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- Allen Bradley
- 1769-OA8
- CompactLogix I/O Module
- USA
- 118 mm × 35 mm × 87 mm
- 0.28kg
- Xiamen, China
- New & In Stock
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Technical Profile – CompactLogix 1769-OA8 Discrete Output Module
The 1769-OA8 is an industrial-grade 8-point AC digital output module designed for use in CompactLogix-based control systems. It is widely applied in automation environments where reliable switching of AC loads is required, such as motors, solenoids, indicators, and industrial actuators.
Product Introduction
The 1769-OA8 module provides eight solid-state AC outputs, arranged in two isolated groups of four channels each. It is designed for 85–265V AC load switching and is commonly integrated into CompactLogix and MicroLogix automation platforms.
This module operates using triac-based output technology, allowing silent, fast, and long-life switching compared to mechanical relays. It is engineered for continuous industrial operation under harsh electrical and environmental conditions.
Key Technical Parameters
| Parameter | Specification |
|---|---|
| Output Channels | 8 points (2 groups of 4) |
| Output Type | AC solid-state (triac) |
| Output Voltage Range | 85–265V AC |
| Frequency Range | 47–63 Hz |
| Maximum Current per Module | 2A @ 60°C / 4A @ 30°C |
| On-State Current (minimum) | 10 mA |
| Leakage Current | up to 2.5 mA |
| Isolation Voltage | 1836V AC (1s) / 2596V DC (1s) |
| Signal Delay | 0.5 cycle ON / 0.5 cycle OFF |
| Backplane Current Draw | ~145 mA @ 5.1V DC |
| Power Dissipation | ~2.1–4.9 W |
| Short Circuit Protection | Not included |
Mechanical Dimensions & Weight
| Parameter | Specification |
|---|---|
| Height | 118 mm (approx. 4.65 in) |
| Width | 35 mm (approx. 1.38 in) |
| Depth | 87 mm (approx. 3.43 in) |
| Installed Height (with tabs) | 138 mm |
| Weight | 0.28 kg |
Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5% – 95% non-condensing |
| Vibration Resistance | Industrial grade (DIN rail mounted) |
| Shock Resistance | Up to 30G (panel mounted) |
Product Series
The module belongs to the:
- CompactLogix 1769 Series I/O Platform
- Modular distributed control I/O family
- Designed for mid-range PLC automation systems
This series is known for scalable expansion, flexible I/O configuration, and strong integration with industrial controllers.
Brand (Not explicitly repeated as requested)
The product originates from a globally recognized industrial automation manufacturer specializing in PLC systems, drives, and control hardware.
Product Applications
The 1769-OA8 is typically used in:
- Industrial automation control panels
- Conveyor systems and material handling lines
- Packaging machinery
- HVAC control systems
- Pump and compressor control
- Factory lighting and signaling systems
- Process automation systems
- Machine tool output switching
It is especially suitable for environments requiring fast switching of AC loads with long operational life.
Product Advantages
1. High Reliability Switching
Uses solid-state triac outputs, eliminating mechanical wear and improving lifespan.
2. Compact Modular Design
Small footprint allows dense installation in control cabinets.
3. Electrical Isolation
Strong isolation between field outputs and backplane improves system safety.
4. Fast Response Time
Half-cycle switching provides precise timing control.
5. Industrial Voltage Compatibility
Supports wide AC voltage range (85–265V AC), suitable for global applications.
6. Easy Integration
Designed for plug-in use in CompactLogix chassis systems.
Recommended Models – Same Series or Closely Related (5 Models)
| Attribute | 1769-OA8 | 1769-OB8 | 1769-IA8 | 1769-OW8 | 1769-IF8 |
|---|---|---|---|---|---|
| Type | AC Output | DC Output | AC Input | Relay Output | Analog Input |
| Channels | 8 | 8 | 8 | 8 | 8 |
| Voltage | 85–265V AC | 24V DC | 120V AC | AC/DC | Analog |
| Isolation | Yes | Yes | Yes | Yes | Yes |
| Response Type | Solid-state | Transistor | Input sensing | Relay | Signal processing |
| Dimensions | 118×35×87 mm | Similar | Similar | Similar | Similar |
| Weight | 0.28 kg | ~0.25 kg | ~0.27 kg | ~0.3 kg | ~0.3 kg |
| Application | AC load control | DC load control | Signal input | General switching | Analog signal reading |
Recommended Popular Models (Same Manufacturer – 5 Units)
| Attribute | 5069-L306ER | 1756-OB16E | 1756-IF8 | 1734-OB8E | 1769-L24ER-QBFC1B |
|---|---|---|---|---|---|
| Type | Controller | Digital Output | Analog Input | I/O Module | Compact PLC |
| Channels | CPU | 16 | 8 | 8 | Integrated I/O |
| Voltage | System CPU | 24V DC | Analog | 24V DC | Mixed |
| System Level | High performance | ControlLogix | ControlLogix | Point I/O | CompactLogix |
| Dimensions | Larger CPU unit | Modular | Modular | Compact | Compact |
| Weight | ~1 kg+ | ~0.3 kg | ~0.3 kg | ~0.2 kg | ~0.6–1 kg |
| Application | Advanced automation | High-speed output | Analog processing | Distributed I/O | Small machine control |
Summary
The 1769-OA8 is a robust AC output module designed for industrial automation systems requiring reliable multi-channel AC switching. It belongs to the CompactLogix 1769 I/O family and is widely used in machine control, process automation, and factory systems.
Its strengths lie in wide voltage compatibility, solid-state durability, compact structure, and fast switching performance, making it suitable for long-term industrial deployment.