1756-PB72 - Power Supply

Description

Description: The Allen-Bradley 1756-PB72 is a ControlLogix Power Supply. This Power Supply has a nominal Input Voltage of 18 to 32 VDC with Nominal supply of 24VDC. It has a Current capacity of 4A at 3.3V; 10A at 5.1V and 2.8 A at 24V.

Technical Specifications for 1756-PB72

Manufacturer	Rockwell Automation
Brand	Allen-Bradley
Part Number/Catalog No.	1756-PB72
Series	ControlLogix
Module Type	Standard DC Power Supply
Input Voltage	24 Volts DC
Voltage Range	18-32 Volts DC
Input Power	95 Watts
Power Output	75 Watts at 60 Celsius
Isolation Voltage	250V (continuous), Reinforced Insulation Type, Power Input to Backplane Type tested @ 3500V DC for 60 s
Chassis	Series A

Max Inrush Current	30 Amperes
Current Capacity	1.5A at 1.2V; 2A at 3.3V; 8 A @ 50 °C (122 °F) 6 A @ 60 °C (140 °F) at 5.1V and 2.5 A @ 50 °C (122 °F) 2.0 A @ 60 °C (140 °F) at 24V
Hold Up time	35 ms @ 18V DC; 40 ms @ 24V DC; 40 ms @ 32V DC
Location	1756 Chassis Left Side
Chassis Compatibility	1756-A4/A, 1756-A7/A, 1756-A10/A, 1756-A13/A, 1756-A17/A, 1756-A4/B, 1756-A7/B, 1756-A10/B, 1756-A13/B, 1756-A17/B, 1756-A4/C, 1756-A7/C, 1756-A10/C, 1756-A13/C, 1756-A17/C
Operating Temperature	32-140 Fahrenheit (0-60 Celsius)
Dimensions	14.0 x 11.2 x 14.5 cm (5.51 x 4.41 x 5.71 in.)
Weight	0.95 kg (2.10 lb)

The Allen-Bradley 1756-PB72 ControlLogix Standard DC Power Supply has a power input of 24V DC. The 1756-PB72 provides built-in overcurrent protection. The power supply also has a type of reinforced insulation tested at 3,500V DC for 60 seconds. The input frequency of the 1756-PB72 power supply is from 47-63 Hz. The dimensions of the 1756-PB72 are 140 x 112 x 145 mm (5.51 x 4.41 x 5.71 inches). The weight of this power supply is around 0.95 kg (2.10 lb). It can operate at a relative humidity of 5-95% non-condensing. The operational vibration of this power supply is 2 G at 10-500 Hz. The operating shock and the nonoperating shock of this power supply are 30 G and 50 G respectively. The 1756-PB72 has an operating temperature from 0-60 °. Celsius (32-140 deg. Fahrenheit) and the non-operating temperature of this power supply is -40-85 deg. Celsius (-40-185 °. Fahrenheit). The surge transient immunity of the 1756-PB72 power supply is +/- 1 kV line-line (DM) and +/- 2 kV line-earth (CM) on signal ports. The conducted RF immunity of this power supply is 10 Vrms with 1 kHz sine-wave 80% AM from 150 kHz to 80 MHz. The EFT/B immunity of the 1756-PB72 is +/- 4 kV at 5 kHz on signal ports. The 1756-PB72 is not intended to be used in a residential neighborhood and may not provide adequate protection against radio communication services in such an environment. The ControlLogix module with part number 1756-PB72 is a ControlLogix Power Supply. This Power Supply is used to provide power to the backplane which is being distributed across the ControlLogix chassis. It is compatible for installation to any Series A, B and C ControlLogix chassis.

The 1756-PB72 requires a nominal input supply of 24VDC. Once power supply is provided, the module can provide output Currents of 4A at 3.3V; 10A at 5.1V and 2.8 A at 24V. The Power supply module’s installation location is located at the leftmost part of the chassis. Any ControlLogix chassis is provided with Power Supply insertion slot which does not take up any slot in the module. This power supply module is installed along with the chassis directly on the mounting plate, fixed in position by the provided mounting holes. As the chassis and this power supply module directly contacts the mounting plate, it is highly recommended that the ground terminals of the chassis and the power supply are properly connected. As this is a DC power supply, wire terminal is already provided with the unit. This terminal is accessible once the cover door is popped-out. The terminals have clear markings such as DC+ for the positive supply and DC- for the negative supply return. The protective earth is recommended for attaching to the chassis ground or ground bus. This power supply is provided with a simple status indicator to visually report the operation of the module. It has a single LED light installed at the upper right section of the module.

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