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9 – 1
9
Electronic components
9.1
Trip units
9.1.1
Overview of function
q
standard
o
optional
-
not available
1
fixed
Trip Units
Functions
ETU745
ETU776
Basic protective functions
Overload protection (L-tripping)
q
q
Short-time-delayed short-circuit protection (S-tripping)
q
q
Instantaneous short-circuit protection (I-tripping)
q q
Neutral conductor protection (N-tripping)
q q
ground-fault tripping
o
o
Additional functions
Load monitoring
q q
Pre-trip signal for long-time trip
q q
Thermal memory can be switched on/off
q q
Zone selective interlocking
o
o
Neutral conductor protection
can be switched on/off
q q
Short-time delayed short-circuit protection
can be switched on/off
q q
Instantaneous short-circuit protection
can be switched on/off
q q
Short-time delayed short-circuit protection
switchable to I
2
t
q q
Overload protection
switchable to I
4
t
q q
Changeable parameter sets
-
q
Ground-fault protection to I
2
t
o
o
Ground-fault alarm
o
o
Display
Alphanumeric display
o
-
Graphical display (fixed-mounted)
-
q
Communication
Communication via
c
q q
Communication via
PROFIBUS DP
o
o
Communication via Modbus RTU
o
o
Communication via Modbus TCP
o
o
Communication via PROFINET IO
o
o
Metering function
Metering function
PLUS
o
o
Parameterization
Parameterization via rotary coding switches
q
-
Parameterization via communication (absolute values)
-
q
Parameterization via menu (absolute values)
-
q
Remote parameterization of basic protective functions
-
q
Remote parameterization of additional functions
q q
Other
Option for connecting to an external 24 V DC power supply
q q
Содержание UL 489
Страница 36: ...5 21 Frame size II 3000 A Frame size III 1 Holes 14 mm 0720 1 0721_nu ...
Страница 63: ...7 2 Horizontal connectors 0733_nu top view ...
Страница 64: ...7 3 Rear vertical connectors 0734_nu top view rear view ...
Страница 65: ...7 4 Front connectors 0736_nu front view top view ...
Страница 66: ...7 5 Front connectors and pressure wire terminals 0737_nu top view front view ...
Страница 67: ...7 6 7 2 Frame size II fixed mounted version 0494 3_nu ...
Страница 68: ...7 7 Class C always 0494 5_nu top view rear view ...
Страница 69: ...7 8 2500 0738_nu LH side view front view ...
Страница 71: ...7 10 7 4 Frame size III fixed mounted version 0495 1_nu LH side view ...
Страница 72: ...7 11 0495 2_nu top view top view ...
Страница 73: ...7 12 0495 3_nu top view rear view ...
Страница 75: ...7 14 7 5 Door cut outs fixed mounted circuit breaker Frame size I 0735_nu ...
Страница 76: ...7 15 Frame size II III 0496_nu ...
Страница 77: ...7 16 7 6 Frame size I draw out version 0745_nu ...
Страница 78: ...7 17 0746_nu rear view top view ...
Страница 79: ...7 18 0747_nu bottom view ...
Страница 80: ...7 19 0748_nu ...
Страница 81: ...7 20 0749_nu ...
Страница 82: ...7 21 7 7 Frame size II draw out version 0490 1_ul ...
Страница 86: ...7 25 7 8 Frame size III draw out version ...
Страница 87: ...7 26 ...
Страница 88: ...7 27 ...
Страница 89: ...7 28 7 9 Door cut outs for draw out circuit breakers Frame size I 0750_nu ...
Страница 91: ...7 30 7 11 External sensor for neutral conductor WLNCT2 ...
Страница 92: ...7 31 WLNCT3 ...
Страница 107: ...9 5 I tripping Ground fault tripping ...
Страница 256: ...15 12 Installing FS II and FS III 1 Socket head cap screw M5 with washer and nut 1 2 3 4 6 5 7 8 Size 4 5 Nm 45 lb in ...
Страница 307: ...22 2 Installing the door sealing frame Not for use with fuse carriages Catalog No Door sealing frame WLDSF 1 2 3 ...
Страница 351: ......