PLC Power Supply Module 1769-PB2 Allen-Bradley

Availability: 99 left in stock

Product Description The Allen-Bradley 1769-PB2 is a DC input power supply module designed for CompactLogix and MicroLogix 1500 systems. It provides supplemental backplane power when the...

SKU: 1769-PB2

Manufacturer: Allen Bradley
Product No.: 1769-PB2
Product Type: PLC Power Supply Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 2000g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Description

The Allen-Bradley 1769-PB2 is a DC input power supply module designed for CompactLogix and MicroLogix 1500 systems. It provides supplemental backplane power when the controller’s integrated supply is insufficient or when additional distributed I/O banks are required.
Built for industrial reliability, the 1769-PB2 features reinforced insulation and an extended power supply distance rating, enabling flexible system expansion while maintaining stable voltage and signal integrity.

Technical Specifications

Parameter	Specification
Input Voltage Range	19.2 to 31.2 V DC
Nominal Input Voltage	24 V DC
Power Consumption	50 VA @ 24 V DC
Output Current Capacity	2.0 A @ 5.1 V DC, 0.8 A @ 24 V DC
Power Dissipation	Max. 7.5 W @ 60 °C
Inrush Current	30 A max. @ 31.2 V DC
Distance Rating	8 modules per side (16 total per supply)
Isolation Voltage	75 V continuous, tested at 1697 V DC for 1 s
Internal Protection	Non-replaceable fuse
Fuse Type	Wickmann 19193-6.3A or Littelfuse 021706.3MXP
Wire Size	14 AWG (2.5 mm²) solid copper, 90 °C
Operating Temperature	0 to 60 °C (32 to 140 °F)

System Placement and Installation

When installed in a CompactLogix system, the distance rating of the 1769-PB2 is a key design constraint. Each power supply can support up to eight I/O modules on either the left or right side.
The module is commonly installed in the second or third I/O bank to maintain regulated backplane voltage in high-density configurations. Mounting options include DIN rail (zinc-plated, yellow-chromate) or panel mounting for enhanced vibration resistance.

Frequently Asked Questions

Is the internal fuse field-replaceable?
No. The fuse is intended for catastrophic fault protection only and is not field-replaceable. A blown fuse typically requires module replacement or factory-level repair to maintain IEC Class 1 grounding and safety compliance.

What is the purpose of reinforced insulation?
Reinforced insulation electrically isolates the DC input from the system backplane, protecting CPUs and I/O modules from external noise, surge transients, and grounding disturbances.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.