A-B 1756-PA72,also known as Allen-Bradley 1756-PA72 or 1756-PA72 C,is a key component in Rockwell Automation’s ControlLogix system,namely the standard AC power module.The following is a detailed introduction to A-B 1756-PA72:
I.Main features
A-B 1756-PA72
Input voltage:85~265VAC,nominal power supply is 120V/240VAC.
Output:
Current capacity is 4A at 3.3VDC.
Current capacity is 10A at 5.1VDC.
Current capacity is 2.8A at 24VDC.
Rated power:
Rated output power is 75W at 0+60°C(+32+140°F).
Power consumption rating is 25W in the range of 0~60°C.
Input frequency:47~63 Hz.
Maximum input voltage:100VA or 100 watts.
Power consumption rating:85.3 BTU/hour.
Maximum inrush current:20 amps.
Maximum current:15 amps.
Maximum transformer load:100VA.
Continuous voltage isolation:250 volts.
Insulation type:reinforced insulation,3500V DC for 60 seconds.
A-B 1756-PA72
2.Functions and applications
Provide stable power supply:As the core component of the ControlLogix system,the A-B 1756-PA72 is responsible for providing the system with stable and reliable DC power to meet the operating requirements of the ControlLogix control system and other related modules.
Overload protection:The power module has an overload protection function,which can cut off the power supply in time when an overload occurs to prevent equipment damage or system failure caused by overload.
Application in industrial automation:The A-B 1756-PA72 is widely used in industrial automation,especially in situations where precise control and high reliability are required.Its powerful functions and stability make it an important part of distributed control systems(DCS)and programmable logic controllers(PLC)systems.
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