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#7873 - 02/26/02 06:22 PM Square D breakers
Nevin Offline
Member

Registered: 05/28/01
Posts: 31
Loc: Lititz PA 17543
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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#7874 - 02/26/02 08:32 PM Re: Square D breakers
Elzappr Offline
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Registered: 12/20/01
Posts: 273
Loc: Oregon
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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