Vertiv™ NetSure™ +24 VDC to -48 VDC Converter System Installation and User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
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Replacing a TPS/TLS Fuse
NOTE!
Refer to Figure 2.5 as this procedure is performed.
Procedure
1.
Open the shelf’s front door.
2.
Remove the fuse carrier from the mounted fuseholder body by pulling it straight out.
3.
Remove the open fuse from the fuse carrier and replace it with the same type and rating, or equivalent.
4.
Replace the alarm fuse located in the front of the fuse carrier with the same type and rating, or equivalent. Ensure that a
plastic safety cover is installed on the alarm fuse.
5.
Push the fuse carrier securely back into the mounted fuseholder body. Note that a polarizing key on the bottom of the
carrier prevents the carrier from being inserted upside down.
6.
Verify there are no alarms active.
7.
Close the shelf’s front door.
Replacing a Bullet Nose Circuit Breaker or Fuseholder
NOTE!
Refer to Figure 2.5 as this procedure is performed.
Procedure
1.
Open the shelf’s front door.
2.
Circuit Breaker: Operate a defective circuit breaker to the OFF position.
3.
Fuseholder: Remove the fuse carrier from the mounted fuseholder body by pulling it straight out.
4.
Gently rock the defective circuit breaker or fuseholder up and down while pulling firmly outward until the circuit breaker or
fuseholder is free from the distribution row.
5.
Circuit Breaker: Ensure that the circuit breaker is in the OFF position, and is of the correct rating.
6.
Orient the distribution device as shown in Figure 2.5. Insert the terminals on the rear of the distribution device into their
corresponding sockets on the distribution row. Ensure the alarm contact on the back of the distribution device makes
contact with the alarm terminal on the mounting circuit card. Push distribution device in firmly until fully seated in the
distribution row.
7.
Circuit Breaker: Operate the replacement circuit breaker to the ON position.
8.
Fuseholder: Push the fuse carrier securely back into the mounted fuseholder body. Note that a polarizing key on the bottom
of the carrier prevents the carrier from being inserted upside down.
9.
Verify there are no alarms active.
10.
Close the shelf’s front door.
