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Hazardous procedures
In addition to other procedures described in
this instruction manual as dangerous, user
personnel must adhere to the following:
1. Always work only on a de-energized cir-
cuit breaker. The circuit breaker should
be isolated, grounded and have all con-
trol power removed before performing
any tests, maintenance or repair.
2. Always perform maintenance on the cir-
cuit breaker after the spring-charged
mechanisms are discharged (except for
test of the charging mechanisms). Check
to be certain that the indicator flags read
OPEN and DISCHARGED.
3. Always let an interlock device or safety
mechanism perform its function without
forcing or defeating the device.
Field service operation and warranty
issues
Siemens can provide competent, well trained
field service representatives to provide
technical guidance and advisory assistance
for the installation, overhaul, repair and
maintenance of Siemens equipment,
processes and systems. Contact regional
service centers, sales offices or the factory for
details, or telephone Siemens field service at
+1 (800) 347-6659 or +1 (919) 365-2200
outside the U.S.
For medium-voltage customer service issues,
contact Siemens at +1 (800) 347-6659 or +1
(919) 365-2200 outside the U.S.
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