The 1756-OB16E ControlLogix DC Output Module from Rockwell Automation is a high-reliability 16-point 24V DC electronically fused output module designed for advanced industrial automation systems requiring fast switching, per-point protection, and stable high-density output control.
Unlike standard DC output modules, the 1756-OB16E integrates electronic fusing on each output channel, significantly improving fault isolation and reducing downtime caused by short circuits or wiring errors. It is widely used in high-performance manufacturing lines, packaging equipment, automotive systems, and process automation applications where uptime and protection are critical.
Technical Specifications (Including Size & Weight)
| Parameter | Specification |
|---|---|
| Model | 1756-OB16E |
| Series | ControlLogix Digital Output Modules |
| Module Type | 16-Point Electronically Fused DC Output Module |
| Number of Outputs | 16 outputs |
| Output Voltage Range | 10–31.2V DC |
| Nominal Voltage | 24V DC |
| Output Type | Sinking transistor outputs |
| Output Configuration | 2 groups of 8 points |
| Continuous Current per Point | 1.0 A |
| Continuous Current per Module | 8 A |
| Output Protection | Electronic fuse per channel |
| Switching Speed | ~0.7–1 ms |
| Isolation Voltage | 250V continuous (group-to-backplane) |
| Backplane Current (5.1V DC) | ~250 mA |
| Power Dissipation | ~4.1–5.0 W |
| Field Power | External 24V DC required |
| Terminal Block | 1756-TBNH / 1756-TBSH |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5%–95% non-condensing |
| Weight | ~0.30–0.50 kg |
Physical Dimensions
- Size (H × W × D): 145 × 35 × 140 mm
This standard single-slot ControlLogix form factor allows dense installation in chassis systems while maintaining efficient thermal performance and modular scalability.
Recommended Related Models
The 1756-OB16E is commonly used with:
- 1756-IB16 digital input module
- 1756-OB16 standard DC output module
- 1756-OB16D diagnostic DC output module
- 1756-OA16 AC output module
- 1756-L71 / L73 ControlLogix CPUs
- 1756-EN2T EtherNet/IP communication modules
Popular Allen-Bradley ControlLogix Output Modules
Within the ControlLogix output family, widely used models include:
- 1756-OB16E electronically fused DC output module
- 1756-OB16 standard DC output module
- 1756-OB16D diagnostic DC output module
- 1756-OA16 AC output module
- 1756-OW16 relay output module
These modules support flexible system design across different industrial load types and protection requirements.
