 ms at no load; actual hold-up depends on power-supply loading.
  • Which fuse protection applies?
    The published protection is 1746-F1 or an equivalent 250 V, 3 A fuse; the fuse is intended primarily to guard against fire caused by short circuits.
  • What must be checked before returning the chassis to service?
    Verify identity, AC input, grounding, fuse and overcurrent protection, both backplane loads, user-output load, startup status and controlled I/O response.
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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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