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Micromaster 420 (6SE6420-2UD22-2BA1)

1/31/2011 9:56 AM	Rate (0)
Ramboooo Posts: 77 Rating: (0)	Dear all I have a micromaster 420 (6SE6420-2UD22-2BA1) and I have a problem with it, when I connect the earth cable the RES.CURRENT CIRCUIT BREAKER it trips ,but when I disconnect the earth cable theRES.CURRENT CIRCUIT BREAKER does not trip and the micromaster 420 keeps functioning normally without any fault message The question: is the problem with the micromaster or not ?Thank you.
Ramboooo Posts: 77 Rating: (0)
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1/31/2011 1:20 PM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 6/7/2025 Posts: 1977 Rating: (479)	Details provided by you is not sufficiant for any conclusion. Please give more system Detail. What are the feeders connected to that CB? Have you isolated only MM420 and tried?
	I dont Like people driving Fast, thats the reason I overtake them ;)
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2/1/2011 1:58 AM	Rate (0)
Graeme Platinum Expert Joined: 6/4/2008 Last visit: 11/25/2025 Posts: 1521 Rating: (327)	Hi, if you use an RCD with an unfiltered MM, it must be a minimum of Type 'B' rating. Regards, Graeme

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2/1/2011 10:35 AM	Rate (0)
Ramboooo Posts: 77 Rating: (0)	Dear expert thank you for your interest , the problem it's solved thank you.
Ramboooo Posts: 77 Rating: (0)
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2/1/2011 5:14 PM	Rate (0)
Samer ITEC Posts: 2 Rating: (0)	Dear Lebanon2010, i'm from Lebanon too i faced the same problem, how did you solve it? thank you. Samer
Samer ITEC Posts: 2 Rating: (0)
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