Someone may know the answer to this off-topic question about an hvac capacitor. The capacitor on my new residential hvac system is rated "440 VAC/B". I know what the 440 VAC is--but what it the /B??? I've googled it many different ways but am having trouble finding the answer. Curious because I like to keep spare capacitors around, but now am unsure if a regular "440 VAC" rated cap will work, or if there is actually something special about the 440 VAC/B. Photo attached.
I don't know much about Capacitors, but I found this Tolerance chart.:
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer." I have learned more by being wrong, than I have by being right.