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What are the physical differences between a QO molded case switch and a QO circuit breaker?

Issue:  
How is a QO switch different from a QO breaker in appearance?  Are there different markings or labels identifying it?  

Product Line:  
Miniature circuit breakers

Environment:  
QO Circuit Breakers and Molded Case Switches

Cause:  
Need to know if device has overcurrent protection

Resolution:  
The molded case switch has a black trip window instead of a clear window, the molded case switch will not have a current rating number on the toggle handle, and the molded case switch will have a sticker on the side of the breaker indicating that it must be protected by an upstream overcurrent and short circuit protective device.  
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