The 1769‑OA8 from Allen‑Bradley is a versatile output module designed for the CompactLogix and MicroLogix 1500 control platforms. This module provides eight solid-state AC outputs, which are arranged into two isolated groups of four channels each. As a result, it delivers reliable switching performance for a wide variety of industrial AC loads. For instance, you can use it to control magnetic contactors, motor starters, solenoid actuators, variable frequency drives, and indicator lamps. Consequently, the 1769-OA8 serves as a fundamental building block for many automation systems.
Furthermore, this module supports a broad operating voltage range from 85V AC up to 265V AC, with a frequency tolerance of 47 to 63 Hz. This wide range ensures compatibility with global power grids and helps maintain stable operation even under slight line fluctuations. Additionally, the output signal delay is consistent, with both turn-on and turn-off times equal to one-half cycle. Therefore, you can expect predictable and repeatable switching performance for time-critical applications.
The 1769‑OA8 module is engineered for robust industrial environments. Specifically, its technical parameters include:
Operating Voltage Range: 85‑265V AC
Operating Frequency: 47‑63 Hz
Outputs: 8 (solid-state)
Output Groups: 2 groups, 4 outputs per group
Signal Delay: Turn-on = ½ cycle; Turn-off = ½ cycle
Bus Current Draw: 145 mA at +5V DC (1.125 W)
Heat Dissipation: 2.12 W
Wire Size (Solid): 22‑14 AWG
Wire Size (Stranded): 22‑16 AWG
Each group features an independent AC common terminal. Consequently, group 1 (channels 0‑3) and group 2 (channels 4‑7) can operate at different voltage categories if needed. Nevertheless, both groups can also share the same voltage level, providing flexibility for mixed-load applications. The module's status indicators offer clear visual feedback, simplifying diagnostics and troubleshooting during operation.
The 1769‑OA8 supports two standard mounting methods for easy installation. Specifically, you can mount it on a DIN rail or directly onto a panel using screws. This flexibility allows for quick integration into new or existing control cabinets. The module occupies a single slot width within a CompactLogix chassis, making it a space-efficient solution.
Moreover, its physical dimensions are compact, with shipping measurements of 8 x 8 x 5 inches. The unit weighs approximately 2.0 lbs, which contributes to its lightweight and manageable handling. Additionally, it features a robust design suitable for typical industrial environments, with an operating temperature range that aligns with standard Allen‑Bradley I/O modules. This module is available in both Series A and Series B, and both revisions maintain compatibility with the same controller platforms.
When integrating the 1769‑OA8 into a CompactLogix system, you must observe the power supply distance rating. Specifically, this module should not be installed more than eight modules away from the power supply unit. This rule ensures proper bus communication and reliable power distribution across the assembly.
For MicroLogix 1500 systems, the installation process is straightforward. You simply place the 1769-OA8 module after the base unit and connect it via the ribbon cable to establish the communication bus. Additionally, this module works with communication adapters such as the 1769-ADN (DeviceNet) and 1769-AENTR (Ethernet). Meanwhile, system configuration parameters—including module inhibition, packet interval, slot assignment, and revision number—are managed through the programming software (e.g., RSLogix 5000 or Studio 5000). Therefore, careful verification of these settings during initial setup will ensure seamless communication with the controller.
The 1769‑OA8 is particularly well-suited for driving AC loads in diverse industrial sectors. Typical applications include:
Controlling magnetic contactors and AC relays
Activating motor starters and solenoid valves
Switching pilot lamps and indicator panels
Interfacing with variable frequency drives (VFDs)
General-purpose on/off control in manufacturing lines
Because of its solid-state design, it offers high switching reliability and long operational life compared to mechanical relays. Furthermore, its ability to handle inrush currents makes it suitable for inductive loads common in motor control centers.
1 x 1769‑OA8 CompactLogix 8-Point AC Output Module
1 x Installation instructions sheet
1 x Removable terminal block (RTB)
We ship this item via FedEx, UPS, or DHL, depending on your location and preference. All orders are carefully packaged to prevent damage during transit. Tracking details will be provided once the order has been dispatched.
1. Is the 1769‑OA8 compatible with both CompactLogix and MicroLogix 1500 controllers?
Yes, the 1769‑OA8 is fully compatible with the 1769 CompactLogix chassis and the MicroLogix 1500 base unit. It also integrates with DeviceNet and Ethernet adapters like the 1769-ADN and 1769-AENTR.
2. What is the maximum voltage range for this output module?
The operating voltage range is from 85V AC to 265V AC, with a frequency of 47 to 63 Hz. This allows for stable performance across most global AC power standards.
3. How many output groups does this module have?
The module has two separate groups. Each group consists of four outputs, and each group features its own independent AC common terminal for flexible wiring.
4. Can I mount this module on a DIN rail?
Absolutely. The 1769‑OA8 supports both DIN rail mounting and panel mounting, providing installation flexibility to suit your cabinet layout.
5. What is the signal delay time for the outputs?
The signal delay is one-half cycle for both turn-on and turn-off. This ensures predictable timing and consistent response in your control applications.
| Brand Name | |
| Model No. | 1769-OA8 |
| Product Type | Output Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
