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Square D breakers #7873 02/26/02 10:22 PM
Joined: May 2001
Posts: 30
N
Nevin Offline OP
Member
Can someone tell me what the difference is between the Square D breaker FA36100 and the Square D breaker FH36100?
These both apparently fit the I-Line panelboards, are rated for 600 volts and have the same physical dimensions.

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Re: Square D breakers #7874 02/27/02 12:32 AM
Joined: Dec 2001
Posts: 270
E
Elzappr Offline
Member
From what I can cipher from the catalog, for 3 phase:
FH designates a 65K interrupting rating, @240V, and 25K, @277/480V and 480V;
FA is good for 25K, @240V, and 18K, @ 277/480V or 480V.
The "H" stands for "high interrupting rating".


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