Effective 7/1/2003
Page 3
I.L. 70C1037H04
Table 1.1a Protection Types Available for Digitrip Trip Units
Notes:
1. Limited to 1200 Amperes; this is only for UL versions, not for IEC models.
2. Four cause of trip LEDs–L, S, I, G. Making Current Release is indicated by the Instantaneous LED.
3. Requires Ground Alarm/Power Supply Module (see Section 1.6).
4. Additional setting is marked M1 where:
800-3200A Frame:
M1 = 14 x /n for Plug Amps 100 through 1250A
M1 = 12 x /n for Plug Amps 1600, 2000, 2500A
M1 = 10 x /n for Plug Amps 3000, 3200A
4000-6300A Frame:
M1 = 14 x /n for Plug Amps 2000, 2500A
M1 = 12 x /n for Plug Amps 3200, 4000, 5000A (see Section 2.5)
M1 = 10 x /n for Plug Amps 6000, 6300A
5. ZSI = Zone Selective Interlock
(See Section 3.4)
Digitrip Trip Unit Type
220
+
520/520
i
520M/520M
i
520MC/520MC
i
Ampere Range
100A-3200A
100A-6300A
100A-6300A
100A-6300A
RMS Sensing
Yes
Yes
Yes
Yes
Communications
No
No
No
Yes
3
Protection and Coordination
Figure Number Reference
3.2.1
3.2.2, 3.2.3, 3.2.4
3.3.1, 3.3.3, 3.3.2, 3.3.4
3.4.1, 3.4.3, 3.4.2, 3.4.4
Protection
Ordering Options
Fixed Rating Plug (
I
n)
Overtemperature Trip
PLI
Yes
Yes
LSI, LSIG, WLSIG
Yes
Yes
MLSI, MLSIG, MLSIA, MWLSIG
Yes
Yes
CLSI, CLSIG, CLSIA, CWLSIG
Yes
Yes
Long
Long Delay Setting
Delay
Long Delay Time I
2
t at 6 x (
I
r)
Protection
Long Delay Thermal Memory
0.4-1.0 x (
I
n)
2-24 Seconds
Yes
0.4-1.0 x (
I
n)
2-24 Seconds
Yes
0.4-1.0 x (
I
n)
2-24 Seconds
Yes
0.4-1.0 x (
I
n)
2-24 Seconds
Yes
Short
Short Delay Pick-Up
4
Delay
Short Delay Time I
2
t at 8 x (
I
r)
Protection
Short Delay Time FLAT
Short Delay Time ZSI
5
No
No
No
No
200-1000% x (
I
r)
100-500 ms
100-500 ms
Yes
200-1000% x (
I
r)
100-500 ms
100-500 ms
Yes
200-1000% x (
I
r)
100-500 ms
100-500 ms
Yes
Instan-
Instantaneous Pick-Up
4
taneous
Off Position
Protection
Making Current Release
Ground
Ground Fault Option
(Earth)
Ground Fault Alarm
Fault
Ground Fault Pick-Up
Protection
Ground Fault Delay
I
2
t at .625 x (
I
n)
Ground Fault Delay Flat
Ground Fault ZSI
5
Ground Fault Memory
200-1000% x (
I
n)
No
Yes
No
No
No
No
No
No
No
200-1000% x (
I
n)
Yes
Yes
Yes
No
25-100% x (In)
1
100-500 ms
100-500 ms
Yes
Yes
200-1000% x (
I
n)
Yes
Yes
Yes
Yes
3
25-100% x (In)
1
100-500 ms
100-500 ms
Yes
Yes
200-1000% x (
I
n)
Yes
Yes
Yes
Yes
3
25-100% x (In)
1
100-500 ms
100-500 ms
Yes
Yes
Neutral Protection
Yes
Yes Cat LSI only
Yes Cat MLSI only
Yes Cat CLSI only
System Diagnostics
Status/Long Pick-up LED
High Load Alarm/ Alarm Contacts
Cause of Trip LEDs
Magnitude of Trip Current
Yes
No
Yes
No
Yes
No
Yes
2
No
Yes
Yes
3
Cat MLSI only
Yes
2
Yes
3
Yes
Yes
3
Cat CLSI only
Yes
2
Yes
3
Remote Ground Trip/Alarm Contacts
No
No
Yes
3
Yes
3
System Metering
Digital Display
No
No
4 Char. LCD
4 Char. LCD
