The Allen-Bradley 1746-OV8 delivers reliable discrete output control for your SLC 500 system. This module provides eight sinking output channels. It operates within a 10-50 VDC voltage range. Engineers choose this module for high-current applications. It is a single-slot solution that installs directly into any SLC 500 chassis. The module consumes only 135mA from the 5V backplane.
Product Procurement & Buyer Guide
Core Technical Specifications for Selection
The 1746-OV8 offers eight sinking outputs in one group. Each output handles a continuous current of 1.0 A at 30 °C. The entire module supports a total of 8.0 A at that temperature. At 60 °C, derate to 0.5 A per output and 4.0 A per module. This module has a maximum on-state voltage drop of 1.2 V at 1 A. It also provides a surge current of 3.0 A for 10 milliseconds per point.
Solving Industrial Control Pain Points
Procurement managers need a module that matches exact load requirements. The 1746-OV8 fulfills this need with its robust current ratings. Application engineers require fast signal response times. This module delivers an on-state signal delay of only 0.1 ms. The off-state delay is just 1.0 ms. This speed ensures precise actuator and valve control in your process.
Environmental and Certification Compliance
This module operates reliably in temperatures from 0 to +60 °C. It also withstands storage temperatures from -40 to +85 °C. The 1746-OV8 holds essential agency certifications for global use. It is UL and C-UL listed for Class I, Division 2 environments. It also carries CE and C-Tick marks for international compliance. Its humidity tolerance ranges from 5 to 95% without condensation.
Step-by-Step User & Installation Guide
Mechanical Mounting in the Chassis
The 1746-OV8 occupies a single slot in any SLC 500 chassis. First, ensure the chassis power is off before installation. Align the module with the card guides in the slot. Then, firmly push the module into the backplane connector. Finally, tighten the top and bottom screws to secure the module.
Wiring the Output Terminals
This module uses color-coded removable terminal blocks for easy wiring. The terminals feature self-lifting pressure plates. These plates accept up to two 14 AWG (2 mm²) wires each. Connect your sinking loads to the output terminals. Use the common terminals for the DC return path. You can also use a pre-wired cable or a 1492 interface module for connection.
Electrical Deployment and Status Monitoring
After wiring, apply power to the system. The front panel has LED indicators for each I/O point. These LEDs show the on or off status of each output channel. The module provides a minimum load current of 1 mA. It also has a maximum off-state leakage of 1 mA to prevent false triggering. The step response for the input filter is 60 milliseconds in and 2.5 milliseconds out.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1746-OV8 discrete output module
- One (1) color-coded removable terminal block
- Product documentation and installation guide
- Express delivery shipping is available via FedEx, UPS, and DHL.
