The 1756-PA75 is an Allen-Bradley standard power supply. This module is installed in the dedicated power socket on the far left side of any ControlLogix chassis. The primary purpose of this power supply is to provide the necessary backplane power for each module installed in the chassis. The backplane power supply powers the module to enter the working state.
The 1756-PA75 must be equipped with an external power supply to operate. It is compatible with the 85-264VAC voltage range, with a frequency of 47-63 Hz and a nominal input voltage of 120VAC / 240VAC. The power supply at 0... +60 °C (+32... Rated output power at +140 °F is 75 W and current capacity at 3.3VDC is 4A; The value is 13 A for 5.1VDC and 2.8 A for 24VDC.
The 1756-PA75 is compatible with various ControlLogix chassis, such as the 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 and chassis series, especially the B Series and C series. If the 1756-PA75 input power supply is suddenly interrupted, this standard power supply can provide a hold time of 2 cycles @ 85V AC, 60 Hz 6 cycles @ 120V AC, 60 Hz 20 cycles @ 220V AC, 60 Hz. In addition, it has a rated 250V (continuous) isolation voltage, reinforced insulation type, backplane type power input and was tested at 3500V DC for 60 seconds.
1756-PA75 Requires hardware configuration.
The Allen-Bradley 1756-PA75 has A current capacity of 5.1V and a current of 13 A. This power supply must be installed on the left side of the 1756 case and has a non-replaceable fuse designed to prevent fire hazards caused by short circuits. 1756-PA75 is intended for use in polluting Class 2 industrial environments and excessive Class II applications (as defined in IEC 60664-1 publication). Note that the 1756-PA75 power supply can operate at altitudes up to 2000 meters without derating.
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