partimer31

My fellow electrician, in Part One the talk was on Cutler-Hammer XO
20 amp., 120 VOLTS A.C. circuit breaker.

Now in PART TWO, I'll supply you the information on the other circuit breakr I purchase at a local tag sale.


On one side of this breaker is printed: "MURRAY MFG. CORP. BK'KYN, 16 N.Y. * U.S. PATENT NO. 2072932-2200109-2360922 * MADE IN U.S.A.
C.B.-5204L

It measure 3-3/4" in lenght, 7/8 of an inch wide.

Looking the bottom of this breaker you will find no clip or clips that would
snap on to the electrical panel energize bus.

The breaker is a 20 amp., single-pole, with a paper label beneath the
switch handle, with the following writing; M Murray * STYLE B

There is a connection screw located at each of this breaker.

With the breaker handle switch in the off position, it points to end
connections screw, that located beneath has a paper label with these
word printed on it; " UND. LAB. INC. INSP. * CIRCUIT BREAKER * 1 POLE
120 V. A.C UNIT M Murray * AV - 81 (my note: I believe this is the load
side of the breaker), (my guess is the opposite side, with a termination
screw, would be the line in. W

If doen't look easy to install because both ends the would hold down, look
like the hold down end of SD HOMELINE circuit breaker.

Any thoughts, also if any one has panel this breaker would be install in
perhaps that could send a photo.

Thanks

480sparky

Sounds like a DIN rail-mounted breaker.

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partimer31

480 Thanks for the picture, I got a lot to learn on how to get things like
that into the reply post.

The picture was interesting, but that now it. But the DIN RAIL
got me thinking.

I with I know how to draw it out on these post.

The circuit breaker, single pole, has two open, scew connection terminals
at each end.

I make mistake, then maybe I read your picture illustration.

Again thanks.

partimer31

Fig. 3 shows only one terminal connection screw outside the breaker, and believe the
would be were the load wires on.

What I don't see is a screw opposite the one where the load connects. This other
screw looks just like the one the load wire connect to.

480sparky

That's what shows up in a patent search. Maybe Murray modified the design for manufacturing purposes.

How about either of these:

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partimer31

Again my thanks. I now keep an open mind about this breaker.

vinster888

and 480 with his bottomless pit of awesome graphics

MDShunk

That was the murray breaker they used in some of their real old furnace disconnects. They mounted in a can.

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partimer31

Thanks for your post, not clear to whom your answer is directed to?

480sparky or partimer31

480sparky

Et al.

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I_get_shocked : Online now and knows where to look up the answer.

To anything!