Safety Instructions - Siemens SENTRON 3WA1 Manual

1.6

Safety instructions

Hazardous voltage
Will cause death, serious personal injury, or equipment damage.
During operation, parts of the device or system are carrying hazardous electrical
voltage. Improper handling of the device or system can result in death or serious injury,
as well as significant material damage.
• Inspection and maintenance may only be performed by qualified personnel.
• Pay attention to all the notices provided on the product and in this manual.
• Before commencing maintenance work, ensure that no voltage is present on the
Qualified personnel
Inspection and maintenance may only be performed by qualified personnel.
In the context of these operating instructions and the warning notices on the product,
qualified personnel refers to persons who are familiar with the erection, installation,
commissioning and operation of the product and who possess the qualifications
appropriate for their activities, e.g.:
• Training or instruction/authorization to close and open, ground, and tag circuits and
devices and systems in accordance with established safety procedures.
• Training or instruction in the proper care and use of protective equipment in
accordance with established safety procedures.
• Training in first aid.
Spare parts
Only spare parts approved by the manufacturer may be used.
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
DANGER
power distribution equipment and make sure that this condition is maintained while
work is being performed (according to EN 50110-1, DIN VDE 0105-100 and BGV A2).
Proceed in accordance with the Five Safety Rules:
– Turn off all power supplying the equipment.
– Lock out all power supplying the equipment to secure against reconnection.
– Verify that no voltage is present on the device.
– Ground and short the circuit.
– Provide protection against adjacent live parts.
Introduction
1.6 Safety instructions
19