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What is the difference between a HGA and a HGL breaker?

Issue:
What is the difference between a HGA and a HGL breaker?

Product Line:
Circuit Breakers

Environment:
Electrical Distribution Equipment, H frame, J Frame 

Cause:
Need to discern between the two similar breakers

Resolution:
HGA is an I-line style circuit breaker, for mounting only onto I-line panelboards or I-line distribution sections of QED switchboards. It has an I-line connection on one end, and lugs on the other end.
HGL is an Unit mount style circuit breaker, for mounting in devices that do not require an I-line connection. It has lugs on each end of the breaker.
See the picture below to compare them.

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