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Communication-capable Circuit Breakers
WL Circuit Breaker
Safety Guidelines
This manual contains notices which you should observe to ensure your own personal safety, as well as to
protect the product and connected equipment. These notices are highlighted in the manual by a warning
triangle and are marked as follows according to the level of danger. This equipment contains hazardous
voltages. Death, serious personal injury, or property damage can result if safety instructions are not
followed. Only qualified personnel should work on or around this equipment after becoming thoroughly
familiar with all warnings, safety notices, and maintenance procedures contained herein. The successful
and safe operation of this equipment is dependent upon proper handling, installation, operation and
maintenance.
Danger
For the purpose of this manual and product labels, DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
Warning
For the purpose of this manual and product labels, WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
Caution
For the purpose of this manual and product labels, CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate injury.
Attention
Draws your attention to particularly important information on the product, handling the product, or to a
particular part of the documentation.
Qualified Personnel
For the purpose of this manual and product labels, a qualified person is one who is familiar with the
installation, construction and operation of the equipment, and the hazards involved. In addition, he or
she has the following qualifications:
(a) Is trained and authorized to energize, de-energize, clear, ground and tag circuits and equipment in
accordance with established safety practices.
(b) Is trained in the proper care and use of protective equipment, such as rubber gloves, hard hat, safety
glasses or face shield, flash clothing, etc., in accordance with established safety practices.
(c) Is trained in rendering first aid.
Correct Usage
Note the following:
Warning
This device and its components may only be used for the applications described in the catalog
or the technical descriptions, and only in connection with devices or components from other
manufacturers which have been approved or recommended by Siemens.
This product can only function correctly and safely if it is transported, stored, set up, and
installed correctly, and operated and maintained as recommended.
Registered Trademarks
WinPM.Net is a registered trademark of Siemens Energy & Automation. Some other designations
used in these documents are also brands; the owner's rights may be violated if they are used by
third parties for their own purposes. Excel and Explorer are registered trademarks of Microsoft
Corporation. Java is a registered trademark of Sun Microsystems. Netscape is a registered
trademark of AOL Time Warner.
WL PROFIBUS Communication and Electronic Accessories • July 2004
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