1756-PA72 Allen Bradley PLC(12)

Brand：Allen Bradley
Model：1756-PA72

Inventory situation: Goods are available in stock.

Product Description

1756-PA72 Allen Bradley;ControlLogix PA72 Power Supply Module;1756-PA72 75W AC Power Supply Module;85-265VAC Wide Voltage Input Module;ControlLogix 24VDC 1.75A Output;Power Supply Compatible with 1756-A4/A7/A10 Chassis;3500 - volt DC isolated power module;

Specifications

Module size	14.50 cm × 11.20 cm × 14 cm.
Voltage range	85 - 265VAC
Frequency range	47 - 63Hz
Maximum inrush current	20A
Maximum output power	75W (in an environment of 0 - 60°C)
Power loss	85.3 BTU per hour
Operating temperature	0 - 60°C (32 - 140°F)

Product featuress

The Allen-Bradley 1756-PA72 is a Standard Power Supply that is primarily used to power the backplane of a 1756 ControlLogix chassis, allowing each module connected to the chassis to function. The 1756-PA72 is designed to accept an input voltage of 85-265 VAC and a frequency range of 47-63 Hz.

The 1756-PA72 is positioned at the left most location of the chassis. It has a dedicated slot assignment, outside the chassis and does not occupy a ControlLogix slot. It may be installed in many ControlLogix chassis, including 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17, whether Series A, B, or C.

This module, like the ControlLogix chassis, has an open-type enclosure and hence requires installation within an enclosure that protects the hardware from industrial pollutants and interferences. The 1756-PA72 may not be utilized in redundant power supply applications, but it can be used in distributed I/O architecture.

FAQ

Q: What protective measures does the 1756-PA72 power module have for input power phase loss?

A: The Allen-Bradley 1756-PA72 power module has an alarm mechanism that activates when it detects a phase loss in the input power. To prevent abnormal output voltage or current due to phase loss, which could damage other devices connected to the power module, the 1756-PA72 may limit or protect its output upon detecting a phase loss.

Q: What other protective mechanisms does the 1756-PA72 power module have besides input power phase loss protection?

A: In addition to the input power phase loss protection, the Allen-Bradley 1756-PA72 power module features overvoltage protection, undervoltage protection, overcurrent protection, short-circuit protection, and over-temperature protection.

Q: Under what conditions might the over-temperature protection function of the 1756-PA72 power module not be triggered?

A: The over-temperature protection function of the 1756-PA72 power module may not be triggered under conditions such as the temperature not reaching the threshold, a temperature sensor failure, or external interference.

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