Download Print this page

Siemens SB Series Information And Instruction Manual page 36

Encased systems breakers 4000 ampere frame rating
Hide thumbs Also See for SB Series:

Advertisement

Internal A ccessories
Electric Motor Op erator and Local Electric Close
A charging status indication (contact accessible at ter­
minal point < L T 4>) provides the capability to remotely
monitor the stored energy mechanism. The contact is "on"
if the springs are fully charged. The contact will be alter­
nately "on" for 300 milliseconds and "off" for 300 mill isec­
onds as the springs are charging or until 20 seconds have
elapsed, approximately twice the time required to charge
the springs. If the springs are not charged after 20 seconds,
the contact alternates between 1 second "on" and 1
second "off, " indicating thatthere is a problem. SB breakers
with an electric operator may be charged manually if the
electric operator is disabled for any reason .
o
n t ro
C
l
P ow
r
e
, - Note Customer
May Provtde
Permtsstve Control
Through Thts Ltne
Supplied by
Customer
\ _
W Max.
10
Amps Max
0.5
Vdc Max.
200
I
C
Factory
Installed Jumper
I
ng
Note Customer May Prevent
o st
Of
Electnc
l
Replac 1 ng Factory I nstalled
By
Ju mper Wtre Wtth A S et
E x t
r n a
e
l
Contacts
External Connections
Electric Motor Operator Schematic Diagram
Electrical Test Information
1 . ) Attach test circuit to accessory leads. Apply rated
voltage to the L T1 and L T5 connections. The Electric
Operator should charge the breaker. During charging
the lamp connected to L T 4 should flash. After charging
is complete the lamp connected to L T 4 should remain
lighted .
NOTE: For Trouble Shooting Guide see page 37.
44
: '
'--- --<
�_l:"f_1_:>_
Eiec O
_
Rem. Close +
<LT2>
Local Electric Close +
<LT3>
<LT4> Spnng Ch. lnd
COMMON
< L T5 >
'
'
- Thts
1
1
:
Wtre
- - -
'
1
<LB?> ECt
' <C-
1
,
The Breake
O f
-
Elect ric Close
Interlock Option
A,diiUl � k FdL"O'y lr�>IJIIec 0DIOrC)i11
-
- - -
- - - - - - -
Internal Breaker Connections
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ j
Local Electric Close
The local electric close allows the user to electrically inter­
lock a local closing operation. It is available for breakers
with either the electric operator or remote closing solenoid.
The local electric close is commonly used i n conjunction
with a manual close-blocking device (See Close Blocking
Device, page 58).
The electric close pushbutton switch is installed in the
center escutcheon of the front panel, directly below the
push-to-close button switch.
The Local Electric Close accessory is
-
- - - - - - - - - - - - - - - - - - - - - - - - - - -
j NC
COM /,_ _ _ _ - - -
Remote Close +
<LT2>
NO
.
LEC
(Local Electric
Close) Sw 1 tch
Local Electnc Close
<LT3>
Local Electric Close
o
�v�a�e�s:a�to�y :s� l l � d�p�
�O� y-
_ _ _ _ _ _ _ _ _
r +_
_ _
pe
'
Is Not
ECI
Wire
s� �
�n
t
1-3/4
Fuse
A
Slo-Bio
C l os1 n g
Cod
Electric Operator
2.) With voltage applied to LT1 and LT5, apply voltage to
L T2. The breaker should close and the Electric Opera­
tor should recharge the breaker spring .
3.) If the Electric Operator does not function properly
during check procedure check for i ncorrect installation
or wiring.
not
field installable.
'
Switch
Check)
"
. (Handle
NC I
HC
Sw 1 tch
(Latch Check)
'
C
L
Sw 1 tch
(Cam Check)
CAM
'

Advertisement

loading