Emerson 710NPBA Power Supply User Manual


 
IM581127000 Installation Instructions
Issue AB, March 22, 2012 Spec. No. 581127000 (Model 710NPBA)
Page 16 Chapter 2. Installing the System
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INSTALLING CIRCUIT BREAKERS AND FUSES
Circuit breakers and/or fuses may have been factory installed for you.
If so, verify their positions and sizes.
Installing Bullet Nose Type Fuseholders and TPS/TLS Fuses
Caution: A circuit breaker or fuse with a rating of 100A or greater SHALL HAVE an
empty mounting position between it and any other overcurrent protective
device.
Refer to the following procedure and install bullet nose type fuseholders and
appropriately sized TPS/TLS fuses into the proper mounting positions in the distribution
cabinet.
Procedure
Note: Refer to Figure 2-9 as this procedure is performed.
1) Open the distribution cabinet’s front door by turning the latch in the
counterclockwise position.
2) Orient the fuseholder as shown in Figure 2-9. Insert the terminals on the rear of
the fuseholder into their corresponding sockets on the distribution panel. Ensure
the alarm contact on the back of the fuseholder makes contact with the alarm
terminal on the mounting circuit card. Push fuseholder in firmly until fully seated
in the distribution panel.
3) When all fuseholders are installed, install an appropriately sized TPS/TLS fuse in
each. To do this, remove the fuse carrier from the mounted fuseholder body by
pulling it straight out. Slide the fuse in place between the contacts of the fuse
carrier. When done, push the fuse carrier back into the fuseholder body. Note
that a polarizing key on the bottom of the carrier prevents the carrier from being
inserted upside down.
4) Verify that an 18/100 ampere alarm fuse is present in each fuseholder and that a
plastic safety cover is installed on this fuse.
5) Record all fuse sizes on the label provided on the shield.
6) Close the distribution cabinet's front door. Turn the latch clockwise to secure the
door.