24v power supply AMP rating?

[scampa123]

Can anyone tell me how many amps the 24v power supply is rated for?

I'm receiving an enclosure today which has power running into it but it cannot handle anything over 6amps (in which case I can simply plug the printer directly into the wall)...

Thanks!!

-S

[ednisley]

it cannot handle anything over 6amps

If that's the rating for the enclosure's 120 VAC power sockets, then it's good for 720 W.That's more than enough for the few hundred watts drawn by M2 at full throttle, plus all the usual aftermarket LED bling.

Most of the power (maybe 200 W) goes into the platform heater, most of the rest goes into the four stepper motors (100-ish W), and what's left ends up in the extruder heater (IIRC, V4 = 40 W). The LEDs & fans and other frippery don't amount to much at all.

If you're in the 240 VAC part of the world, then the enclosure is good for 1440 W, but anything dissipating that much power in a closed box will be indistinguishable from a toaster oven ... [grin]

[scampa123]

Thanks Ed!

But ultimately everything is powered by the 24v power supply for the M2... Do you know the AMP rating of the power supply? As long as it's 6amps or lower, I'll be able to plug directly into the enclosure's enclosed power plugs....Otherwise they left a way to route wires out of the case and I could plug directly into the wall...

I'm just looking at my options!!

Thanks again!!

[wmgeorge]

Resistive Wattage is calculated VxA or 120 x 6 = 720 Watts. There is also a Power Factor to be factored in, but since this a is DC output power supply I am not sure what that would be. But 720 Watts is a lot of power for a 3D printer, I think the answer above stated 200 watts for the bed and I would assume the extruder heater might be as much as 50 watts. Misl stepper motors and the fans might add another 100, still well below the 720 Watts you said you had.

Short answer, I don't have the total wattage required for the M2.

[ednisley]

Do you know the AMP rating of the power supply?

Nope; I'm running a rather hacked M2.

However, when you open the fancy power supply case, you'll find a label on the actual supply brick inside telling you everything you need to know.

For example, the no-name 24 VDC supply I'm using looks like this:

24 VDC power supply label

The key part is over on the right: 115 VAC 6.5 A or 230 VAC 4.0 A

That's under full load and will be more-or-less proportionally lower for lighter loads. This supply has truly abysmal efficiency at full load; so it goes.

FWIW, I'm running a hotrod heated platform from a separate 40 VDC supply through a solid-state relay, so the 24 VDC supply has a lighter load and more headroom than you'd expect.

[scampa123]

Thanks Ed...maybe I'll disassemble the case of the power supply to see..

I appreciate it!!

[rpollack]

The power supply is 450 watts (24v 18.8a)

Rick

[scampa123]

Thanks Rick!