PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-P10 is a PLC-5 Power Supply Module designed for 1771 I/O chassis without integral power sources. It accepts a nominal input rating of 125 VDC across an operating range of 97 to 145 VDC. The unit delivers up to 8 A of backplane output current at 5 VDC. It occupies two chassis slots and incorporates a controlled soft-start circuit to manage initial inrush current during startup.
This supply connects into Series A and Series B 1771 I/O chassis. For Series B chassis, users can position the module in any slot except the leftmost location. Two 1771-P10 modules can run in parallel using a 1771-CT cable to provide 16 A total current. Paralleling two units expands available capacity but does not provide fault redundancy.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Category | PLCs |
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| Product Line | PLC 5 |
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| UPC | 612598122967 |
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| Weight | 2.25 lbs (1.02 kg) |
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| Module Type | Power Supply |
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| Nom Input Voltage | 125 Volts DC |
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| Input Voltage Range | 97-145 Volts DC |
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| Max Real Input Power | 51 Watts |
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| Frequency | DC/Rect Sine |
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| Backplane Output Current | 8 Amperes (at 5 Volts DC) |
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| Cabling | 1771-CT |
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| Fuse | 1.5 Amperes, 250 Volts, slow-blow |
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| Location | 1771 Chassis, 2 Slots |
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| Paralleled | -P5, -P10 |
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| Operating Temprerature | 0 to 60 Deg.C (32 to 140 Deg.F) |
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| Storage Temperature | -40 to 85 Deg.C (-40 to Deg.F) |
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TECHNICAL INFORMATION
Features
- Delivers 8 A backplane current at 5 VDC
- Accepts 125 VDC nominal input with 97 to 145 VDC range
- Occupies two slots in 1771 I/O chassis
- Controlled soft-start circuitry controls system turn-on
- Paralleling support using 1771-CT cable yields 16 A combined output
- Front-panel PS Active indicator and integrated power switch
- Protected by a 1.5 A, 250 V slow-blow input fuse
TECHNICAL INFORMATION
Applications
- PLC-5 chassis powering in 125 VDC industrial utility systems
- High-density 1771 I/O assemblies requiring up to 16 A via paralleled supplies
- Expansion racks used with standalone 1772-LS, 1772-LW, and 1772-LX processors
TECHNICAL INFORMATION
Connections / Interfaces
- Bottom terminal strip provides field wiring connection points for DC power input.
- P/S Parallel port connects a 1771-CT cable to join another 1771-P10 module.
- PS Active port reports the operational status of the supply module.
TECHNICAL INFORMATION
Installation Guidelines
- Turn off power to the I/O chassis before inserting or removing the module.
- Align the rear circuit board with the upper and lower chassis guide tracks.
- Apply even pressure to seat the module without forcing the connectors.
- Snap the chassis latch securely over the module faceplate after full insertion.
- Install only in slots other than the leftmost slot on Series B chassis.
TECHNICAL INFORMATION
Configuration Guidelines
- Use part number 1771-CT to link parallel ports when configuring two modules.
- Wire the input power terminals of both units in parallel during dual-supply operation.
- Do not treat parallel configurations as redundant backup power sources.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley Series A and Series B 1771 I/O chassis lacking integral power supplies.
- Compatible with processors without integrated power supplies, such as 1772-LS, 1772-LW, and 1772-LX.
- Incompatible with processors featuring integrated AC supplies, such as 1772-LSP, 1772-LWP, and 1772-LXP.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley Series A and Series B 1771 I/O chassis lacking integral power supplies. Compatible with processors without integrated power supplies, such as 1772-LS, 1772-LW, and 1772-LX. Incompatible with processors featuring integrated AC supplies, such as 1772-LSP, 1772-LWP, and 1772-LXP.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the 1771-P10 module?
The 1771-P10 provides 8 A of regulated 5 VDC power to backplane modules in Allen-Bradley 1771 chassis.
Can two 1771-P10 power supply modules be used for redundancy?
No. Running two 1771-P10 units in parallel provides 16 A total capacity but does not offer redundancy.
Which cable connects two 1771-P10 units in parallel?
The Allen-Bradley 1771-CT paralleling cable connects the P/S Parallel ports between two units.
How many chassis slots does the 1771-P10 occupy?
The 1771-P10 occupies two adjacent slots in an Allen-Bradley 1771 I/O chassis.
What is the market reference price for the 1771-P10?
Observed market reference pricing is approximately $923 USD. This figure is an indicative reference and not a final quotation.
