Eaton Magnum DS Series - Digitrip Trip Units - Comprehensive Features

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MAGNUM PRODUCT GUIDE CA013002EN—April 2017 www.eaton.com46
Magnum trip units and communication devices
Digitrip trip units – Comprehensive features
Table 12. Digitrip trip units for Magnum DS and SB ANSI/UL rated power circuit breaker
Trip unit type Digitrip 520 Digitrip 520M Digitrip 520MC Digitrip 1150+
Ampere range 200–5000A 200–5000A 200–5000A 200–5000A
Interruption rating
at 480V
42–200 kA 42–200 kA 42–200 kA 42–200 kA
rms sensing Yes Yes Yes Yes
Protection and coordination
Protection Ordering options LI, LSI, LSIG, LSIA LSI, LSIG LSI, LSIG LSI, LSIG, LSIA
Fixed rating plug (I
n
) Yes Yes Yes Yes
Overtemperature trip Yes Yes Yes Yes
Long delay
protection
(L)
Long delay pickup 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 sec 2–24 sec 2–24 sec 2–24 sec
Long delay time I
4
t No No No 1–5 sec
IEEE curves No No No Yes
Long delay thermal memory Yes Yes Yes Yes
High load alarm No No No 0.5–1.0 x (I
r
)
Short delay
protection
(S)
Short delay pickup 200–1000% x (I
r
) & M1 200–1000% x (I
r
) & M1 200–1000% x (I
r
) & M1 200–1000% x (I
r
) & M1
Short delay time I
2
t at 8 x I
r
100–500 ms 100–500 ms 100–500 ms 100–500 ms
Short delay time flat 100–500 ms 100–500 ms 100–500 ms 100–500 ms
Short delay time ZSI Yes Yes Yes Yes
Instantaneous
protection
(I)
Instantaneous pickup 200–1000% x (I
n
) & M1 200–1000% x (I
n
) & M1 200–1000% x (I
n
) & M1 200–1000% x (I
n
) & M1
Making current release Yes Yes Yes Yes
Off position Yes Yes Yes Yes
Ground fault
protection
(G)
Ground fault alarm No Yes Yes Yes
Ground fault pickup 25–100% x (I
n
) 25–100% x (I
n
) 25–100% x (I
n
) 24–100% x (I
n
)
Ground fault delay I
2
t at 0.625 x I
n
100–500 ms 100–500 ms 100–500 ms 100–500 ms
Disable ground fault
protection
No No No No
Neutral protection (N) Model LSI only Model LSI only Model LSI only Model LSI only
System diagnostics
Cause of trip LEDs Yes Yes Yes Yes
Magnitude of trip
information
No Yes Yes Yes
Remote signal
contacts
No Yes Yes Yes
Programmable
contacts
No No No Yes
Electronic operations
counter
No No No Yes
Over and undervoltage alarm or trip, over and underfrequency alarm or trip, voltage unbalance a larm or trip, reverse power trip and phase rotation
alarm are included.
1200A maximum ground fault setting per UL/NEC.
I
n
= Rating plug and sensor rating.
I
r
= Long delay pickup setting.
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Courtesy of NationalSwitchgear.com