WEG Molded Case Circuit Breakers - User’s Manual
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WEG Molded Case Circuit Breakers - User’s Manual
3
Figure 1:
UBW600 circuit braker frame
Circuit
breakers type
Trip unit types
Thermal-magnetic
Amperes l
n
Electronic (DIGITRIP RMS)
Amperes l
n
Fixed
thermal
Adjustable
thermal
1)
Adjust-
able
magnetic
(instanta-
neous)
Multiples
of l
n
1)
Trip unit
rating
Fixed
rating
plug
Adjustable rating
plug
Adjustable
short time
Multiples of l
n
1)
UBW600
500
5 to 10
600
500
500/600
2 to 8
600
600
Table 1:
available trip unit ratings
Notes: 1) For adjustable thermal trip units, the magnetic setting is a multiple of the maximum thermal setting.
