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IZM circuit-breakers, IN switch-disconnectors
Electronic releases for IZMX16 circuit-breakers
2010 CA08103002Z-EN
www.eaton.com18/3
Electronic releases for IZMX16 circuit-breakers
IZMX16…A…
System protection
DTA
Digitrip 520
IZMX16…V…
Selectivity protection
DTV
Digitrip 520
IZMX16…U…
Universal protection
DTU
Digitrip 520M
Current range
200 A - 1600 A
200 A - 1600 A
200 A - 1600 A
RMS value monitoring
●
●
●
Protective functions
General
Ordering options
LI
LSI, LSIG
LSI, LSIG, LSIA
Rating plug (I
n
)
●
●
●
Overtemperature trip
●
●
●
Overload protection
L
Overload trip
(0.5 - 1.0) x I
n
(0.5 - 1.0) x I
n
(0.5 - 1.0) x I
n
Delay time I
2
t at 6 x I
r
2 - 24 s
2 - 24 s
2 - 24 s
Thermal memory
●
●
●
Short-time delayed short-circuit protection
S
Delayed short-circuit protection
-
(2 - 10) x I
r
(2 - 10) x I
r
Short delay time I
2
t at 8 x I
r
-
100 - 500 ms
100 - 500 ms
Short delay time, flat characteristic curve
-
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 - 12) x I
n
(2 - 12) x I
n
Switch-off function
●
●
●
Closing releases MCR
●
●
●
Optional ground fault protection
G
Ground/fault alarm
-
-
○
1)
Ground/fault protection release
-
(0.25 - 1.0) x I
n
3)
(0.25 - 1.0) 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, flat characteristic curve
100 - 500 ms
100 - 500 ms
100 - 500 ms
Zone selectivity ZSI
1)
○
○
○
Thermal memory
●
●
●
Neutral conductor-conductor protection
N
●
●
●
System diagnostics
Status/Overload LED
-
●
●
Cause of trip LEDs
-
●
●
Current at trip point (display indication)
-
-
●
1
)
Ground fault release/alarm remote signaling (relay contact)
A
-
-
●
1)
Overload alarm monitoring
A
-
-
●
1)
System monitor
Digital display
-
-
4-digit LCD
Field bus communication
-
-
Optional: Modbus,
PROFIBUS
Additional functions
Test possibility
2)
-
Hand held test unit
Hand held test unit
Maintenance mode ARMS (Arc Flash Reduction Maintenance
System™)
-
-
○
1)
Notes
l
n
= rating plug (rate current module) = rated operational current current transformer
l
r
= Set value overload trip (= rated operational current of system)
1)
Requires external 24 V DC control voltage supply.
2)
Hand-held tester for simulating of secondary current
3)
In combination with ARMS function limited to 1200 A.
● Standard
○ Optional
IZMX16