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1 PKZM0-.../XTPR...BC1NL, PKZM0-...-T/XTPT...BC1NL motor-protective circuit-breakers
1.2 Device overview
1.3 Description of device
1.3.1 Overload protection with motor-protective circuit-breakers
a
b
Figure 1: PKZM0-.../XTPR...BC1NL and PKZM0-...-T/XTPT...BC1NL
motor-protective circuit-breakers
a Motor current dial
b Testing element
The PKZM0-.../XTPR...BC1NL, PKZM0-...-T/XTPT...BC1NL series are
3-phase electromechanical motor-protective circuit-breakers with bimetallic
release for overload monitoring.
The PKZM0-.../XTPR...BC1NL, PKZM0-...-T/XTPT...BC1NL motor-protective
circuit-breaker disconnects all phases from the main circuit when an overload
occurs. The power flow to the monitored motor is thus switched off directly.
L1 L2 L3
-Q1
I > I > I >
T1 T2 T3
Figure 2: Circuit diagram of the PKZM0-.../XTPR...BC1NL,
PKZM0-...-T/XTPT...BC1NL motor-protective circuit-breakers
PKZM0-.../XTPR...BC1NL, PKZM0-...-T/XTPT...BC1NL 01/22 MN03402003Z-DE/EN www.eaton.com
1.2 Device overview
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