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 24
Revision T, September 28, 2022
Distribution Devices
See
Distribution Device and Load Lug Locations
at the beginning of this section for illustrations of distribution device and
load lug mounting locations.
218 Circuit Breaker Assemblies
Features
♦
Each circuit breaker assembly is equipped with a shunt for MCA load current measurements.
♦
Bolts into bay's distribution device mounting positions.
♦
Load lug busbars and adapter plates provide 3/8" clearance holes on 1" centers for installation of customer provided two-
hole lugs.
Restrictions
Load should not exceed 80% of device rating.
Refer to Table 1 for required distribution bus mounting positions.
Each distribution bus is divided into half. Each half MUST be populated with distribution devices as shown in the illustrations
at the beginning of this section, without skipping any distribution device mounting positions within each half.
Four (4) position devices can only be installed in the 1st four or last four positions within each half of a distribution bus. This
is because the lug adapter plate for four (4) position devices can only be installed in positions starting with the load busbar
tops even with each other (not staggered).
Divide distribution equally between rows.
Refer to the illustrations in this section for lug and wire size restrictions.
Load return leads are terminated outside the bay to customer provided return busbars.
Ordering Notes
1)
Order circuit breaker assemblies and load lug adapter kits per Table 1. Load lug adapter kits also contain the necessary
hardware to mount the circuit breakers. For 1-pole circuit breakers, also order circuit breaker hardware kit P/N 558709.
This hardware is used to mount the circuit breaker.
2)
See Table 10 for recommended load distribution wire sizes and lugs.
