Applications
3.2 Line protection applications of 3VA molded case circuit breakers
3VA molded case circuit breakers with IEC certificate
114
Manual, 03/2019, A5E03603177010-03
Thermal-magnetic trip unit TM240 LI
Line protection ATAM - function LI
The thermal-magnetic trip unit TM240 has:
●
adjustable parameter setting I
r
for overload protection (L)
●
adjustable parameter setting I
i
for instantaneous short-circuit protection (I)
●
With 4-pole versions only: Neutral conductor (N) protection permanently set to 0%, 50%
or 100% I
r
depending on version
Parameter TM240:
1)
With 4-pole versions only:
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