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Unread 31-01-2012, 07:55
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1996
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Re: 500s motors on relays?

ATM fuses are rated to open in 500 ms with 135% overload. That's 27 amps for those without a calculator. Every overload over 20 amps weakens the fuse so that even repeated surges of 22-25 amps will likely open the fuse at some point in time.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.