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The
r e l a y
equa t i o n
( 1 )
if t h e amb i e n t
- 2 0°C t o + 5 5°C .
SURGE WITHSTAND CAPABILITY
The s e r e l a y s wi l l w i t h s t and ANSI C 3 7 . 9 0A- 1 9 7 4
i nco r r e c t ope r a t i on o r dama ge t o any compo ne n t .
POWER SUPPL Y
Mode l s
a r e
vol t s ) ,
1 1 0 vol t s D C
vo l t s ) .
The
powe r
i so l a t i o n
b e t w e e n
c i r cu i t r y of th e
of
1 2 5
vo l t s,
a n
c o n t r o l
vol t a g e
t e rm i na l s .
CONTACTS
The
t r i p
con ta c t s
du t y .
The i r
con t i nuou s
r a t i ng s a s l i s t ed i n Ta b l e II .
The MOB con t a c t s i n t ype SLY 8 1 B w i l l make a n d c a r r y con t i nu ou s l y
t h r e e ampe r e s ( 3 amps ) .
The i n t e r r upt i ng r a t i ng s of both t ype s of con t a c t s a r e
Tab l e II .
INTERRUPTING RATINGS IN AMPERES OF OUTPUT CONTACTS
VOLTAGE
INDUCTIVE tt
1 15 vol ts AC
230 vol ts AC
4
vol ts DC
8
125 vol ts DC
250 vol ts DC
tt
The i ndu c t i ve r a t i ng s a r e based on an L/R r a t1o of 0 . 0 4 s econd .
TARGET
A t a r ge t s ea l - i n un i t w i t h 0 . 6 and 2 ampe r e taps
t h e o u t p u t
con t a c t
t h e
s ame
t aps
1 8 .
The r a t i n g s of each of t h e s e t a r g e t s a r e g i ve n i n Tab l e III .
GE K-49861
r each
s hou l d
be
t empe r a t u r e i s w i t h i n the
ava i l a b l e
w i t h
( 8 8
t o 1 2 0 vo l t s ) ,
s uppl y
conta i n s
t h e
DC
i nput
r e la y .
On r e l a y s w i t h DC con t r o l vol t a g e
e x t e r na l
p r e - r e g u l a t o r
to
1 2 5
vol t s,
w i l l
make
cu r r e n t
TRIP OUTPUT CONTACTS
NON - INDUCTIVE
0.75
0.5
1.0
0.5
0.25
be tween
t e rm i n a l s
i s
p r ov i d ed fo r
w i th i n
5 %
of
r a t i ng s
of
4 8
o r
1 2 5
a
DC - to-DC
cont r o l
powe r
i s
u s e d .
s u i t a b l e
fo r
and
ca r r y
3 0
r a t i ng s
a r e
TABLE II
MOB OUTPUT CONTACT (SLY81 ONLY}
INDUCTIVE tt
2.0
1.0
3.0
1.5
0.75
1 1,
1 2,
t he
con t a c t
be tween
6
t h e
v a l u e
g i ve n
r a t ed
r a n g e of
s u r g e
t e s t w i t h o u t
vol t s
D C
( 3 8
vol t s D C
( 1 0 0
conve r t e r
t o
a nd
t h e
s o l i d
i n e x c e s s
Th i s
r ed u c e s
i npu t
t o
t h e
ampe r e s
fo r
t r i pp i ng
l im i t ed
by
t h e
l i s t e d
NON-INDUCTIVE
0.3
0.8
0.15
0.4
0.4
2.0
0.2
0.8
0.1
0.4
i s p r o v i de d fo r
a nd
1 3 .
A
ta r g e t
t e r m i n a l s
by
t o
5 6
t o
1 4 0
p r o v i de
s ta t e
t h e
r e l a y
t a r g e t
i n
w i t h
1 4
a n d
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