For your safety
6 9229 0025 176 0E
2021-11-15
Manufacturer’s product liability
Product liability claims are upheld only if the replacement of the purchased spare
parts is performed by personnel that have been trained and certified by Siemens.
The manufacturer’s product liability shall be excluded if at least one of the following
criteria applies:
• Original Siemens spare parts are not used.
• Fitters carrying out replacements have not been trained and certified by Sie-
mens.
• Parts have been incorrectly fitted or adjusted.
• Settings have not been made in accordance with Siemens specifications.
• After installation and adjustment, no final test is performed with a test unit
approved by Siemens including documentation of the test results.
To keep documentation complete, it is important that the test results are submitted
to the responsible Siemens representative. See “Service” on p. 2.
General safety instructions
The following safety instructions must be observed and apply to all subsequent
chapters. The safety instructions must always be observed in addition to the instruc-
tions given in the individual sections.
High voltage
Live parts! Touching live parts results in a life-endangering electric shock.
Establishing and ensuring a voltage-free state at the work site for the duration of the
work.
Before starting work, observe the 5 safety rules in the order given in accordance with
DIN EN 50110-1:
• Disconnect from the power supply
• Secure against re-connection
• Verify safe isolation from the power supply
• Earth and short-circuit
• Cover or cordon off neighbouring live parts
Checking the vacuum circuit-breaker in the panel with applied high voltage is al-
lowed only after full functionality has been determined (see “Commissioning”, on
page 69).
Rotating parts or parts
under spring tension
Crushing hazard – Mechanical parts can move quickly, even if they are re-
mote-controlled.
Contact with mechanical parts or parts under spring charge can lead to crushing of
body parts.
• Do not remove covers.
• Do not reach into openings.
• Do not touch pole assemblies or circuit-breaker shaft.
If work must be carried out on the open operating mechanism housing, all switching
operations must be blocked. If the cover has not been refitted for test switching op-
erations, a safety distance of at least 1 m must be maintained.
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