Technical data

6 IZMX circuit-breakers, INX switch-disconnectors
Electronic releases
CA01305001Z-EN www.eaton.com
Electronic releases
Standard protection Standard plus
selectivity
Universal
protection
Professional
protection
Type Coding
Digitrip 520 LI
IZMX-DTA
Digitrip 520 LSI
IZMX-DTV
Digitrip 520M LSI
IZMX-DTU
Digitrip 1150i LSI
IZMX-DTP
Current Range
200 - 4000 A 200 - 4000 A 200 - 4000 A 200 - 4000 A
RMS Value Monitoring
● ● ● ●
Protective functions
General
Ordering options LI LSI; LSIG LSI; LSIG; LSIA LSI; LSIG
Rating plug (I
n
) ● ● ● ●
Overtemperature trip
● ● ● ●
Overload protection L
Overload trip I
r
(0.5 - 1.0) x I
n
(0.5 - 1.0) x I
n
(0.5 - 1.0) x I
n
(0.5 - 1.0) x I
n
Long delay time at 6 x I
r
(I
2
t Curve) t
r
2 - 24 s 2 - 24 s 2 - 24 s 2 - 24 s
Long delay time at 6 x I
r
(I
4
t Curve) t
r
– – – 1 - 5 s
IEC Type A, B, C curves –
– – – ●
High load alarm –
– – ●
2)
Off, 0.5 - 1.0 x I
r
Thermal memory (enable / disable) – ● ● ● ●
Short-time delayed
Short-circuit protection
S
Short delayed pickup short-circuit protection I
SD
– (2 - 10) x I
r
(2 - 10) x I
r
(2 - 10) x I
r
Short delay time at 8 x I
r
(I
2
t Curve) t
SD
– 100 - 500 ms 100 - 500 ms 100 - 500 ms
Short delay time, flat characteristic curve t
SD
– 100 - 500 ms 100 - 500 ms 100 - 500 ms
Zone selectivity ZSI –
– ○ ○ ○
Non-delayed short-circuit protection I
Non-delayed short-circuit protection (2 - 12) x I
n
(2 - 12) 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/Earth fault alarm – A
– – ○
1)
○
1)
Ground/Earth fault protection release Ig – (0.25 - 1.0) x I
n
3)
(0.25 - 1.0) x I
n
3)
(0.24 - 1.0) x I
n
Short delay time at 0.625 x I
n
(I
2
t curve) tg – 100 - 500 ms 100 - 500 ms 100 - 500 ms
Short delay time, flat characteristic curve tg
– 100 - 500 ms 100 - 500 ms 100 - 500 ms
Zone selectivity ZSI –
– ○ ○ ○
Thermal memory –
– ● ● ●
Disable ground fault protection –
– – – ●
Neutral protection N
● ● ● ●
Notes l
n
= rating plug (rate current module) = rated operational current transformer
l
r
= Set value overload trip (= rated operational current of system)
1)
Requires external 24 V DC control voltage supply.
2)
High load alarm available only on LSI styles, active at 85% of I
r
3)
Limited to 1200 A
4)
Hand-held kits available for basic verification or advanced testing
5)
Captures fault current of latest event when control power is supplied
● Standard
○ Optional
– not available
IZMX16, INX16, IZMX40, INX40