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18/40 IZM circuit-breakers, IN switch-disconnectors
Electronic releases for IZM26 circuit-breakers
2010 CA08103002Z-EN
www.eaton.comElectronic releases for IZM26circuit-breakers
IZM26 ...-A...
System protection
DTA
Digitrip 520 LI
IZM26 ...-V...
Selectivity protection
DTV
Digitrip 520 LSI(G)
IZM26 ...-U...
Universal protection
DTU
Digitrip 520MC LSI(G)
IZM26 ...-P...
Universal protection with
power measurement
DTP
Digitrip 1150i LSI(G)
Current range
200 A – 3200 A
200 A – 6300 A
200 A – 6300 A
200 A – 6300 A
RMS value monitoring
●
●
●
●
Protective functions
General
Ordering options
LI
LSI, LSIG
LSI, LSIG, LSIA
LSI, LSIG, LSIA
Rating plug (I
n
)
●
●
●
●
Overtemperature trip
●
●
●
●
Overload protection
L
Overload trip
(0.4 - 1.0) x I
n
(0.4 - 1.0) x I
n
(0.4 - 1.0) x I
n
(0.4 - 1.0) x I
n
Long delay time I
2
t at 6 x I
r
2 - 24 s
2 - 24 s
2 - 24 s
2 - 24 s
Long delay time I
4
t
–
–
–
1 - 5 s
Thermal memory
●
●
●
●
Overload alarm signal
–
–
○
1)
○
1)
: (0.5 - 1.0) x I
r
Short-time delayed short-circuit
protection
S
Short delay pickup
–
(2 - 10) x I
r
and M1
2)
(2 - 10) x I
r
and M1
2)
(2 - 10) x I
r
and M1
2)
Short delay time I
2
t at 8 x I
r
–
100 - 500 ms
100 - 500 ms
100 - 500 ms
Short delay time, flat characteristic
curve
–
100 - 500 ms
100 - 500 ms
100 - 500 ms
Zone selectivity ZSI
1)
–
○
○
○
Non-delayed short-circuit protection
I
Non-delayed short-circuit
protection
(2 - 10) x I
n
(2 - 10) x I
n
and M1
2)
(2 - 10) x I
n
and M1
2)
(2 - 10) x I
n
and M1
2)
Switch-off function
–
●
●
●
Closing releases MCR
●
●
●
●
Ground operational fault protection
G
Ground/fault alarm
–
–
○1)
○1)
Ground fault protection release
–
(0.25 - 10) x I
n
(0.25 - 10) x I
n
3)
(0.25 - 10) x I
n
3)
Short delay time I
2
t at 0.625 x I
n
–
100 - 500 ms
100 - 500 ms
100 - 500 ms
Short delay time, curve
–
100 - 500 ms
100 - 500 ms
100 - 500 ms
Zone selectivity ZSI
1)
–
○
○
○
Thermal memory
–
●
●
●
Neutral conductor-conductor
protection
N
●
Only for type LSI
Only for type LSI
Only for type LSI
Notes
l
n
= rating plug (rated current module) = rated operational current current trans-
former
l
r
= Set value overload trip (= Rated operational current of system)
1)
Requires an external 24 V DC control voltage supply.
2)
Additionally available M1 set values:
● Standard
○ Optional
3)
In combination with ARMS function limited to 1200 A.
IZM20
M1 = 14 x I
n
for rated operational currents von 200 A to 1250 A
M1 = 12 x I
n
for rated operational currents from 1600 A to 2000 A
IZM32
M1 = 14 x I
n
for rated operational currents von 200 A to 1250 A
M1 = 12 x I
n
for rated operational current from 1600 A to 2500 A
M1 = 10 x I
n
for rated operational currents from 3200 A
IZM40
M1 = 12 x I
n
for rated operational currents from 4000 A
IZM63
M1 = 14 x I
n
for rated operational currents from 2000 A 2500 A
M1 = 12 x I
n
for rated operational currents von 3200 A 5000 A
M1 = 10 x I
n
for rated operational currents from 6300 A
IZM26...