T640 Three-Phase Delta And Wye Ac Power Supply Description; Three-Phase Delta Ac Power Supply; Figure 40: Three-Phase Delta Ac Power Supply - Juniper T640 Hardware Manual

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T640 Three-Phase Delta and Wye AC Power Supply Description

Copyright © 2013, Juniper Networks, Inc.
T640 Six-Input DC Power Supply Description on page 69
Maintaining the T640 Power Supplies on page 194
T640 LED Overview on page 200
Troubleshooting the T640 Power System on page 207
Replacing a T640 Six-Input DC Power Supply on page 329
Three-Phase Delta AC Power Supply on page 71
Three-Phase Wye AC Power Supply on page 72
AC Power Supply Load Sharing and Fault Tolerance on page 73

Three-Phase Delta AC Power Supply

Each three-phase delta AC power supply weighs approximately 31.0 lb (14.06 kg). A
metal wiring compartment contains the AC terminal block and ground labeled
AC terminal block consists of three input terminals labeled
right. The power switch provides power to the router. Each power supply's cooling system
consists of two fans, a front air filter, and a side air filter. LEDs provide the status of the
power supply. Figure 40 on page 71

Figure 40: Three-Phase Delta AC Power Supply

Figure 41 on page 72 shows the three-phase delta AC power supply connections.
Chapter 3: T640 Router Hardware Component Overview
,
L1
shows the three-phase delta AC power supply.
. The
GND
, and , from left to
L2 L3
71