Auxiliary Switch
A three-stage auxiliary switch can be provided as an
accessory. Each stage has two independent contacts
that permit any desired combination of “a” (follow state
of recloser contacts) and “b” (opposite recloser contacts)
positions. The switch contacts are insulated for 600 V and
have a continuous current rating of 10 A. Their interrupting
ratings are shown in Table 10.
Terminals
The standard terminal is an eyebolt, 1/0—500 mcm (630
A). Eyebolt, 4/0—1000 mcm (800 A), 2-hole and 4-hole
flat- pad terminals, and stud-type terminals are available as
an accessory (Figure 22).
The eyebolt, flat-pad, and stud terminals are made of cop-
per alloys. Cooper Power Systems recommends terminal
connection to copper wires to optimize the electrical con-
nection. Aluminum cables may produce aluminum oxide
sufficient to compromise the electrical connections.
Anti-oxide coatings for temporary protection of wire-
brushed, aluminum cable connections to flat-pad or stud
terminals must be maintained at intervals determined by
the customer based on load current, climate, and other
installation conditions.
Eyebolt terminals are recommended for copper conduc-
tors only.
S280-42-1
19
!
SAFETY
NOW
!
SAFETY
FIRST
!
SAFETY
FOR YOUR SAKE
!
SAFETY
MAKES SENSE
!
SAFETY
USE IT
!
SAFETY
FOR LIFE
ACCESSORIES
TABLE 10
Auxiliary Switch Interrupting Ratings
Non- Non-
Inductive Inductive Inductive Inductive
ac ac dc dc
Volts (A) (A) (A) (A)
24 — — 15.0 20.0
48 — — 7.5 10.0
120 60 80 — —
125 — — 1.5 2.0
240 30 60 — —
250 — — 0.45 0.5
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