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TYPES RS & RSN RELAYS
The plck-up
and
operating
elements
are
given
under "Adjustments
Maintenance".
INSTALLATION
The
relays
should be mounted on switchboard
panels or their equivalent in a location
from
dirt,
moisture,
heat.
Mount the
relay vertically by means of
the
two mounting studs for the standard cases
and the type FT projection case or by means of
the four
mounting holes on the flange for the
semi-flush
type FT case.
or the mounting
screws
grounding the relay.
may
tions
be made
direct to the terminals by
means of
screws
for steel
to
terminal studs furnished with the relay for
ebony-asbestos
or slate panel
terminal
studs
may be
serted
by
locking two nuts on the
then turning the proper nut with a wrench.
The carrier relaying
with the
carrier
order)
tne
for details
oc
externa�
these relays.
ADJUSTMENTS AND MAINTENANCE
adjustments
The prope�
r,j_ t
n
i
operation
s rela_y Lave been made ac the
!'LOt
factor;v
;::: , hould
axi�.'
receipt
l1ave
be"'· r ,
changed,
-r.ne relay taken apart for
j_f' it 1.G
rscairs,
desired
2�
.
,Justmer, t
regt�lar :nsin�enar.::'E-
.:·
::!t
instruct·Io�s
below sh���d
All contacts
should
purr=s� .
mended for
this
ma�erial
for
cleaning
o�
�ended,
because
tne
in t.c1" face
o:nall particles
d
impairing th?
.
thus
.
:-::.!'ectional Auxiliary Elements
Tne
two
contactor
adj·�statle
plunger
nave
4
values of these
and
free
excessive vibration and
Either of the studs
may
be
utilized
for
The electrical
connec
panel mounting or
mounting.
The
easily removed or in
studs and
d-e
(
schematic
supplied
should be consulted
connections
of
to insure
correct
be disturbed
after
to
ad
check th�
per:..ods.
the
be follawed.
perio��ca:l� c:eanec
oe
The
��
abras·v�
Uf�
c��tg�t: i:
DC:
re2��-
dan�c-
tne :c ··fr siJ.·;�·
::->''
'::mtac: .
CSP a �j
2SG,
swi�c�es,
travel.
Adjus:
the
two nuts
on
the bottom of the fixed shaft so
that the
plunger
has
lower contacts
make.
l/64"
travel
in the opposite direction
the upper contacts make.
by
screwing
down the set screw
switch
until the upper contacts are
to make as the
plunger
Then back off
this screw one turn and lock in
place.
Each
contactor
switch
tapped
resistor
in
series with it,
pick up
positively
when
voltage
is
applied across the
section of the resistor.
The
minimum pick-up of the coil and its re
40
sistor is
volts for the
100
250
volts for
volt relay.
have an intermittent rating,
energized for more than a few seconds.
Polar heceiver Element
Back
off contact screws so that they do not
make contact.
Screw
magnetic shunts into the
(5
all-out position
or
)
ing.
The
armature
should
whichever
side it is pushed with this adjust
ment.
Contact Adjustment
Push the armature
to
both left hand contacts until they barely make
a
light
circuit.
At
stationary
contacts an additional
fcllcw.
Then
push the armature to the
a nc
ad,just
the top and bottom right hand con
for
stopR
three turns
ta�:
th�
center
contact
for
Arp l:,
l2�
D.C. to
volts
r:·�· �s·:. >.:c:lLE' D�C. to
�he
:he RRT
coil,
operating
in
2�rr�er
resistor
series,
in
shown
the schematic
l/8"
travel
after the
The plunger should have
after
This is accomplished
on top of the
just able
hits
the upper stop.
has a section of
a
and will
rated
trip circuit
coil
and its
125
volt relays and
These
elements
and should not be
6
screw threads
show
remain
against
the
left,
and adjust
this
point,
give both
three turn
right
follow,
and then
three
and one-half
125
the
volt relay
250 V:)l::
relay across
coil
resister,
and the
with polarity as
diagram.
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