GE Power Break II User manual

-~ -
GEH-62798
Power Break@ II Circuit Breaker
Accessories
Key Interlock Mounting Provision
Introduction
The Kev Interlock Mountirnr Provision. shown in FiQUre
1, can
1
be installed on 800~000 amp.ere frame P~wer
Break® II circuit breakers. A single lock body with one
to four key-lock cylinders can be installed. The GE
catalog number is SPK4.
The key lock must have a zero extension when the bolt is
withdrawn with 0.75-inch extension when the bolt is
extended. The lock may be up to 1.50 inch wide.
Catalog numbers for suitable locks from ABB-Kirk® and
Superior Interlock Co. are listed in Table 1.
Figure 1. The Key Interlock mounted on a circuit breaker.
# ABB-Kirk® Superior
Approx.
Locks Cat.
No.
Cat. No. Lock Length
1
KFNOOOOI
1 S105827Y 2.38"
2 KFN00002 1 S105828Y 3.38"
3
KFN00003_
1
Sl05829Y
4.38"
4 \ KFN00004_ 1 I Sl05827-4Y I 5.48"
1
Final digit may be 0, 1, 2, or 3 depending on key removable positions.
Table 1. Catalog numbers of suitable Key Interlock models.
Operation
The Kev Interlock prevents the breaker from closing- bv
holding the padlo~k hasp extended, thus keeping'"' th~
trip latch in the tripped position. A secondary padlock
lever is included with the Key Interlock, since the Key
Interlock blocks easy access to the standard padlock
hasp. To operate, use the following procedure:
1. Trip the breaker (press the OFF button).
2. Grasp the ring to pull out the nylon-coated
padlock hasp. Note that if the breaker contacts are
closed, the padlock hasp will not pull out. Do not
exceed 10 lb pulling force on the ring.
3. Turn the key, securing the padlock hasp in the
extended position, as illustrated in Figure 2. The
breaker cannot be closed until the Key Interlock is
disengaged.
4. Rotate the secondary padlock lever out and attach
padlocks, if desired, as illustrated in Figure 3.
r:A llTTnN~ RPpP~tPrl ~ttPmpt~ tn cln~P ~ lnrkPrl-ont
circuit breaker will damage the breaker mechanism.
ATTENTION: Les tentatives a maintes fermer un
disjoncteur verrouille en pos1t1on "ouvert"
endommageront le mecanisme de disjoncteur.
Figure 2. View of the breaker, showing the padlock hasp held
extended by the Key interiock.
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Figure 3, The Key Interlock with a padlock attached.
Installation
WARNING: Before instaiiing any accessories, turn the
breaker off, disconnect it from all voltage sources, and
discharge the closing springs.
AVERTJSSEMENT: Avant d1 instaiier tout accessoire,
mettre le disjoncteur en position OFF, le rlt.ronnPrtPr
de toute tension d'alimentation, et decharger les
ressorts d' armemen t.
Use the following procedure to install the Key
Interlock Mounting Provision. Figure 4 is an exploded
view of the installation.
1. If a trim plate is installed. on the ?reaker,
ioosen the wur screws secunng the tnm-plate
assembly and remove the trim plate from the
breaker.
2. Loosen the four screws at the corners of the
breaker cover. Remove the cover from the
breaker face.
3. Drill four 15164-inch (0.234 inch) holes ihrough
ihe cover, as shown in Figure 5.
Figure 5. The inside of the breaker cover, showing the mounting
holes being drilled.
4. Mount the lock mounting plate to the cover, as
shown in Figure 6, with four #8-32 flathead
screws and lock washers.
Figure 6. The inside of the breaker cover, showing the screws being
attached to the Key Interlock mounting plate.
5. .A.ttach the Key Interlock bodv to the mountine:
plate with two 1 14-20 screws and lock washers, a~
shown in Figure 7.
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Figure 7. The Key Interlock body attached to the mounting plate.
6. For a single key lock, skip to Step 7. For two, three,
or four key locks, remove one, two, or three
knockouts, respectively. Place the cover face up on
a levei work surface. Hoid a large screw driver
'UPrttr~Jly, with thP ttp ~t thP rPntPr of thP l _4()..inrh
diameter knockout, and strike the end of the screw
driver to remove the knockout.
7. Mount the Key Interlock cover with two #8-32
screws
with integral lock washers.
8.
Pull the charging handle out once and ratchet it
to take the heavy closing-spring force off the
hanrlle. Holrl thP. hanrlle ont nearly perpendicular
to the breaker, then fit it through the handle slot
in the breaker cover.
9. Ensure that
the Key Interlock slide does not
project across the 5132 x i 2~2
11
siot in the cover, or
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.LI, ff~ ll.Ll,ic;.L.Lic;.L,c; TI'.LI..L.L l,ll'<;, .L.LJ.LVU-'-'U'C&l.'<;,'L& ... Q.~U''-- .u.u.,.t'
as the cover is installed. damal!inl?' the Kev
Interlock slide. H necessary; turn th; k;y to retra~t
the lock bolt and slide.
10. To prevent damage to the breaker cover, check
11
.L.L•
12.
LI_ _ r _ n __ ..! _ -·
Ule IOllUWlUg:
e Tl...- -1, .. -·-, .. - ----"""-~ ..,1-- .. TLI; .£'I ,,..~ .... +~~~,t ;,.....
.1 uc; d.1UU111.lU.ll1 d.\...l....C;:!1;:)Vl Y ;:,1c;c;vc; .I.~ I....C.I.J.LC1 \...U J.U
its window.
•
The Trip Unit flange projects through its
window.
• The gray-painted wire channel is completely
inside the cover.
•
The cover is inboard of the trim flanges of
both terminal blocks.
Slide the cover completely dmvn on the hrP'..'.11.Pr.
Install the four cover screws and torque them to
15 in-lb.
Attach the split ring through the lower %2''-
diameter hole in the nylon-coated hasp, as shuwn
in Figure 2. (Omit this step if a Door Interlock,
Cat. No. SPDIL, is installed.)
CAUTION: Do not attempt to install the breaker cover if
the lock bolt is extended: as shown in Figure 7. Turn the
key so that the lock boit retracts and disengages the
interlock slide, to prevent the damage described in step
9.
ATTENTION: Il ne faut pas essayer d'installer le
couverde du disjoncteur si ie pene est tendu, tel que
m.ontre ala Figt1re 7. Tourner la c!e de maniere a ce
que le pene se retracte et desengage la coulisse de
l' enclenchement afin de prevenir le dommage decrit a
l'etape 9.
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These instructions do not cover all details or variations in equipment nor do they pro\ide for eveP; possible
contingency that may be met in connection with installation, operation, or maintenance. Should further
information be desired or should particular problems arise that are not covered sufficiently for the
purchaser's purposes, the matter should be referred to the GE Company.
GE Electrical Distribution & Control
General Electric Company
41 Woodford Ave., Plainville, CT 06062
~r:u a?7DD rv,oa
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