On Wed, 01 Jun 2016 20:38:08 -0700, DaveC wrote:

http://imgur.com/yIx0dC6

Original on the left, purchased replacement on the right.

Questioning whether these are equivalent for an old General Electric motor
starter overload (CR106).

Seems like slightly different approaches to get a bimetalic bend effect when
a specified current flows through each of these. One requires a resistance
wire to heat the metal, whereas the newer one incorporates the resistance in
the metal? Is that what’s happening?

Does the element do the physical “tripping” of the OL, or do these do
nothing more than generate heat which heats up the separate mechanism that
opens N.C. contacts?

Thanks.

Measure the resistances!


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com