Allen Bradley 1756-OB8
The Allen-Bradley 1756-OB8 is a ControlLogix discrete output module. It features Eight (8) 24VDC output channels in Two (2) groups of Four (4) channels each. Each channel delivers an output voltage range of 10-30VDC with nominal signal voltage of 24VDC. It is compatible for use with any ControlLogix chassis and uses the 1756-TBNH and 1756-TBSH Removable Terminal Block (RTB).
This Allen Bradley 1756-OB8 is supplied brand new by PartLogic for machine control, process automation, industrial communication, equipment maintenance and replacement applications. It forms part of our Industrial automation > Plc controllers > Io modules > Digital output > Controllogix range and is referenced internally as PartLogic SKU PL26805307167.
Before ordering, please confirm the manufacturer part number, product specifications and compatibility with your existing equipment. If you are replacing a failed, obsolete or hard-to-find part, contact PartLogic and we can help check suitability or source related components.
| Manufacturer | Allen Bradley |
| Category | PLCs |
| Product Line | ControlLogix |
| Part Number | 1756-OB8 |
| UPC | 612598171415 |
| Weight | 0.75 lbs (0.34 kg) |
| Module Type | Digital DC output module |
| No. of Outputs | Eight (8) |
| Output Voltage | 24VDC |
| Output Voltage range | 10-30VDC |
| No. of output groups | Two (2) |
| No. of channels per group | Four (2) |
| Current per point | 2 A @ 60 °C (140 °F) |
| Current per module, max | 8 A @ 60 °C (140 °F) |
| Signal Delay, ON transition | 1 ms max |
| Signal Delay, OFF Transition | 2 ms max |
| Backplane Current, 5.1VDC | 165 mA |
| Backplane Current, 24VDC | 2 mA |
| Total Backplane power | 0.89 W |
| Removable Terminal Block (RTB) | 1756-TBNH 1756-TBSH |
| Outputs | 8-Point |
| Voltage | 12-24 Volts DC Source |
| Operating Voltage Range | 10-30 Volts DC |
| Maximum Output Current Rating-Point | 2 Amps at 60 degrees Celsius |
| Maximum Output Current Rating-Module | 8 Amps at 60 degrees Celsius |
| Power Dissipation (Max) | 2.5 Watts at 60 Celsius |
| Removeable Terminal Block(s) | 1756-TBNH, 1756-TBSH |
| Isolation Voltage | 50 Volts Continuous |
| Enclosure | None |
| Brand | Allen Bradley |
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