48
4.1.3 MCH-III - The position
Tools necessary:
Venier
• Identification tipology:
Type A
Type B
Measure the position of mechanism
Close the breaker.
Measure the dimensions indicated in pictures
Must be
➔
Frame I: B>3 mm
➔
Frame II: B>3,5mm
At the end get again the breaker in open
position with springs discharged
discharged
charged
discharged
discharged
discharged
charged
discharged
discharged
If these dimensions are out of limits
➔
it is
necessary to perform the procedure “PMP3001” *
*procedure “PMP3001” can be used only By BTicino
service or certified/qualified service companies
No check necessary
B >3 mm Frame I
B >3,5mm Frame II