Panel breaker requires 2 poles but teams four space

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hhsting

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I have 240/120V single phase 200amps Square D panelboard. The panelboard schedule shows 150A feeder breaker that takes up four space but it’s 2 poles.

The reason given is that unless a panel is ordered with subfeed breakers greater than 125 amps, or 150 amps, depending on the manufacturer, to fit a larger breaker, in this case a 150 amp breaker in an existing Square D panel, most manufacturer frame sizes will not fit into a standard “two pole” breaker frame size and requires a four pole frame size.

Would above be not in compliance with any NEC 2014 code section?
 
Edit the following post #1 below:

I have 240/120V single phase 200amps Square D panelboard. The panelboard schedule shows 150A feeder breaker that takes up four space but it’s 2 poles.

The reason given is that unless a panel is ordered with subfeed breakers greater than 125 amps, or 150 amps, depending on the manufacturer, to fit a larger breaker, in this case a 150 amp breaker in an existing Square D panel, most manufacturer frame sizes will not fit into a standard “two pole” breaker frame size and requires a four pole frame size. This is NOT a “four pole breaker” but rather a two pole breaker that requires 4 positions to fit into the panel due to its increased size.

Would above be not in compliance with any NEC 2014 code section?
 
This is common. We've been installing 3 pole 150 amp Square D CB's that require 6 slots in the panel.
 
hhsting said:
Ok but I this case it’s 240V single phase 2 pole 150A breaker that require 4 slots. Would that be common as well and no code issues with that?
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Why would there be a potential code issue? The manufacturer of the panel also makes the circuit breaker, if they design it so four slots are required for a 2 pole CB what could possibly be the issue?
 
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