Vertiv™ NetSure™ 5100 Series -48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
44
Replacing a Bullet Nose Circuit Breaker
Procedure
NOTE!
Refer to Figure 5.3 as this procedure is performed.
1.
Operate the defective circuit breaker to the OFF position.
2.
Gently rock the defective circuit breaker up and down while pulling firmly outward until the breaker is free from the
distribution panel.
3.
Ensure that the replacement circuit breaker is in the OFF position, and is of the correct rating.
4.
Orient the circuit breaker as shown in Figure 5.3. Insert the terminals on the rear of the circuit breaker into their
corresponding sockets on the distribution panel. Ensure the alarm contact on the back of the circuit breaker makes contact
with the alarm terminal on the spring strip. Push distribution device in firmly until fully seated in the distribution panel.
5.
Operate the replacement circuit breaker to the ON position.
6.
Verify no Circuit Breaker Alarms are active.
Figure 5.3
Replacing a Bullet Nose Circuit Breaker
Replacing a GMT Distribution Fuse in a List KG
Procedure
1.
Refer to Figure 5.4 and replace the fuse. Ensure a safety fuse cover is installed on the replacement fuse, as shown in
Figure 5.1.
2.
Verify no Fuse Alarms are active.
Insert these terminals
into corresponding sockets
on distribution panel.
Longer Side
to the Bottom
Shorter Side
to the Top
Lettering on
handle must be
right side up.
Turn off
before installing.
