The 1756-OA8E ControlLogix AC Output Module from Rockwell Automation is a compact 8-point electronically fused AC digital output module designed for high-reliability switching of industrial AC loads in ControlLogix systems.
Compared with standard AC output modules, the 1756-OA8E adds individual electronic fusing per channel, improving fault protection, reducing downtime risk, and enhancing safety in high-demand automation environments. It is widely used in manufacturing lines, packaging machines, process automation systems, and heavy-duty industrial control panels where stable and protected AC switching is critical.
Technical Specifications (Including Size & Weight)
| Parameter | Specification |
|---|---|
| Model | 1756-OA8E |
| Series | ControlLogix Digital Output Modules |
| Module Type | 8-Point Electronic Fused AC Output Module |
| Number of Outputs | 8 outputs |
| Output Voltage Range | 74–132V AC |
| Nominal Voltage | 120V AC |
| Output Type | Triac, electronically fused |
| Output Groups | 2 groups (4 points each) |
| Continuous Current per Point | 2 A @ 60°C |
| Continuous Current per Group | 4 A @ 30°C (derated to 2 A @ 60°C) |
| Continuous Current per Module | 8 A @ 30°C (derated to 4 A @ 60°C) |
| Surge Current | Up to 20 A (short duration) |
| Off-State Leakage Current | ≤ 3 mA per point |
| Output Protection | Electronic fusing per channel |
| Signal Delay | ~9–11 ms |
| Isolation Voltage | 125 V continuous (group-to-group) |
| Backplane Current (5.1V DC) | ~200 mA |
| Power Dissipation | ~5.5 W |
| Frequency | 47–63 Hz |
| Terminal Blocks | 1756-TBSH / 1756-TBNH |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5%–95% non-condensing |
| Weight | ~0.45 kg |
Physical Dimensions
- Size (H × W × D): 130 × 35 × 118 mm
This compact single-slot design allows efficient installation in standard ControlLogix chassis while maintaining high-density AC output capability.
Recommended Related Models
The 1756-OA8E is commonly paired with:
- 1756-IB16 digital input module
- 1756-OB16 DC output module
- 1756-OA8 standard AC output module
- 1756-OA16 higher-density AC output module
- 1756-L71 / L73 ControlLogix CPUs
- 1756-EN2T EtherNet/IP communication modules
Popular Allen-Bradley ControlLogix Output Modules
Within the same ecosystem, widely used modules include:
- 1756-OA8E electronic fused AC output module
- 1756-OA8 standard AC output module
- 1756-OA16 / OA16I AC output modules
- 1756-OB16 DC output module
- 1756-OW16 relay output module
These modules support scalable output architectures for diverse industrial automation needs.
