9 – 7
Overcurrent protection settings
The parameters for the basic functions are adjusted with rotary coding switches.
Various additional functions are adjusted with slide switches.
The settings for the additional function "load monitoring" can be adjusted via:
- the alphanumeric display
- the BDA
- the PROFIBUS-DP
- the MODBUS
These settings can only be adjusted if the trip unit is activated, i.e. it must be connected to an external 24 V DC voltage supply
(UL Listed Class 2).
Protective functions
Overload protection – L-tripping (page 9-12)
Short-time delayed short-circuit tripping – S-tripping (page 9-12)
Instantaneous short-circuit tripping – I-tripping (page 9-13)
Ground-fault tripping – G-tripping (page 9-13)
Neutral conductor protection – N-tripping (page 9-14)
Load monitoring (load restore / load shedding) (page 9-14)
Leading signal for L-tripping (page 9-14)
Thermal memory can be switched On/Off (page 9-15)
Ground-fault protection modules (page 9-45)
Characteristics
The ranges shown in the following are only setting ranges of the respective parameters. Possible tolerance ranges are not included here.
Tolerance ranges are shown in the Easy TCC Time Current Curve Software. The characteristics apply to the circuit breaker version H-class,
480 V, frame size II, with ground-fault protection module.
L-tripping
S-tripping
Ground-fault tripping
NOTICE
Circuit breaker may trip.
If the trip settings are changed while the breaker is closed (and under load) the breaker may trip.
Adjust parameters only when the circuit breaker is in the open position.
The value 0.1 is set if the
rotary switch is positioned in this
zone
3 x 0.5
1/8“
Содержание UL 1066
Страница 43: ...6 12 7 Reset reclosing lockout 8 Charge closing spring 9 Switch ON Frame size II Frame size III 9X ...
Страница 56: ...7 5 7 2 Frame size II fused ...
Страница 58: ...7 7 ...
Страница 63: ...7 12 8 27 210 0 8 27 210 0 8 27 210 0 3 75 95 2 ...
Страница 64: ...7 13 ...
Страница 65: ...7 14 7 7 Frame size III fuse carriage ...
Страница 66: ...7 15 ...
Страница 69: ...7 18 7 9 External sensor for neutral conductor WLNCT2 ...
Страница 70: ...7 19 WLNCT3 ...
Страница 85: ...9 5 I tripping Ground fault tripping ...
Страница 231: ...15 12 Pre assembling the locking module Installing 0767 1 2 3 4 6 5 ...
Страница 232: ...15 13 1 Socket head cap screw M5 with washer and nut 7 8 Size 4 5 Nm 45 lb in ...
Страница 271: ...19 10 Function check Then Fit back front panel and side cover on the right if it was removed page 23 4 10 ...
Страница 280: ...21 2 Installing the door sealing frame Not for use with fuse carriages Catalog No Door sealing frame WLDSF 1 2 3 NOTICE ...
Страница 289: ...23 7 23 3 3 Installing arc chutes 1 2 6 5 PH 2 0043 02 3 4 5 6 For frame size III 3 PH 2 ...
Страница 298: ...23 16 6 7 8 9 5 2 1 Size 5 mm ...
Страница 333: ......