21
MCR/HSISC
The Making Current Release (MCR) and High Set
Instantaneous Short Circuit Protection (HSISC) are factory
pre-set relative to the capacity of the circuit breaker to which
the M-PRO is fitted.
Time
Current
Fixed
M-PRO 20/30/40 MOTOR PROTECTION Long Time Protection
0.01
0.1
1
10
100
1000
10000
110100
CURRENT IN MULTIPLES OF Ir
TIME TO TRIP IN SECOND
Ir = 0.4 to 1.0 x In
Min/max settings
show n in BOLD
LT cur ve 1
ITSC curve 1
LT cur ve 1 6
ITSC curve 1 6
1.5 In 12 In
1s
Inst
Note: ITSC curve is alw ays
10 X the set LT curve
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