Features:
- Delivers stable 24V DC backplane power with up to 90 W output for CompactLogix systems.
- Supports reliable operation during short power interruptions with integrated ride-through capability.
- Provides flexible installation with DIN rail or panel mounting and integrated backplane distribution.
The Allen-Bradley 1768-PB3 plays a critical role in CompactLogix automation systems by supplying regulated DC power to controllers and I/O modules. Its ability to handle a wide input range from 16.8 to 31.2V DC allows it to adapt to various industrial power environments. With integrated backplane distribution, the unit ensures consistent delivery of both 5V and 24V power across connected modules. This structure simplifies system design while maintaining electrical stability. In industrial automation, consistent power is essential, and this module supports uninterrupted control processes. The design also aligns with standard control cabinet configurations, making integration straightforward.
In terms of functionality, the Allen-Bradley 1768-PB3 enables efficient energy conversion and distribution within the CompactLogix platform. The controller converts supplied 24V DC into the required voltage levels for system components, ensuring optimized operation. The module also includes an external 24V DC terminal, allowing additional field devices to be powered when needed. Its internal protection and recommended external safeguards contribute to system safety and longevity. With defined current limits of 3.5 A on the backplane and 0.25 A externally, the module maintains controlled and predictable power flow. These features make it suitable for both new installations and system expansions.
From an application perspective, the Allen-Bradley 1768-PB3 is well-suited for manufacturing lines, process control systems, and automation environments requiring dependable power infrastructure. Its vibration tolerance and wide operating temperature range ensure performance stability in harsh industrial conditions. The module’s ride-through and hold-up capabilities help prevent system shutdowns during brief power disturbances, improving overall uptime. Installation flexibility further enhances its usability across different panel configurations. By supporting both legacy and modern CompactLogix systems, it extends the lifecycle of automation investments. This combination of reliability and adaptability makes it a practical choice for industrial power management.
The 1768-PB3 Allen-Bradley CompactLogix L4x DC In Power Supply may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1768-PB3 CompactLogix L4x DC In Power Supply Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Allen-Bradley 1768-PB3 CompactLogix L4x DC In Power Supply Specs
General
- Manufacturer Allen-Bradley
- Model 1768-PB3
- Condition New Original ready stock
- Product Family 1768-PA3,1769-PA4,1769-PB2
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Controller Matching: Strictly limited to CompactLogix L4x controllers; cannot be used with L1, L2, or L3 series controllers.
- Backplane Slot Mounting: Must be installed in the dedicated power slot on the far left of the 1768 backplane.
- Module Collaboration: Bridges and communicates with the 1769 I/O module bus via the built-in connector on the right.
- Software Configuration Identification: The version must be accurately identified and matched in the RSLogix 5000 or Studio 5000 hardware configuration.
- Automatic Overvoltage Cut-off: Integrated overvoltage protection circuitry prevents input voltage surges from damaging internal components.
- Overcurrent Fuse Mechanism: Automatically limits current in the event of an output short circuit or overload, protecting expensive modules on the backplane.
- Reverse Polarity Protection: Features DC input positive and negative reverse polarity protection to prevent equipment burnout due to incorrect field wiring.
- Safety Isolation Barrier: High electrical isolation between input and output blocks external power grid noise from interfering with the control system.
- Control System Power Supply: Provides a stable base DC power supply for CompactLogix L43 and L45 controller systems.
- Extended Backplane Drive: Drives the 1768 local backplane, supporting high-performance motion control and communication modules.
- Industrial Field Applications: Used for automation systems requiring compact control, such as assembly machinery, packaging equipment, and material handling.
- Distributed Control Networks: Provides power support for small control cabinets acting as network nodes in complex factory environments.