Vertiv
™
NetSure
™
-48 VDC Power System
System Application Guide
Spec. No: 582140001
Proprietary and Confidential © 2022 Vertiv Group Corp.
SAG582140001
Model No: 801
NLDB
, 801
NLEB
, 801
NL
-
B
Page 31
Revision T, September 28, 2022
Bullet Nose-Type Circuit Breakers and Bullet Nose-Type Fuseholders e/w TLS/TPS Fuses
Features
♦
Installs in the optional
Fuse/Circuit Breaker Panel.
♦
Load lugs are connected to busbars provided on the List C Fuse/Circuit Breaker Panel. These busbars provide 1/4-20
threaded holes on 5/8" centers for installation of customer provided two-hole lugs. Load return leads are terminated
outside the bay to customer provided return busbars.
♦
Each circuit breaker (as listed in Table 3 and Table 4) plugs into one, two, or three mounting position(s).
♦
A single fuseholder provides for installation of a 3 to 100 ampere Bussmann TPS-type or Littelfuse TLS-type fuse (as
listed in Table 5). This fuseholder plugs into a single mounting position. This fuseholder provides a GMT-A alarm type
fuse, which operates open to provide an alarm indication if the associated distribution fuse opens.
Restrictions
Load should not exceed 80% of device rating.
Caution: An overcurrent protective device with a rating of 150 amperes or greater SHALL HAVE an empty mounting
position between it and any other overcurrent protective device within the List C Fuse/Circuit Breaker Panel.
Maximum size of wire to be connected to a single lug position is 2 AWG.
Maximum lug width is 0.610.
Customer must provide lug mounting bolts and additional hardware.
Bolt length: 3/4”.
Load return leads are terminated outside the bay to customer provided return busbars.
Ordering Notes
1)
Order circuit breakers per Table 3 and Table 4.
2)
Order fuses per Table 5. For each fuse ordered, also order one (1) P/N 117201 bullet nose type fuseholder.
3)
See Table 9 for recommended load distribution wire sizes and lugs.
