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Revision to Choosing a bed heater

David Crocker

==== Mains voltage AC bed heater ====
 
Use a zero-crossing DC-AC SSR such as Crydom D2425D2425, Kudom KSI240D25-L or Fotek SSR-25DASSR-25DA (note: many Fotek SSRs on sale are fakes, using triacs rated at lower current than the marked rating of the SSR). For 230V bed heaters, SSR-10DA may be sufficient. If your bed heater draws more than about 1/4 of its rated current then the SSR may need a heatsink.
Use a zero-crossing DC-AC SSR such as Crydom D2425D2425, Kudom KSI240D25-L or Fotek SSR-25DASSR-25DA (note: many Fotek SSRs on sale are fakes, using triacs rated at lower current than the marked rating of the SSR). For 230V bed heaters, SSR-10DA may be sufficient. If your bed heater draws more than about 1/4 of its rated current then the SSR may need a heatsink.
 
Take appropriate safety precautions when using a mains voltage bed heater. In particular:

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