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3U PDU Docs
The Operating Guide covers safety guidance, model specifications, and details of the equipment’s physical controls.
The serial number is located on silver labels on the side or bottom of the PDU.
If this has been damaged or worn off, the serial number is also located inside the PDU. Opening the PDU may void the warranty, and may involve significant hazardous risk from electrical shock.
Consult the Operating Guide, and contact the factory before you open the PDU.