Wiring 3 SSR's - Request for Direction

Chanabra

Hello,

I have wired a few 3d printer's previously with a SSR controlling them hotbed, the hotbed having a redundant thermistor (seemycnc - drill hole on side of plate and add extra thermistor) as well as a Thermal Cut Off wired with my HighTemp RTV Gasketed 1000W SIlicone hot bed.

I know it is quite a bit excessive for my hot bed which is 400x400, but I do not wish to buy another. Also, living in the USA, I am at 120V, I almost wish I had bought 220V back when I purchased it and used a step up transformer - anyone hear of any success like that?
Back to my story: I have one SSR that will be powering the hot bed, I also have a sealed enclosure and a 400W PTC Heater, and a low wattage but mains powered in-line exhaust fan that is going to venting the printer outside when X temperature is reached.

Because of my 1000W hot bed, I made the assumption that between that, the PTC 400W heater, my inline fan, my 3d printer, all the neopixels, that I should have a separate IEC Cable powering the 1000W Hotbed, 400W PTC Heater and in-line exhaust fan.

I have this roughly all wired up and I have taken time and care to make sure all grounds are connected where they should be.

My big question here is: IEC CABLE --> FIltered, Fused, IEC Inlet --> Live WAGO + Neutral WAGO + GND WAGO. Then each wago to the appropriate connections for the 3 SSR's.

Is it this simple?
Is there something else I should be doing? Possibly resistors between the wago and the SSR or something?

I just want to make sure I am doing everything safely. Thank you to anyone who contributes.

fcwilt

@chanabra said in Wiring 3 SSR's - Request for Direction:

My big question here is: IEC CABLE --> FIltered, Fused, IEC Inlet --> Live WAGO + Neutral WAGO + GND WAGO. Then each wago to the appropriate connections for the 3 SSR's.

Could you tell us a bit more about what you mean by appropriate connections?

There are no fundamental problems with the setup but it does need to be wired correctly.

Thanks.

Frederick

achrn

@chanabra said in Wiring 3 SSR's - Request for Direction:

My big question here is: IEC CABLE --> FIltered, Fused, IEC Inlet --> Live WAGO + Neutral WAGO + GND WAGO. Then each wago to the appropriate connections for the 3 SSR's.

Is it this simple?

Yes.
Sounds good to me, assuming your wiring size is appropriate, fusing and filtering is sized appropriately.
WAGOs are good, btw - more reliable than most forms of connector (or maybe, more foolproof - more difficult to do badly / dangerously).

Is there something else I should be doing? Possibly resistors between the wago and the SSR or something?

Not that you should be doing, in my opinion. You don't want to add resistors to the mains wiring.

You could put a RCD in the system (I think that's probably a GFCI to you, though that's a silly name for it, imo) if you want more protection. Personally, I don't have anything additional for my printers - just the RCD that's on the sockets circuit at the consumer unit (distribution board for the house).