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42
Check
Frequency
Procedure
4 years
Mechanism
• Position of mechanism
•
PMP 3001 - (Confidential)
• Measure of closing and tripping force
•
PMP 3007 - (Confidential)
• Measure of working torque of mechanism
•
PMP 3008 - (Confidential)
Main contacts
• Sequence
•
PMP 3005 - (Confidential)
• Latching margin test
•
PMP 3006 - (Confidential)
• Measure of resistence of contacts
•
PMP 3009 - (Confidential)
• Measure of insulation resistance
•
PMP 3010 - (Confidential)
Auxiliary
• Test at standards requirements
•
PMP 3011 - (Confidential)
Trip Unit
• Check of trip curve
•
PMP 3012 - (Confidential)
• Check the communication
•
PMP 3013 - (Confidential)
Level 2 Maintenance
Maintenance intended to be used only by BTicino service or by certified/qualified Company. For this
reason the explanation of these second level procedures is not included in this maintenance guide
The maintenance frequency must be intended with following operating and environment condition:
Level 2 Maintenance
Normal operating and environment condition
Load
<0,9 of In
Temperature
Average annual temperature <25°C
Dust
Low level, or with panel-board IP55 – IP65
Relative humidity
<70%
Corrosive atmosphere
Environment category 3C1 or 3C2 (IEC 60721-3-3)
Salt environment
None (IEC 60068-2-52)
Vibration
< 0,2 g (IEC 60068-2-6)
If real operating and environment condition are more severe than Normal one (described in previous
table):
- The level 1 maintenance frequency must be reduced by half, but anyway never less than 1 year
- The level 2 maintenance doesn’t change its frequency