Juniper PTX5000 Hardware Manual page 58

PTX5000 Normal Capacity Delta and Wye AC PDUs
Normal Capacity Three-Phase Delta AC PDU Components
Each normal-capacity three-phase delta AC PDU has the following components (see
42):
• A metal retaining bracket located on the lower right to connect the delta AC power cord to the PDU.
• A metal wiring compartment that contains the AC input terminal block and ground. The AC terminal
block consists of three input terminals labeled L1, L2, and L3.
• One 60-A circuit breaker
• A power OUTPUT switch that provides power to the PSMs.
• LEDs to monitor the status of the PDU.
• Twenty-one monitored electronic fuses for the fan trays, Control Boards, and FPCs.
NOTE: There are no mechanical fuses in the PDU to be replaced. For output voltage, current
protection is provided by electronic fuses, hot-swap circuits, or ORing circuit. Electronic fuses
and hot-swap circuits also provide current limitation.
Figure 18 on page
40