The 1771-P7 is an AC, 16A Power Supply by Allen-Bradley and Rockwell Automation. It has a supply voltage range of 120 Volts and 220 Volts AC. This hardware has a real input power of 108 Watts and an apparent input power of 176 Volt-amperes (maximum). The external transformer for the 1771-P7 is 270 Volt-amperes at full load. This power supply has an isolation voltage tested to 1200 Volts AC for 1 second. Output voltage for the P7 is 5.06 Volts DC +/- 3.8%. It has an output current of 16 Amps maximum at 5 Volts DC; maximum user-supplied overcurrent protection is 15 Amps and terminal strip screw torque is 12 pound-inches. This device has an approximate weight of 1.95 kilograms, or 4.3 pounds. It has dimensions of 315 x 115 x 159 millimeters, or 12.40 x 4.53 x 6.25 inches.

Environmental specifications for the 1771-P7 include an operating temperature between 0 and 60 degrees Celsius and a storage temperature between -40 and 85 degrees Celsius. Relative humidity is 5% to 95%, non-condensing. The operating shock rating for this device is 15 g while the nonoperating shock rating is 30 g; vibration is 2g at 10-500 Hertz. The emissions rating for this hardware is compliant with CISPR 11: Group 1, Class A and ESD immunity is compliant with IEC 61000-4-2. Radiated RF immunity is compliant with IEC 61000-4-3 and EFT/B immunity is compliant with IEC 61000-4-4. Surge transient immunity is compliant with IEC 61000-4-5 and conducted RF immunity is compliant with IEC 61000-4-6. This hardware has an open-style enclosure type rating (none).

Part number 1771-P7 is an external power supply unit. Set the stop jumper on the I/O chassis to the N position before installing it. By sliding on the left side of the I/O installed panel, it can be connected. This unit requires a minimum of six (6) inches standing clearance if placed independently. Note that you should only mount the device on or near the chassis to allow for convection cooling. This device was designed to be compatible with PLC-5 and Mini PLC-2 devices, as well as other selected processors. However, this device is not compatible with the 1771-A1, 1771-A2, or 1771-A4 I/O chassis. If used for parallel communication, the device memory may get damaged and may also affect the connected devices. The Allen-Bradley 1771-P7 is an independent AC power source of 16 amperes. It has an input voltage of 120 volts AC with a rated current of 2.0 amperes and 220 volts AC AC input with a rated current of 1.0 amperes. It has a rated output current of 16 amperes at 5 volts DC, as well as an output voltage of 5.06 volts. When installing the module, make sure all areas used for temporary mounting are low. This device is capable of withstanding an operating shock rated up to 15 G, as well as a non-operating shock rated up to 30 G. It also has a vibration rating of 2 G at 10 to 500 hertz. The operating temperature for this device should range from 0 to 60 degrees Celsius.