100 Hz, 20A SPDT Toggle Switch

[soybean56]

Hello,
For a school project I am trying to design a circuit that will allow me to take a single roughly 20Amp DC input and split in between two outgoing lines. I would like for the outgoing lines to "fire" separately; i.e. one ougoing is carrying 20 Amps while the other is carrying none, and then vice-versa.
Ideally, this switching would take place around 100Hz, but anywhere between 60 and 100 would work.
I'm having difficulty finding a switch that can switch between that current and that frequency.
Does anyone have any suggestions?
Thanks

 

[Kral]

Soybean56,
See the following website for a fast solid state relay.
.
https://www.power-io.com/products/hdd.htm
.
Regards,
Kral

 

[soybean56]

I was thinking of using a click PLC to control the switching.

I would have two of those relays hooked up (one for each outgoing current). The current path would be directed by the PLC descision.

Does this sound reasonable?

Kind of like this.



Thanks!

 

[Kral]

soybean56,
I can't read the lettering on the relays, so I can't determine what model SSR you are using, or whether the connections are correct. However, the general scheme seams OK. Just make sure that the control voltage from the PLC is compatible with the SSR control voltage inputs. Good luck!
Regards,
Kral

 

[soybean56]

Right, so I would just have a single PLC where the black line is. The output from the PLC would connect directly to the two relays.

The lettering on the relays states:

1 20 amp with heatsink || 2
0 to 100VDC

Power-IO
Solid State Relay
Maximum ???? Survival

4 - Control: 4 to 32 VDC + 3

Any potential pitfalls you might see? Other than insuring proper connections.
Thanks again

 

[Kral]

soybean56,
Everything looks compatible.
Regards,
Kral