B-
B-
B-
B-10
10
10
10
5.1.2 Under-voltage release
The under –voltage release shall act to switch off the breaker when the power voltage decreases (even if slowly decreases )
to 70% -35% rated voltage .It shall prevent the breaker from reclosing, if the power voltage decreases to less than 35% rated
voltage .It shall ensure to close the breaker ,if the power voltage is equal to or greater than 85% rated voltage.
The rated voltage of the under-voltage release is 50Hz, 230V and 400V.
Note:
Note:
Note:
Note: only
only
only
only when
when
when
when the
the
the
the under
under
under
under –
–
–
–voltage
voltage
voltage
voltage release
release
release
release be
be
be
be supplied
supplied
supplied
supplied rated
rated
rated
rated voltage,
voltage,
voltage,
voltage, the
the
the
the breaker
breaker
breaker
breaker can
can
can
can be
be
be
be closed,
closed,
closed,
closed, otherwise
otherwise
otherwise
otherwise the
the
the
the
breaker
breaker
breaker
breaker will
will
will
will be
be
be
be damaged
damaged
damaged
damaged
.
5.1.3 Auxiliary contact
Auxiliary contact of breaker is divided into two parts. In electricity, each part is not divided. Auxiliary contact (see table 5)
5.1.4 Alarm contact
The rated voltage and related parameters of alarm contact are shown in table 5: the initial position pf alarm contact are not
changed only when breaker at free position or fault tripped.
Table 5
Auxiliary circuit parameter
5.2 External accessory
5.2.1 The motor operation mechanism is shown in table 6 and the max dimension of depth is shown in
table 7.
Table 6
Type
Rated
insulation
Voltage
V
Specifie
d
Heat
Current
A
AC-15
DC-13
Rated
voltage
V
Rated
frequency
Hz
Rated
current
A
Rated
voltage
V
Rated
current
A
A
u
x
ili
a
ry
c
o
n
ta
c
t
Inm≤225A
400
3
380
50
0.26
220
0.14
Inm≤400A
6
3
0.2
Alarm
contact
3
/
/
/
/
Type
Model
BAM8-63
BAM8-100 BAM8-225
BAM8-400
BAM8-630
BAM8-800
Structure form
Electromagnet
Motor
