High-Current DC Digital Outputs for Industrial Control
The Allen-Bradley 1769-OB8 provides eight high-current digital outputs powered by 24V DC. It delivers reliable, solid-state switching for industrial automation systems. Moreover, it integrates seamlessly with CompactLogix controllers, MicroLogix assemblies, and EtherNet/DeviceNet adapters.
Key Features and Advantages
- Eight 24V DC high-current digital outputs with 4 points per group
- Solid-state design ensures fast switching and long-term reliability
- Supports read/write configuration data to maintain last state conditions
- Compatible with 1769 CompactLogix series and MicroLogix controllers
- Compact module mounts easily on DIN rails or panels to save space
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand & Manufacturer | Allen-Bradley / Rockwell Automation |
| Model Number | 1769-OB8 |
| Product Line | CompactLogix |
| Module Type | DC Digital Output Module |
| Input Type | Digital Output |
| Number of Outputs | 8 points (4 points per group) |
| Voltage Range | 20.4–26.4 V DC |
| Current Draw | 145 mA at 5.1 V |
| Surge Current | 4A for 10 ms, repeatable every 2 seconds |
| Communication Interface | 8-point digital I/O |
| Wire Size Solid | 14–22 AWG |
| Wire Size Stranded | 16–22 AWG |
| Replacement Terminal Block | 1769-RTBN18 |
| Replacement Door | 1769-RD |
| Mounting Options | DIN rail or panel mount |
| Module Width | 1 slot |
| Module Weight | 0.26 kg (0.56 lbs) |
| Dimensions | 11.94 x 3.56 x 8.64 cm (4.7 x 1.4 x 3.4 inches) |
| Module Origin | USA |
Installation Guidelines
Install the 1769-OB8 on a DIN rail or panel using tongue-and-groove connectors. Connect adjacent modules carefully and lock the bus connectors together. Avoid exposure to dust, moisture, and static for reliable operation.
System Integration and Compatibility
The module integrates with MicroLogix 1500, CompactLogix controllers, and EtherNet/DeviceNet adapters. It supports I/O memory mapping for flexible configuration. Engineers can stack multiple modules to expand system I/O efficiently.
Shipping and Warranty
Each 1769-OB8 ships individually in secure packaging. Worldwide delivery is available through FedEx, UPS, and DHL. Allen-Bradley provides a 12-month warranty covering defects in materials and workmanship.
Expert FAQ
Q: Can this module handle high-current industrial loads?
A: Yes, the eight outputs support 4A surge current for short durations safely.
Q: Does the module retain last state after power loss?
A: Yes, read/write configuration allows maintaining last state and user-defined conditions.
Q: Which controllers are compatible with the 1769-OB8?
A: It works with CompactLogix, MicroLogix 1500, and assemblies using 1769-AENTR or 1769-ADN adapters.
Q: Can the module operate in stacked configurations?
A: Yes, you can stack multiple modules with proper bus connection locking for expanded I/O.
Details
| Weight | 0.26 kg |
|---|---|
| Dimensions | 11.94 × 3.56 × 8.64 mm |
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