500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 7/121
Safety instructions
Personal protective
equipment (PPE)
For switchgear with proven internal arc classification according to IEC 62271 Part 200, no
personal protective equipment must be worn for operating the switchgear.
For switchgear without proof of internal arc classification according to IEC 62271 Part 200,
personal protective equipment must be worn for operating the switchgear.
If covers have to be removed to work on switchgear, personal protective equipment must be
worn for protection against hot gases exhausting in case of internal arc. In case of internal arc,
full personal protection is not provided, even if the personal protective equipment is worn.
To select the protective equipment, the local laws and regulations must be observed and
accomplished.
The protective equipment consists of:
• Protective clothing
•Safety shoes
•Gloves
•Helmet and face protection
•Ear protection
Removing the front plate from the operating mechanism compartment
DANGER
Risk of injury by release of charged operating springs when the front cover of the operating
mechanism is removed! Bruises or cuts at the hands can be the consequence.
➭ To avoid impermissible switching operations, switch off auxiliary voltage, e.g.:
- Switch the auxiliary voltage supply of the motor.
-Trip the MCB.
- Disconnect the control cables from the low-voltage compartment.
➭ To discharge the spring energy store in the operating mechanism, perform the following
operations before removing the front cover:
- Actuate the OFF pushbutton.
- Actuate the ON pushbutton.
- Actuate the OFF pushbutton.
➭ The spring energy store indicator must show "spring not charged".
Fig. 1: "Spring not charged" indication Fig. 2: "Spring charged" indication
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