1756-PB72K

The 1756-PB72K power supply module from Allen-Bradley is designed for use with the 1756 ControlLogix systems and it belongs to the standard power supplies category. It is used to provide 1.2, 3.3, 5.1, and 24 Volts DC voltage to the 1756 chassis backplane. The 1756-PB72K module can accept DC input voltage ranging from 18 to 32 Volts DC while the nominal value of the input voltage is 24 Volts DC. The peak input power level is 95 Watts and the maximum power output at 32 to 140 degrees Fahrenheit is 75 Watts. The hold-up time for the 1756-PB72K module is 35 milliseconds at 18 Volts DC, 40 milliseconds at 24 Volts DC, and 40 milliseconds at 32 Volts DC. The peak inrush current value is 30 Amps. The current capacity ratings for the 1756-PB72K module at 1.2 Volts, 3.3 Volts, 5.1 Volts, and 24 Volts are 1.5 Amps, 4 Amps, 10 Amps, and 2.8 Amps, respectively.

The dimensions for the 1756-PB72K module are 14 x 11.2 x 14.5 centimeters. The 1756-PB72K module weighs approximately 0.77 kilograms. This power supply module is designed to be installed at the left side of the 1756 I/O chassis. The 1756-PB72K module is compatible with the following Series A, B, and C chassis: the 1756-A17, 1756-A13, 1756-A10, 1756-A7, and the 1756-A4 chassis. Allen-Bradley recommends the use of 2.5 mm2 stranded or solid copper wire which is rated for use at 194 degrees Fahrenheit or greater. The maximum insulation thickness on the wire should not exceed 1.2 millimeters. The recommended level of conductor screw torque is 0.565 N-m. The working and storage temperature ranges for the module are 32 to 140 degrees Fahrenheit and -40 to 185 degrees Fahrenheit, respectively.