Allen-Bradley 1769-PB4 DC 4A/2A Power Supply – CompactLogix 1769 Series
When a power supply fails on a CompactLogix system, the entire production line goes dark. Conveyors stop, robotic arms freeze mid-cycle, and every second of downtime translates directly into lost output and costly emergency calls. The Allen-Bradley 1769-PB4 is the dedicated DC power supply engineered to prevent exactly that scenario — delivering stable, regulated power to your 1769 CompactLogix I/O modules so your control system never misses a beat.
Within the 1769 Compact I/O family, the 1769-PB4 occupies the role of the workhorse DC power supply, providing a 4A output at 5VDC and a 2A output at 24VDC to support mixed digital and analog I/O configurations. Backed by Rockwell Automation’s global installed base of CompactLogix systems — one of the most widely deployed small-to-mid-range PLC platforms in manufacturing — the 1769-PB4 is a mission-critical component trusted across automotive, food & beverage, material handling, and process industries worldwide.
Technical Specifications
- Part Number: 1769-PB4
- Series: Allen-Bradley CompactLogix 1769 Compact I/O
- Output Current (5VDC Bus): 4A
- Output Current (24VDC Bus): 2A
- Input Voltage: 24VDC nominal
- Mounting: DIN rail or panel mount, right-side or left-side of controller
- Weight: Approx. 600 g
- Certifications: UL, CE (refer to official Rockwell documentation for full certification list)
- Compatible Platform: CompactLogix 1769 Compact I/O system
Note: Always verify specifications against the official Allen-Bradley 1769-PB4 product datasheet before engineering design-in.
Key Features & Benefits
- Dual-voltage output — simultaneously powers both 5VDC logic and 24VDC field-side I/O modules from a single unit, reducing panel wiring complexity.
- Compact form factor — slots directly into the 1769 I/O bank without additional mounting hardware, preserving valuable panel space.
- Stable regulated output — maintains consistent voltage under varying load conditions, protecting sensitive I/O modules from power fluctuations.
- Hot-swap compatible design — supports the modular architecture of the CompactLogix platform for easier maintenance and expansion.
- Proven Rockwell Automation reliability — manufactured to the same quality standards as the broader Allen-Bradley control product line, with global spare-parts availability.
- Drop-in replacement — fully backward-compatible within the 1769 Compact I/O ecosystem, minimizing re-engineering effort during maintenance.
Industry & Equipment Applications
- Automotive manufacturing: Body welding lines, paint shop conveyors, and assembly robot controllers powered by CompactLogix systems.
- Food & beverage: Packaging lines, filling machines, and pasteurization control panels requiring hygienic, reliable I/O power.
- Material handling & logistics: Sortation systems, palletizers, and automated storage/retrieval systems (AS/RS).
- Water & wastewater treatment: Pump station control panels and SCADA-integrated remote I/O racks.
- Oil & gas: Wellhead control panels and pipeline monitoring stations using CompactLogix as the local controller.
- General discrete manufacturing: Any 1769 Compact I/O rack requiring a DC power source where a separate 24VDC supply is already available.
System Integration & Compatible Parts
The 1769-PB4 is designed to integrate seamlessly within the Allen-Bradley CompactLogix 1769 ecosystem. Commonly paired components include:
- Controllers: 1769-L16ER-BB1B, 1769-L18ER-BB1B, 1769-L24ER-QB1B, 1769-L30ER, 1769-L33ER, 1769-L36ERM
- Digital I/O modules: 1769-IQ16, 1769-OB16, 1769-IA16, 1769-OA16
- Analog I/O modules: 1769-IF4, 1769-OF4, 1769-IF8
- End caps: 1769-ECR (right end cap), 1769-ECL (left end cap)
- Communication modules: 1769-L19ER-BB1B with EtherNet/IP
If you need help confirming compatibility with your existing rack configuration, contact our technical team before ordering.
Our Quality Assurance Process
At Konmask.com, every 1769-PB4 unit goes through a structured verification process before shipment:
- Source verification: Units are sourced from authorized distributors or traceable supply chains with documented provenance.
- Visual inspection: Housing, connector pins, label integrity, and serial number consistency are checked against manufacturer standards.
- Functional pre-check: Where applicable, power-on testing is performed to confirm basic electrical function.
- Packaging: Anti-static packaging with moisture barrier and shock-absorbing foam to protect during international transit.
- Documentation: Certificate of conformance available upon request for regulated industries.
How to Order
- Submit an inquiry — Use the contact form or email [email protected] with your required quantity and delivery timeline.
- Receive a quote — Our team will respond within 1 business day with pricing, lead time, and shipping options.
- Confirm & pay — We accept T/T bank transfer, PayPal, and other B2B payment methods by arrangement.
- Shipment & tracking — Units are dispatched with full tracking. Express (DHL/FedEx/UPS) and economy freight options available.
- After-sales support — Our technical team is available post-delivery for installation guidance and warranty queries.
Why Choose Konmask.com?
- Industrial automation specialists — We focus exclusively on PLC, DCS, and automation hardware, so you deal with engineers, not generalists.
- Global B2B supply — We ship to over 50 countries with experience navigating export documentation, customs, and compliance requirements.
- Competitive pricing — Direct sourcing relationships allow us to offer market-competitive pricing on hard-to-find and standard parts alike.
- Fast response — Inquiries are answered within 1 business day; urgent requests are prioritized.
- Traceability & transparency — We provide full sourcing documentation and are committed to counterfeit-free supply.
Frequently Asked Questions
Q: Is the 1769-PB4 compatible with all CompactLogix controllers?
A: The 1769-PB4 is designed for the 1769 Compact I/O platform and is compatible with CompactLogix controllers that use the 1769 I/O bank. Always verify your specific controller model’s power budget against the 1769-PB4 output ratings before installation.
Q: Can the 1769-PB4 be mounted on either side of the controller?
A: Yes. The 1769-PB4 can be installed on the right or left side of the CompactLogix controller within the I/O bank, providing flexibility in panel layout design.
Q: What is the input voltage requirement for the 1769-PB4?
A: The 1769-PB4 requires a 24VDC input supply. Ensure your panel’s DC bus meets this requirement before installation.
Q: Do you provide a warranty on the 1769-PB4?
A: Yes. Konmask.com provides a standard warranty on all units. Contact us for specific warranty terms applicable to your order.
Q: Can I request a certificate of conformance or test report?
A: Yes. Documentation including certificates of conformance is available upon request for quality-regulated industries.
Q: What is the lead time for the 1769-PB4?
A: Lead time depends on current stock levels. Contact us with your required quantity and we will confirm availability and estimated delivery within 1 business day.
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