I Need link regarding 4507R Including power(Power suply) calculation
Also check this link for power supply troubleshooting
For 4507R specification
DC Power Requirements and Heat Dissipation Specifications
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In addition to Ankur's post, make sure that you select the redundant Sup's option under the redundant Sup option. If you need the calculation for POE on the switch, please include the correct module number on the slot and also select the exact product number like Ip phone/Wirless AP on the module to get the proper calculation done.
Make sure that you also include your future growth into the calculation. Sometimes taking the wrong device count for POE doesnt give you correct part number of the PS for future growth.