
Table 41: Power Supply Electrical Specifications (continued)
SpecificationItem
~98%Efficiency
NOTE: This value is at full
load and nominal voltage.
40 AInternal Circuit Breaker
High-Capacity Power Supplies
70 A (DIP=1)60 A (DIP=0)Maximum Input Current
2600 W2400 WMaximum output power
54.2 A @ -48 VDC normal operating
voltage
50 A @ -48 VDC normal operating
voltage
DC input current rating
Operating Range: –40.5 VDC to –72 VDC
Nominal: –48 VDC
DC input voltage
~98%Efficiency
NOTE: This value is at full
load and nominal voltage.
Table 42: Power System Specifications
High-CapacityNormal-CapacityItem
2+22+2Redundancy
70 A (DIP=1)60 A (DIP=0)1600 WOutput power
(maximum) per
supply
2600 W2400 W
5200 W4800 W3200 WOutput power
(maximum) per
system
Related
Documentation
Calculating Power Requirements for MX480 Routers on page 285•
• DC Power Circuit Breaker Requirements for the MX480 Router on page 302
DC Power Circuit Breaker Requirements for the MX480 Router
Each DC power supply has a single DC input (–48 VDC and return) that requires a
dedicated circuit breaker. If you plan to operate a maximally configured DC-powered
router with normal-capacity power supplies, we recommend that you use a dedicated
Copyright © 2013, Juniper Networks, Inc.302
MX480 3D Universal Edge Router Hardware Guide
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