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Allen Bradley 8520 CNC Controllers 8520-PS2B

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8520-PS2B

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The 8520-PS2B model from Allen Bradley is a multi-output switched-mode power supply tailored for CNC control applications. This power supply accepts an AC input range of 90 to 265 VAC and operates effectively at frequencies from 47 to 63 Hz, delivering reliable output for various machinery.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 8520-PS2B

ManufacturerAllen Bradley
Product TypeMulti-output switched-mode power supply
Product Line8520 CNC Controllers
Part Number8520-PS2B
Weight7.00 lbs (3.18 kg)
AC Input Range90-265 VAC
AC Input Frequency47-63 Hz
Main DC Output535 VDC
Main DC Current4 A at 50 °C
Secondary DC Output24 VDC
Secondary DC Current10 A
Power TopologyRegulated flyback
Efficiency>80 %
Hold-up Time6 ms
Input Fuse8 A at 250 VAC
Inrush Current LimitingYes
Operating Temperature0 to 50 °C
Humidity (non-condensing)5 to 95 %
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The Allen Bradley 8520-PS2B is an advanced multi-output switched-mode power supply that serves as a vital component in CNC controllers. Capable of handling an AC input range between 90 and 265 VAC, this unit is suitable for a variety of electrical environments. It functions effectively with an input frequency that ranges from 47 to 63 Hz and provides a main DC output of 535 VDC. The unit can deliver up to 4 A of current at a temperature of 50 °C, ensuring that it can meet high-demand power requirements.

In addition to the primary output, the 8520-PS2B features a secondary DC output rated at 24 VDC, capable of providing a current of up to 10 A. This ensures ample power for additional components or auxiliary devices. The design incorporates a regulated flyback power topology to maintain stable output voltage under varying loads. With an efficiency of over 80 %, the power supply optimally converts input electricity into usable DC power while minimizing waste heat.

The hold-up time for this model is rated at 6 ms, which allows for temporary power interruptions without disrupting device operation. Protection features include an 8 A input fuse rated for 250 VAC, providing safety against overloads. Additionally, the device has inrush current limiting capabilities to protect circuits during startup. The operating temperature range extends from 0 to 50 °C, accommodating standard industrial conditions, while the non-condensing humidity range spans from 5 to 95 %. Overall, the 8520-PS2B offers a reliable power solution essential for CNC machinery and precision manufacturing.