1794-OB8 | Flex 8 Point Digital Output Module
1794-OB8 | Flex 8 Point Digital Output Module
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Technical Specifications for 1794-OB8
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1794-OB8 |
| Product Type | Flex I/O Digital DC Output Module |
| Outputs | 8 Sourcing Current |
| On-state Voltage nom. | 24V DC |
| Output Current Rating | 4A |
| On-state Current max. | 500mA per Channel |
| On-state Voltage Drop max. | 0.5V DC |
| Off-state Leakage Current max. | 0.5mA |
| Isolation Voltage | 50V Continuous |
| Flexbus Current | 60mA @ 5V DC |
| Power Dissipation | 3.3W @ 31.2V DC max. |
| Thermal Dissipation | 11.2 BTU/hr. @ 31.2V DC max. |
| UPC | 10612598181299 |
weight : 0.13 kg
About 1794-OB8
The Allen-Bradley 1794-OB8 is a 1794 FLEX Digital DC Output Module. It is fitted inside the terminal bus, making a connection with the field devices and the I/O bus. Modules can be inserted or removed under power since the I/O module does not have any direct wiring. It in turn saves time and removes system restarting inefficiency.
The 1794-OB8 module has 8 current sourcing outputs. It has 24V DC nominal On-State output voltage. It has a maximum output delay time of 0.5ms from Off-to-On and 1ms from On-to-Off. It has a maximum power dissipation of 3.3W at 31.2V DC. Terminal Base units compatible with it are the 1794-TB3, 1794-TB3S, and the 1794-TBKD. The 1794-OB8 has an external power supply of 10 - 31.2V DC voltage with a 5% AC ripple and 10 - 35mA current. It is installed using a DIN rail by simply snapping it onto the DIN rail. It has various communication options such as ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.
The 1794-OB8 module has 16 yellow LED status indicators for each channel indicating a corresponding input device and output signal. It also has XT versions of standard modules for operating in extreme environments which reduce panel and maintenance costs. The 1794-OB8 has a 0 - 55 °C (32 - 131 °F) operating temperature and 5 - 95% noncondensing relative humidity.
Technical Description of 1794-OB8
