ALLEN BRADLEY 1746-P3 POWER SUPPLY

A SLC 500 power supply, the Allen-Bradley 1746-P3. In this case, this is a DC Power Supply that operates on an input voltage range of 19.2 - 28.8 Volts DC. In terms of its internal current capacity, it can deliver 3.6 A of current at 5VDC and 0.87 A of current at 24VDC. The backplane supplies power to the SLC 500 modules attached to the chassis, which in turn are powered by the backplane.

• Part Number/Catalog No.:

  • This alphanumeric identifier uniquely identifies the power supply module in the Allen-Bradley product catalog, simplifying ordering and inventory management.

• Brand:

  • Allen-Bradley, a well-known brand in industrial automation, ensures the reliability and quality of the power supply module. The brand is synonymous with durable and high-performance industrial components.

• Series:

  • The power supply module belongs to the SLC 500 series, a family of programmable logic controllers (PLCs) renowned for their flexibility and reliability in industrial control applications.

• Module Type:

  • As a power supply module, its primary function is to provide stable and reliable power to other modules within the control system, ensuring consistent operation of connected devices.

• Isolation Voltage:

  • The module features an isolation voltage of 600V AC RMS for 1 second or more (applicable to version B or later), highlighting its ability to protect connected equipment from electrical interference and ensuring safe operation.

• Inrush Current:

  • During the initial power-up, the module can handle an inrush current of up to 20A, indicating its capability to manage the surge of current when the power is first applied.

• Typical Line Power Requirement:

  • The power supply module typically requires 90 Volt-Amperes to operate, providing insight into its power consumption under normal operating conditions.

• Nominal Input Voltage:

  • The module operates at a nominal input voltage of 24VDC, a standard voltage level commonly used in industrial control systems.

Current Capacity:

• • The module can deliver a continuous current of 3.6A at 5V DC, allowing it to power devices operating at this voltage level.

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  • Similarly, it can supply a continuous current of 0.87A at 24V DC, meeting the power requirements of devices operating at this voltage.

• Hold-Up Time:

  • The hold-up time, specified at 5ms under full load and 1000ms under no load conditions, indicates the module's ability to maintain output power during brief power interruptions.

• Fuse Protection:

  • The module incorporates fuse protection, with the recommended fuse being the 1746-F3 or an equivalent model, enhancing safety by preventing damage from electrical faults.

• Temperature, Ambient Operating:

  • The module is designed to operate in ambient temperatures ranging from 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit), ensuring reliable performance in diverse industrial environments.

• Input Voltage Range:

  • The module accepts input voltages within the range of 19.2 to 28.8VDC, providing flexibility in power supply options within this specified voltage range.

• Location:

  • The module is intended to be installed in the 1746 Chassis on the left side, contributing to ease of installation and integration within the control system.

• Current Capacity Deration:

  • Above 55 degrees Celsius (131 degrees Fahrenheit), the module's current capacity derates by 5%, emphasizing the importance of considering operating temperatures for optimal performance.

• Input Voltage:

  • The module operates with a standard input voltage of 24 Volts DC, aligning with common voltage standards in industrial applications.

• Input Power:

  • The module consumes 61 Watts of power during operation, providing information on its power efficiency and contributing to overall system power considerations.

Backplane Current:

• • On the 5V DC backplane, the module draws a current of 3.6 Amps, contributing to efficient distribution of power within the control system.

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  • On the 24V DC backplane, the module draws a current of 0.87 Amps, indicating its power requirements for proper functioning.

• Frequency:

  • The module operates on a direct current (DC) frequency, ensuring compatibility with the typical power sources in industrial settings.

• Weight:

  • Weighing 2.5 pounds (1.1 kilograms), the module has a relatively lightweight design, facilitating easy handling and installation.

• Dimensions:

  • With dimensions of 5.5 x 2.9 x 5.7 inches, the module has a compact form factor, enabling efficient use of space within the control system enclosure.

• Operating Temperature:

  • The recommended operating temperature range of 0 to 60 degrees Celsius ensures optimal performance and reliability in various industrial environments.