TEFC- are there pros and cons?

[adl6009]

I am looking to replace my pump motor and noticed the enclosed motor. I haven't seen this before and hoping for some information. The reason I need a new pump is that I let a drip continue too long and it rusted the cover on my 5yo whisperflo. Would this casing have protected the motor from this kind of damage? Any disadvantages? Thanks.

Thw one I saw-Pentair WhisperFlo Pump 1.5HP 208/230v TEFC seems close to my existing pump.

 

[JamesW]

The TEFC motor has a back mounted fan that is annoyingly loud at full speed. I would recommend a variable pump or motor.

I guess that covers the prose and cons.