Forum: µC & Digital Electronics rhl 401 relay replacement or substitute

Author: Sam Telford (tickman)
Posted on:
Attached files:

Rate this post
0 useful
not useful
I have an old Lauda thermostatic water bath (from 1978 or so) that 
worked fine but suddenly lost temperature control (no cooling).  The 
relay appears to have failed.  I have removed it and have googled up and 
down but the RHL 401-03, 6V 1004 24V does not seem to be available at 
all.  A picture is attached.  Its dimensions are 36x30.5x15.5 mm   Does 
anyone have any idea as to whether there might be a source for older 
relays, or whether there is a suitable substitute?  Many thanks.


Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in.

Rules — please read before posting

  • Post long source code as attachment, not in the text
  • Posting advertisements is forbidden.

Formatting options

  • [c]C code[/c]
  • [avrasm]AVR assembler code[/avrasm]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]

Bild automatisch verkleinern, falls nötig
Note: the original post is older than 6 months. Please don't ask any new questions in this thread, but start a new one.