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RTE® EL-BAY-O-NET FUSE
Re-Fusing instRuctions
MN132024EN November 2016
Product information
Introduction
Eaton’s Cooper Power series Bay-O-Net fuse is designed for
use in padmounted or subsurface distribution transformers
filled with transformer oil or approved equivalent.
Read this manual first
Eaton’s Cooper Power series EL Bay-O-Net is designed
to be operated in accordance with normal safe operating
procedures. These instructions are not intended to
supersede or replace existing safety and operating
procedures.
Handling and storage
The fuse should be installed and serviced only by personnel
familiar with good safety practice and the handling of high
voltage electrical equipment.
IMPORTANT
Accompanying decals should be prominently displayed
at or near location of Bay-O-Net as a warning to service
personnel.
Failure to do so will constitute a waiver of all warranty and
indemnity obligations which may be attributable to Eaton.
Installation
The fuse assembly is mounted through the transformer
tank wall for sidewall mount. A 4-5/8” hole with keyed slot
for use in sidewall underoil application is gasketed on the
inside of the tank with an external locking nut. All inner
gasket surfaces of the tank must be free of burrs. The
fuse is designed for use in operating temperature (in oil) at
140°C. If the fuse is installed, the plastic follower assembly
supplied with the housing should be installed on lower
end of fuse. Otherwise, the follower assembly should be
attached to the Bay-O-Net operating handle so the user can
assemble it to fuse.
Re-fusing instructions
1. Release internal pressure with pressure relief valve if
available.
Figure 1 . Release Internal Pressure
2. Using a shotgun type switchstick or hookstick, hook
the eye of the Bay-O-Net Assembly and pull upward
and outward (refer to Figure 1) to release the locking
mechanism. Rotate the assembly 180° clockwise
with the fuse still in place. The locking hook should be
pointing upward. Pause to be sure all internal pressure
has been relieved.
3. With your head turned to one side, pull the fuse
outward 6” to break the load (refer to Figure 2).
Figure 2 . Pull the fuse upward and outward
Use Shotgun Stick
Use Hookstick
