9 – 3
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)
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“
Summary of Contents for UL 1066
Page 56: ...7 5 7 2 Frame size II fused ...
Page 58: ...7 7 ...
Page 63: ...7 12 8 27 210 0 8 27 210 0 8 27 210 0 3 75 95 2 ...
Page 64: ...7 13 ...
Page 65: ...7 14 7 7 Frame size III fuse carriage ...
Page 66: ...7 15 ...
Page 69: ...7 18 7 9 External sensor for neutral conductor WLNCT2 ...
Page 70: ...7 19 WLNCT3 ...
Page 85: ...9 5 I tripping Ground fault tripping ...
Page 231: ...15 12 Pre assembling the locking module Installing 0767 1 2 3 4 6 5 ...
Page 232: ...15 13 1 Socket head cap screw M5 with washer and nut 7 8 Size 4 5 Nm 45 lb in ...
Page 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 ...
Page 298: ...23 16 6 7 8 9 5 2 1 Size 5 mm ...
Page 333: ......