The Allen-Bradley 1756-OB16E discrete output module is a key component of the ControlLogix Programmable Automation Controllers platform, providing reliable DC output for actuating 24VDC-rated devices. It features 16 output channels divided into two electronically-fused groups of eight, supporting applications that include relay coils, solenoids, and pilot lamps. Designed for seamless integration with any 1756 ControlLogix rack and compatible enclosures such as the 1756-A4 and 1756-A17, this module handles an output voltage range of 10-31.2 VDC and delivers up to 1A per channel or 8A per module at 60 °C. The 1756-OB16E offers superior performance with fast response times, a surge current capability of 2A for 10 ms per point, and low power dissipation, making it an efficient choice for high-demand industrial environments.
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Technical specifications for 1756-OB16E
| Manufacturer | Rockwell Automation |
|---|---|
| Power Dissipation (Max) | 4.1 W @ 60 °C (140 °F) |
| Module Type | Digital DC output Module |
| Series | ControlLogix |
| Part Number/Catalog No. | 1756-OB16E |
| Brand | Allen-Bradley |
| No. of outputs | Sixteen (16) |
| Output Voltage range | 10-31.2 VDC |
| Nominal output voltage | 24VDC |
| Module Keying | Electronic |
| RTB Keying | User-defined mechanical |
| Slot Width | 1 |
| Output Delay Time, OFF to ON | 70 µs nom/1 ms max |
| Output Delay Time, ON to OFF | 360 µs nom/1 ms max |
| Backplane Current at 24 Volts | 2 milliamperes |
| Backplane Current at 5.1 Volts | 250 milliamperes |
| Thermal Dissipation | 13.98 BTU/hr @ 60 °C (140 °F) |
| Removable Terminal Block(s) | 1756-TBNH; 1756-TBSH |
| Outputs | 16-Point Electronically Fused |
| Voltage | 12-24 Volts DC |
| Operating Voltage Range | 10-30 Volts DC |
| Maximum Output Current Rating-Point | 1 Amp at 60 Celsius |
| Maximum Output Current Rating-Module | 8 Amps at 60 degrees Celsius |
| Backplane Current at 5 Volts | 250 milliamps |
| Removeable Terminal Block(s) | 1756-TBNH, 1756-TBSH |
| Isolation Voltage | 50 Volts Continuous |
| Enclosure | None |
| UPC | 10612598180810 |
| UNSPSC | 32151705 |
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