Tim Schwartz wrote:
Hello all,

I'm trying to find a replacement thermal circuit breaker (Schematic
location TB1 and TB2) for a Hafler DH-500 the part number is SF-024 in
the earlier manual, or 332002 in the later manual. The part is no
longer available from Hafler.

Try the various surplus dealers. You probably want a N/C thermal switch that
opens around 70-80 C, and will handle 15 amps of 120 VAC.

For example:

http://www.electronicsurplus.com/dictionary/cat2115.htm

http://www.allelectronics.com/cgi-bi...765&type=store

http://www.surplussales.com/Thermal/Theraml-1.html

http://www.meci.com/default.asp?mode...s&category=515

http://www.mainlinegroup.co.uk/mless...sort=05&page=2