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The 1756-PB75R is a 24 Volts DC ControlLogix Redundant Power Supply manufactured by Allen-Bradley. The Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply is part of the ControlLogix 5000 Series of power supply controllers. The Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply features 24 Volts DC output, 30 Amps maximum inrush current, 110W maximum input power, and 32 Volts DC operating voltage. The Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply has an open-style enclosure. The current capacity of the 1756-PB75R ControlLogix Redundant Power Supply at 1.2 Volts is 1.5 Amps, at 3.3 Volts, it is 4 Amps, at 5.1 Volts, it is 13 Amps, and at 24 Volts, it is 2.8 Amps. The Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply is configured with a 1756 chassis to provide 1.2 Volts, 3.3 Volts, 5 Volts, and 24 Volts DC power to the chassis backplane (Chassis Standard Series B). The ControlLogix Redundant Power Supply provides automatic chassis load sharing between excessive ControlLogix Redundant Power supplies and consists of a status indicator to show the Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply visual operation state.
The Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply environmental specifications include at an operating temperature range of 0 to 60 degrees Celsius, a non-operating temperature range of -40 to 85 degrees Celsius, and a relative operating humidity of 5 to 95%, non-condensing. The Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply’s operational vibration is 2G at 10 to 500 Hertz, and its operating shock and non-operating shocks are 30G and 50G, respectively. The Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply’s dimensions are 5.51 x 4.41 x 5.71 inches and its approximate weight is 0.95 kilograms. The ControlLogix Redundant Power Supply utilizes the 1756-CPR2 cable to connect to the 1756-PSCA2 chassis adapter. An electrical arc may occur when the users connect or disconnect the ControlLogix Redundant Power Supply in the redundant mode, this may result in an explosion in a hazardous place. Repetition of electrical retractors may result in excessive wear on the contacts and on the mating connector. The ControlLogix Redundant Power Supply has auto-sensing voltage input connections. The users can replace it with another redundant power supply while operating the Allen-Bradley 1756-PB75R ControlLogix Redundant Power Supply only when it is in a non-redundant mode.
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