Luc,
Are you sure that DC means the output rating and not the input. I have had to deal with solid state relays for many years, when they say DC 220 Volt 40 Amps they mean the input is DC usually like 3 to 32 volts DC input and the output is 220 Volts AC at 40 Amps. These relays will not work with a DC output load but there are special SSR's that will handle a DC load but I do not believe what you have will, the output devices on a relay like you have is usually back to back SCR's (or Triac) and with a DC load they will latch on and not control anything. Also speed is terrible, these type relays are built for 60 HZ use. There is one other thing you should know, there are two types of SSR's, one will only turn on at zero crossing and the other type will turn on at any time (phase control relays) do you know what type you have? On Crydom relays phase control types are designated by a -10 at the end of the part number. Hope this helps.
« Last Edit: 2010-03-15, 18:21:19 by Room3327 »
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