Industrial Power Distribution Solution – AB 1769-PB4 | CompactLogix 1769 Series
Where This Product Is Used
The Allen-Bradley 1769-PB4 is a 24VDC input power supply module purpose-built for the CompactLogix 1769 I/O system. It is deployed wherever a compact, rail-mounted control architecture must deliver stable, regulated power to a bank of 1769 I/O modules without relying on the main controller’s internal bus supply. Typical installation environments include:
- Automotive assembly lines – powering distributed I/O banks on body-in-white welding cells and paint-shop conveyor controls
- Food & beverage packaging – supplying 24VDC logic power to filling, capping, and labeling machine I/O racks in washdown-adjacent panels
- Water & wastewater treatment – energising remote I/O segments in pump-station MCC panels where panel space is at a premium
- Oil & gas upstream/midstream – providing isolated power segments in wellhead RTU enclosures and pipeline SCADA panels
- Pharmaceutical manufacturing – supporting validated control panels where each I/O bank must have a dedicated, auditable power source
- Material handling & logistics – driving sorter and conveyor I/O nodes in high-cycle distribution-centre automation
Wherever engineers need to extend a CompactLogix system beyond the native bus-power budget, or segment power domains for fault isolation, the 1769-PB4 is the specified solution.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 1769-PB4 |
| Product Family | Allen-Bradley CompactLogix 1769 I/O |
| Module Type | Power Supply / Bus Expansion Module |
| Input Voltage | 24V DC (nominal) |
| Output Current | 4 A (to 1769 I/O bus) |
| Mounting | DIN rail (35 mm) or panel mount via 1769 system rail |
| Communication | 1769 backplane bus (right-side connection) |
| Operating Temperature | 0 °C to 60 °C (32 °F to 140 °F) |
| Storage Temperature | -40 °C to 85 °C |
| Relative Humidity | 5 % to 95 % (non-condensing) |
| Enclosure Rating | Open type – install in suitable enclosure |
| Agency Certifications | UL, CE, C-Tick (verify current listing with Rockwell) |
| Weight | Approx. 1.2 kg (as shipped) |
Note: Always verify specifications against the official Rockwell Automation 1769-PB4 product page and installation instructions before engineering design-in.
Why Engineers Specify This Model
- Dedicated bus power budget – Adds 4 A of 24VDC bus current, allowing engineers to expand I/O banks beyond the controller’s native supply limit without redesigning the entire panel.
- Power domain segmentation – Isolates downstream I/O modules from upstream faults, improving system availability and simplifying fault diagnostics.
- Compact form factor – Slots directly into the 1769 system rail with no additional wiring harness, minimising panel footprint and assembly time.
- Proven field reliability – The 1769 platform has accumulated millions of operating hours across global process and discrete manufacturing sites.
- Simplified sparing – A single module type covers a wide range of I/O expansion scenarios, reducing spare-parts inventory complexity.
- Seamless integration – Works transparently with Studio 5000 / RSLogix 5000 project configurations; no additional software licensing required for the power module itself.
Complete System Bill of Materials
The 1769-PB4 is typically ordered alongside the following components to build a complete CompactLogix I/O expansion segment:
- 1769-L3x / 1769-L2x – CompactLogix controller (host of the 1769 I/O system)
- 1769-ECR / 1769-ECL – Right-end cap or left-end cap to terminate the I/O bank
- 1769-IQ16 / 1769-OB16 – Digital input / output modules (16-point, 24VDC)
- 1769-IF4 / 1769-OF4 – Analog input / output modules (4-channel)
- 1769-SDN – DeviceNet scanner module (if DeviceNet field devices are present)
- 1769-ARM – Address reservation module (for slot reservation in mixed I/O banks)
- 1492-CABLE series – Pre-wired I/O cables for rapid field termination
Contact [email protected] to request a complete BOM review or cross-reference check for your application.
Compliance & Industry Standards
- UL Listed – Evaluated to applicable UL standards for industrial control equipment
- CE Marked – Compliant with EU Low Voltage Directive and EMC Directive
- RoHS – Manufactured in compliance with EU RoHS Directive (verify revision with Rockwell)
- IEC 61131-2 – Programmable controller hardware standard (applicable to the 1769 platform)
- ATEX / IECEx – Not rated for hazardous locations; install in a suitable purged or pressurised enclosure if required by site classification
Quality Assurance & Sourcing
Konmask.com specialises in sourcing Allen-Bradley / Rockwell Automation components for B2B industrial buyers worldwide. Our quality process includes:
- Authorised & secondary-market sourcing – We work with verified supply-chain partners and clearly disclose product condition (new, surplus-new, or refurbished) in every quotation.
- Visual & functional inspection – Each unit is inspected for label integrity, connector condition, and physical damage before dispatch.
- Traceability documentation – Lot codes, date codes, and supplier chain-of-custody records are retained and available on request.
- Secure anti-static packaging – Modules are shipped in ESD-safe bags with foam cushioning to prevent transit damage.
- 30-day return policy – If a module arrives DOA or misrepresented, we arrange replacement or full refund.
How to Source This Part
- Submit an enquiry – Email [email protected] or call +0086 19859288691 with your required quantity, delivery timeline, and destination country.
- Receive a quotation – We respond within 1 business day with pricing, lead time, and stock condition details.
- Confirm & pay – Orders are confirmed upon receipt of a purchase order or advance payment (T/T, PayPal, or other agreed method).
- Dispatch & tracking – Units are dispatched via DHL, FedEx, or UPS Express with full tracking provided.
- After-sales support – Our technical team is available to assist with installation queries and warranty claims.
Application-Specific FAQ
- Q: Can the 1769-PB4 be used with a 1769-L30ER or 1769-L33ER controller?
- A: Yes. The 1769-PB4 is compatible with all CompactLogix controllers that use the 1769 I/O system rail. It extends the bus power budget for I/O modules connected to the right of the module.
- Q: How many 1769-PB4 modules can I install in a single I/O bank?
- A: Rockwell Automation specifies the maximum number of power supply modules per bank in the 1769 system installation instructions. Consult publication 1769-IN031 or the system design guide for your specific controller model.
- Q: What is the difference between the 1769-PB4 and the 1769-PA4?
- A: The 1769-PB4 accepts 24V DC input, while the 1769-PA4 accepts 120/240V AC input. Both deliver 4 A to the 1769 I/O bus. Selection depends on the available panel supply voltage.
- Q: Is the 1769-PB4 still in production / actively sold by Rockwell?
- A: Product lifecycle status changes over time. Contact Konmask.com for current availability, and always verify active/discontinued status with Rockwell Automation’s official product lifecycle page.
- Q: Can Konmask.com supply a test report or certificate of conformance?
- A: Yes. A certificate of conformance and available traceability documentation can be provided upon request at the time of quotation.
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