Technical data
23
©1995 Square D—All Rights Reserved
11/98
Additional Connections (BS):
Single connection only is allowed in the terminal block. Multiple connections have to be made by
adding extra terminals in the block located on the stationary assembly. The BS option consists of
five additional terminals.
Connection:
Accessory terminals are maintenance-free and may be connected by standard #18 to #14 AWG
copper wires. Cable strip length: 3/8 in. (10 mm).
06313046
CONNECTED
TEST
DISCONNECTED
Disconnected
Position
Switches
Terminal
Block
Connected
Position
Switches
Auxiliary
Switches
Overcurrent
Trip Switch
Opening Coil
Closing Coi
l
Heavy Usage
Auxiliary
Switches
Ready to
Close Switch
Spring
Charging
Motor
push to reset
I+T
L+I
I
L+T
L
off
T
L+I+T
I
I1 I2 I3
90%
50%
20%
STR 58 U
Ir tr
90
105
τ
tr
%Ir
.88
.9
.92
.95
.98
1
.8
.85
xIo
60
120
240
480
15
30
at 1.5Ir
Im tm
3
45
6
8
101.5
2
xIr
.3
.4 .3
.1
.1
.2
on I
2
t off
.2
0
Ir fault
tr
Im fault
tm
I
fault
Ih
th
t
i
test
+ –
– +
T
R
F
test
Ih
1200A Max
th
400
500 600
800
1000
1200
250
320
A
.3
.4 .4
.2
.1
.2
on I
2
t off
.3
.1
I
8
12 14
19
22
Max.
2
4
xIn
Ic1 Ic2
.86
.9 .93
.95
.98
1.8
.85
xIr
.7
.8
.85
.95
.5
.6
.9
1
xIr
V
Ir :
Im :
th :
min.
norm
overcurrent
ground
reset V
Accessories
Secondary Disconnects
Electrical accessories are UL Listed for field installation per UL file E113554. They are provided with
terminals and located on secondary disconnecting blocks above the circuit breaker:
n Fixed-mounted: By one or two connecting plugs (provided).
n Drawout-mounted: To terminal block A located in the front of the stationary assembly for easy
access. (This terminal block is then wired to another connection block B that operates
automatically to isolate the internal accessories when the circuit breaker is in the disconnected
position.)
06313044
06313010
Fixed-mounted Circuit Breaker Drawout-mounted Circuit Breaker
A
B
Location