Application Guide

Installation Instructions Section 5876
Spec. No. 582140000 (Models 802
NLDB, 802NLEB and 802NL-B) Issue AT, April 26, 2013
Chapter 3. Installing Distribution Devices and MCA/LMS Circuit Cards Page 3-1
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CHAPTER 3
INSTALLING DISTRIBUTION DEVICES AND MCA/LMS
CIRCUIT CARDS
TABLE OF CONTENTS
Installing Distribution Fuses and Circuit Breakers ........................................................... 3-1
Installing 218 Circuit Breakers, TPL Fuseholders, and Bullet Nose-Type
Device Mounting Assemblies into Power/Distribution Bays ..................................... 3-1
Installing 218 Circuit Breakers and TPL Fuseholders into Distribution Only
Bays .......................................................................................................................... 3-2
Installing TPL Fuses ................................................................................................. 3-2
Installing TLS/TPS Fuses ......................................................................................... 3-3
Installing Bullet Nose-Type Circuit Breakers ............................................................ 3-3
Installing an Optional Bullet Nose-Type 10-Position GMT Fuse Module.................. 3-3
Storing Spare Fuses ................................................................................................. 3-3
Recording Fuse and Circuit Breaker Sizes ............................................................... 3-3
Installing MCA and LMS Circuit Cards .......................................................................... 3-18
Circuit Card Handling .............................................................................................. 3-18
Identifying the Circuit Cards .................................................................................... 3-18
Installing LMS Circuit Cards .................................................................................... 3-18
Installing MCA Customer Alarm Relay Circuit Card(s) and MCA I/O Circuit
Card(s) .................................................................................................................... 3-18
INSTALLING DISTRIBUTION FUSES AND CIRCUIT BREAKERS
Installing 218 Circuit Breakers, TPL Fuseholders, and Bullet Nose-Type
Device Mounting Assemblies into Power/Distribution Bays
Note: Each distribution bus is divided into half. Each half MUST be populated with
distribution devices from left-to-right, without skipping any distribution device
mounting positions within each half.
Procedure
1) Orient the device over its mounting location as shown in Figure 3-1. Slide the
device over the top and bottom mounting studs, and plug the device into the
mating connector located on the bay. Ensure correct alignment of the mating
pins as you plug the device in.
2) Place a Belleville lock washer and 3/8-16 nut on each bottom stud.
Hand-tighten.
3) Place a flat washer, lock washer, and 1/4-20 nut on each top stud.
Hand-tighten.
4) Torque the bottom 3/8-16 nuts to 180 in-lbs.
5) Torque the top 1/4-20 nuts to 84 in-lbs.
6) Install Load Lug Adapter plates as required. Refer to Figure 3-2 for location and
the numbering scheme for the load lug mounting locations. Refer to Figure 3-5