Application Scenarios
A stamping shop in an automotive parts plant controlled pneumatic valves and auxiliary contactors across multiple press lines using an SLC 500 system. The original standard output modules could not deliver enough current per channel, forcing engineers to install over 40 interposing relays in a single cabinet. Wiring became a rat’s nest, and relay contact oxidation caused three unplanned shutdowns per month. After switching to the 1746-OBP16, the relays were removed entirely. The 1746-OBP16 drives those loads directly with 1.5A per channel at 30°C and 6.4A total per module. Cabinet space expanded by nearly one-third, and relay-related downtime dropped to zero.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 1746-OBP16 |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Category | High-Current Sourcing DC Output Module |
| Output Channels | 16 |
| Voltage Category | 24V DC Source |
| Operating Voltage | 20.4 to 26.4V DC |
| Continuous Current per Point | 1.5A at 30°C / 1.0A at 60°C |
| Continuous Current per Module | 6.4A at 0 to 60°C |
| Surge Current | 4A per point / 32A per module for 10 ms |
| Backplane Current | 250 mA at 5V DC |
| Signal Delay (Resistive) | On: 1.0 ms / Off: 2.0 ms |
| Off-State Leakage | 1 mA max |
| Fuse Type | Littelfuse #322010 or #332010 (10A) |
| Fuse Kit | 1746-F8 (5 fuses per kit) |
| Terminal Style | Removable Screw Terminal Block |
