They can protect a pre-war transformer they were made for. You can load test a short to see where they trip. I would guess no two are the same.
I would not trust them on newer stuff. To many better options out there.
Joined 1-21-2011 TCA 13-68614
Kev, From The North Bluff Above Marseilles IL.
I have two Prewar Lionel 91 circuit breakers. One has two terminals A and B. The other has three A, Low and High. Can anybody tell me at what level these should trip? Are they reliable enough to protect the transformer?
Any help is greatly appreciated
Banks, Proud member of the OTTS TCA 12-67310
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