Eaton 520 - Page 8

8
Operating Manual for Series NRX
Trip Units - Digitrip™ 520/520M
EATON www.eaton.com
Instruction Leaet IL01301051E
effective September 2013
List of Digitrip 520/M trip units with type codings and catalogue numbers
Digitrip 520 LI
System Protection
IZMX and IZM91/95 frame:
IZMX16/40...A...
IZM91/95...A...
Catalogue Number:
N5LI
Protection Features:
Long delay protection (L)
Instantaneous protection (I)
Digitrip 520 LSI(G)
Selective Protection
IZMX and IZM91/95 frame:
IZMX16/40...V...
IZM91/95...V...
Catalogue Number:
N5LSI
Protection Features:
Long delay protection (L)
Short delay protection (S)
Instantaneous protection (I)
Catalogue Number:
N5LSIG
Protection Features:
Long delay protection (L)
Short delay protection (S)
Instantaneous protection (I)
Earth fault protection (G)
Digitrip 520M LSI/LSIG/LSIA
with or without Maintenance Mode
Universal Protection
IZMX and IZM91/95 frame:
IZMX16/40...U...
IZM91/95...U...
Catalogue Number:
N5M(R)LSI
Protection Features:
Maintenance Mode (R) optional
Long delay protection (L)
Short delay protection (S)
Instantaneous protection (I)
Catalogue Number:
N5M(R)LSIG
Protection Features:
Maintenance Mode (R) optional
Long delay protection (L)
Short delay protection (S)
Instantaneous protection (I)
Earth fault protection (G)
Catalogue Number:
N5M(R)LSIA
Protection Features:
Maintenance Mode (R) optional
Long delay protection (L)
Short delay protection (S)
Instantaneous protection (I)
Earth fault alarm (A)
Table 3. Available Digitrip 520 and 520M Trip Units