Description of device
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06/10 MN03402004Z-DE/EN
Description of device
Overload protection with motor-protective circuit-
breakers
The PKE device is a three-pole motor-protective circuit-
breaker with electronic wide-range overload protection
designed to monitor electric motors for overload.
In the event of an overload trip, the PKE isolates all poles of
the main circuit through trip block PKE-XTU(A)-… to
immediately stop the flow of current to the monitored motor.
Figure 3: Circuit diagram for motor-protective circuit-breaker PKE
with trip block PKE-XTU(A)-…
Setting range of the motor-protective circuit-breaker
The rated motor current of the PKE is set with the setting dial
(
Figure 4: Rated motor current setting dial
With two basic devices (PKE12 for up to 12 A and PKE32 for
up to 32 A), and four different electronic trip blocks, the PKE
can monitor motors with a rated current from 0.3 to 32 A
(
I > I > I >
L1 L2
L3
T1
T2 T3
-Q1
...A
CLASS
Summary of Contents for PKE12 Series
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