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WEG Molded Case Circuit Breakers - User’s Manual
2
WARNING
Do not attempt to install or perform maintenance on equipment while it is
energized. Death, severe personal injury or substantial property damage
can result from contact with energized equipment. Always verify that no
voltage is present before proceeding with the task, and always follow
generally accepted safety procedures.
WEG is not liable for the misapplication or misinstallation of its products.
The user is cautioned to observe all recommendations, warnings and cautions relating
to the safety of personnel and equipment, as well as all general and local health and
safety laws, codes and procedures.
The recommendations and information contained herein are based on WEG
experience and judgement, but should not be considered to be all-inclusive or
covering every application or circumstance which may arise. If any questions arise,
contact WEG for further information or instructions.
1. INTRODUCTION
The UBW1200 Circuit Breaker (Figure 1) are 690 V ac maximum rated devices,
600 V for UL applications, and have integral trip units. Available current ratings are up to
1200 for UL applications. Refer to Table 1 for available trip units and
Table 2 for available rating plugs. UBW1200 WEG molded case circuit breakers are
listed in accordance with Underwriters Laboratories, Inc. Standard UL 489 and satisfy
the requirements of the International Electrotechnical Commission Recommendations
No. IEC 60947-2.
Figure 1:
UBW1200 circuit breaker
