- Provides sixteen relay outputs arranged as two groups of eight points per common
- Switches documented field circuits from 5 to 125 volts DC or 5 to 265 volts AC
- Uses a removable terminal block so field wiring can remain organized during module service
1746-OW16 is the sixteen-channel relay-output member of the Allen-Bradley SLC 500 discrete I/O family.
Its dry relay contacts accommodate AC or DC loads within the documented contact ratings, while two commons divide the sixteen outputs into two eight-point groups.
Selection must be based on the actual load category, steady-state current, inrush, switching frequency, suppression, common wiring, and the available SLC chassis power budget.
Availability, condition, price, and shipping time for 1746-OW16 are confirmed during quotation.
Allen-Bradley 1746-OW16 16-Point Relay Output Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Verify both steady-state current and inrush against the relay contact rating for the actual AC or DC load
- Use suppression appropriate for inductive devices to reduce contact arcing and electrical noise
- Do not assume that the module-wide current rating permits every point to carry its individual maximum simultaneously
- The sixteen outputs are divided into two groups with eight points sharing each common
- Record the original terminal assignments before moving the removable terminal block to a replacement module
- Keep incompatible field potentials on separate common groups and follow the documented wiring method
- Relay contacts are wear components, so intermittent or welded outputs require load and contact-condition checks
- Confirm chassis power capacity before replacement because the module draws current from both backplane supplies
- A replacement should be tested with the machine in a safe state before normal production is restored
- Switching AC contactors, pilot devices, and interposing relays from an SLC 500 controller
- Controlling DC solenoids and other discrete field loads within the documented relay ratings
- Mixed-voltage machine control where the two isolated common groups are wired to suitable field supplies