Remote Control Relay Launcher

[rbeckey]

I was a member of the old forum. It has been years since I posted, though I have occasionally stopped by to visit. I need some advice and I think this is a new question.

I have resurrected plans to build a custom launch controller, this time as wireless as possible. Electronics is not my strong suit. These are the specs of a wireless relay I found online:

Frequency: 315 or 433 MHz
Channel: 1 CH
Control Modes: Toggle, Latched, Momentary
Coding Type: Fixed code or Learning code
Coding Setting: By learning
Power Supply (Operating Voltage): DC12V±1V
Maximum Working Current: 20A
Maximum Power: 240W/12VDC

Does anyone see a problem with these specs that make it unsuitable for use for anything from low to mid power? I will set them to momentary and include a switch in the circuit that isolates the clips while attaching them. There is a matching security code for the remote and the receiver.

I have two possible plans. One involves a central relay box for three or four pads that includes a 12v 18ah battery that I already have, several relays and wire runs to each pad. The other involves making a small unit for each pad with a smaller battery and one relay. More expensive but less wire and kind of cool to just drop a box off at the pad and walk away. The price for the wireless relay itself is low enough that I likely couldn't build for the same money.

Thanks in advance.

 

[rbeckey]

The company producing the remote control relay sent me the attached diagrams. The one on the right doesn't look right to me. I admittedly don't know much about it. Can someone explain it for me?

 

[cwbullet]

B and C are your application or relayed controlled leads. I am not sure if it would work, but it looks like ti should.

 

[rbeckey]

Thanks for the reply. It looks to me that the diagram on the left and the diagram on the right are completely different. I get the one on the left, that is how I believed that the circuit would look. The one on the right doesn't make any sense to me. Which one is correct, or are they used for different purposes?

 

[cwbullet]

I think one is dc and the other is ac.

 

[rbeckey]

Got it now. The written instructions are not by a native english speaker. After puzzling over it a bit I think I understand better.

 

[iter]

I have something very similar and it works fine. I'm using this set: https://www.amazon.com/gp/product/B005TX3AVE/?tag=skimlinks_replacement-20

To it I add alligator clips and a battery connector. To make it NAR-legal, it needs an "interlock."

Ari.