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Allen Bradley 1746-OB16 Digital DC Output Module

Allen Bradley 1746-OB16 Digital DC Output Module

  • Product Item : 1746-OB16
  • Product Brand : Allen-Bradley
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The 1746-OB16 SLC 500 Digital DC Output Module by Allen-Bradley is a DC module with sixteen 24V DC outputs and it is lodged in any free slot in the 1746 I/O Chassis. It has 16 output points and a backplane electrical rating of 0.280A at 5 Volts DC and one of 0A at 24V DC. The 1746-OB16 has a load-dependent maximum signal delay time of 1ms for OFF and 0.1ms for ON and a maximum current loss of 1mA in its OFF state. In its ON state, it has a voltage loss of 1.2 Volts at 0.50A and the minimum load each point can carry is 1mA. The 1746-OB16 has a nominal input current of 0.5A at 30 degrees Celsius and 0.25 A at 60 degrees Celsius for each output point and it has a gross input current of 8A at 30 degrees Celsius and 4A at 60 degrees Celsius per module. It also has a current surge of 3A for 10ms recurring every 1s at 30 degrees Celsius and 2s at 60 degrees Celsius (140 degrees Fahrenheit). The 1746-OB16 provides voltage isolation between the backplane and the outputs tested at 1500 Volts AC and it has a total heat dissipation of 7.6 Watts. It has a UL-A196, CSA, and C-UL Class I, Division 2 Hazardous Environment ratings, and it is CSA and UL-certified. When operational, the 1746-OB16 has a working temperature range of 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) at 5 to 95% non-condensing humidity surrounding and it is designed to withstand a 30G operational shock and a 2.5G operational vibration at 57 to 200 Hertz.

Technical specifications for 1746-OB16

ManufacturerRockwell Automation

Module TypeDigital DC Output Module

SeriesSLC500

Part Number/Catalog No.1746-OB16

BrandAllen-Bradley

No. of OutputsSixteen (16) outputs

Output Voltage24VDC output

Operating Voltage Range10-30VDC

Output Delay Time, OFF to ON1.0 ms

Output Delay Time, ON to OFF0.1 ms

OFF state leakage current1 mA

Backplane Current at 5.1 Volts0.135 A

Continuous current per point1.5 A @ 30 °C (86 °F) 1.0 A @ 55 °C (131 °F)

Continuous current per module, max6.4 A @ 0...60 °C (32...140 °F)

Voltage Range10-50 Volts DC Source

Outputs16

Current/Output0.5 or 0.25 amps

Current/Module8 or 4 amps

Backplane Current (5 Volts)280 milliamps

Current/Module (30 Celsius)9 amps

ApplicationsHigh Current

Step Response60 milliseconds in, 2.5 milliseconds out

Heat Dissipation7.6 Watts

UPC10662468067055