Application Guide

System Application Guide SAG582140001
Spec. No. 582140001 (Model 801
NLDB, 801NLEB, 801NL-B) Issue AN, June 4, 2014
Page 25 of 115
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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.
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