NOTE: Routers configured with DC power supplies are shipped with a blank
panel installed over the power distribution modules. Routers configured with
AC power supplies have no blank panel.
Related
Documentation
MX480 AC Power Supply Description on page 100•
• MX480 DC Power Supply Description on page 102
• Connecting Power to an AC-Powered MX480 Router with Normal-Capacity Power
Supplies on page 219
• Connecting Power to a DC-Powered MX480 Router with Normal Capacity Power
Supplies on page 221
• Replacing an MX480 AC Power Supply on page 367
• MX480 Chassis Grounding Specifications on page 127
• MX480 Router Grounding Cable Lug Specifications
MX480 AC Power Supply Description
Each AC power supply weighs approximately 5.0 lb (2.3 kg) and consists of one AC
appliance inlet, an AC input switch, a fan, and LEDs to monitor the status of the power
supply. Figure 33 on page 100 shows the power supply. For existing power supplies, each
inlet requires a dedicated AC power feed and a dedicated 15 A (250 VAC) circuit breaker.
For high-capacity power supplies, each inlet requires a dedicated AC power feed and a
dedicated 16.0 A @ 100 VAC or 16.0 A @ 200 VAC circuit breaker, or as required by local
code.
The maximum inrush current for a high-capacity AC power supply is 49A at 264VAC.
Figure 33: AC Power Supply
Copyright © 2017, Juniper Networks, Inc.100
MX480 3D Universal Edge Router Hardware Guide
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