IEK BA88-32, Инструкция по эксплуатации, Страница: 8 / 18

8
(2)
The overall and installation dimensions of the switch are shown in figure 4.
where I – supposed overload current, À ;
ô
I – delayed short-circuit protection current, À;
sd
The short circuit response delay time for currents other than 1.5
ґ
I can be
R
determined using the formula:
tR – short-circuit response delay time for current 1,5
ґ
I , s.
sd
(1)
where I – supposed overload current, À ;
ô
I – current setting of the adjustable overload release, À;
R
t – overload delay time for current 2
ґ
I , s.
R R
Additional assembly units for the circuit breaker, ordered separately, are
shown in the table 5.
The circuit diagram of the circuit breaker is shown in figure 3.
The dimensions of the busbars of the transition connections for the switch
are shown in figure 5.
For the switch, you can additionally purchase terminal covers ( ÊÊì ), as well
as extended terminals and adapter tips. The dimensions of the extended
terminals and adapter tips for the switch are shown in figure 7. The adapter tips
are designated as, "For the central outlet" and represent three straight copper
busbars. The extended terminals consist of one central and two side tires.
Completeness of set
Installation rules
The connection of the corresponding flexible conductors or busbars is
carried out using the fasteners for connecting the external conductors.
Connection of both copper and aluminum conductors is allowed. It is
recommended to use lugs together with flexible conductors (not included in the
delivery set). The dimensions of the connected lugs and busbars should
correspond to those presented in figures 5, 6
and tables 7, 8. The size of the core
to be crimped (crimped) with the help of the lug should be selected taking into
account the requirements of BCH 13983.
The circuit breaker is installed on a metal panel with a thickness of at least
1 , 5 mm or an insulating panel with a thickness of at least 6 mm and fixed with the
screws included in the delivery.
The minimum installation distances of the switches are shown in figure 6.
The scope of delivery is given in table 6.
K
ARA
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