Allen-Bradley Rockwell Automation 1791-24B8 block I/O module

The 1791-24B8 has an output rating of 500 milliamps/1Amps at 30 to 60 degrees Celsius with a vertical mounting and 250 to 500 milliamps at 30 to 60 degrees Celsius with a horizontal mounting. It has a current that surges at 3 Amps for 50 seconds that keeps recurring after 2 seconds. The 1791-24B8 has an output OFF-state current of 1 milliamps at a drop voltage of 1 Volts and 0.5 milliamps of current leakage. It has an external power supply with internal protection which supplies voltage in the range between 19.2 and 30 Volts DC at a current of 300 milliamps. The 1791-24B8 has a maximum thermal dissipation of 58.1 BTU/hour and a maximum power dissipation of 17.1 Watts. It has an operational temperature range between 0 and 60 degrees Celsius (32 and 140 degrees Fahrenheit) at a relative humidity of 5 to 95% non-condensing. The 1791-24B8 measures 176.5 millimeters x 68.8 millimeters x 98 millimeters (6.95 inches x 2.7 inches x 3.85 inches) and it weighs 1.02 kilograms (2.25 pounds).

Technical specifications for 1791-24B8

ManufacturerRockwell Automation

BrandAllen-Bradley

Part Number/Catalog No.1791-24B8

Voltage24 Volts DC

Inputs per Block24

Input On-state Voltage Range10 to 30 Volts DC

Input On-state Current11mA at 30 Volts max.

Input Off-state Voltage5 Volts DC max.

Input Off-state Current1.5mA min.

Outputs per Block8

Output Voltage Range10 to 30 Volts DC

External Power19.2 to 30 Volts DC

Dimensions6.95 x 4.35 x 3.85 in.

UPC10612598124791

Product Lifecycle Status*Discontinued/Obsolete