Get now: Allen-Bradley 1769-OB8 Compact Digital DC Output Module
Atlantechdrives provides you the 1769-OB8, a rugged and highly reliable 8-point digital sourcing output module for the CompactLogix and MicroLogix 1500 platforms. This module is the definitive choice for applications requiring robust DC switching with higher current capacity and group isolation for industrial actuators and control devices.
- Outputs: 8 Sourcing (PNP) Digital Outputs
- Current Rating: 1.0A per point @ 30°C / 0.5A per point @ 60°C
- Voltage Category: 24V DC
- Surge Current: 2.0A for 10ms
- Power Supply Distance: 8 modules
- Backplane Current: 145 mA @ 5.1V
Technical Superiority: High-Current Sourcing for Industrial Loads
Secure now the 1769-OB8 to drive heavier DC loads that high-density cards cannot handle. The 1769-OB8 features a superior current rating of up to 1.0A per point, making it ideal for large hydraulic valves, heavy-duty solenoids, and DC contactors. The module uses high-grade sourcing transistors that provide clean 24V DC power to the field side. Its group-isolated architecture ensures that electrical noise from the load side does not interfere with the logic processing of the CompactLogix CPU. When you order the 1769-OB8, you are acquiring a module engineered for extreme durability and thermal stability, capable of maintaining high performance even in harsh industrial environments with significant temperature fluctuations.
Installation Advice: Heat Management and Fusing
When installing the 1769-OB8, it is important to note its thermal characteristics. At its maximum 1.0A per point rating, the module dissipates significant heat; ensure the cabinet has adequate airflow and that you follow the derating curve if the ambient temperature exceeds 30°C. To protect the internal transistors, we recommend using fast-acting external fuses (like 1.5A to 2.0A) for each output point. Always use 14-22 AWG copper wire to ensure the voltage drop over the run is minimal. Sourcing your 1769-OB8 from Atlantechdrives ensures that the internal opto-isolators meet the original factory specifications, protecting your processor from DC surges.
Maintenance and Hardware Integrity
The 1769-OB8 is a solid-state device, but the terminal connections should be checked annually for oxidation. The 8 amber status LEDs on the front panel provide instant diagnostics for each output channel. If an output is active but the device is off, check the field power supply connected to the VDC+ terminal. Sourcing an authentic 1769-OB8 from Atlantechdrives guarantees the hardware quality required for 24/7 mission-critical uptime in material handling, automotive assembly, and chemical processing.
FAQs
Q: Can the 1769-OB8 be used with NPN sensors?
A: No, it is a Sourcing (PNP) output module designed to drive loads that are connected to the DC common.
Q: What is the maximum distance it can be from the power supply?
A: It has a Power Supply Distance Rating of 8 modules.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here.
This compact 8-point DC output module is a reliable choice for small drops controlled by a 1769-AENTR Ethernet adapter.
