Is there a product that can limit current flow to 10 or 12amps in a 240V system? Grok has suggested that a Crydom SSR may be able to do this.
Hello @geoffrethus,
Please tell us more about your project.
My natural reaction is to recommend a conventional circuit breaker but there may be other considerations.
For example, there is a distinct difference between a UL 508A rated branch protecting circuit breaker and a UL 1077 supplementary protector as described in this article.
Best wishes,
APDahlen
I have a 12v battery system in a truck connected to a Safiery 3000W inverter to supply 240V AC. I would like to recharge my 12v batteries in an RV through a 3000w inverter, 240v down to 12v. The problem is the the current flow through the RV inverter is too high, consequently causing the truck inverter to isolate. The inverters are not capable of limiting current draw. Hope this makes sence.
Thank you, @geoffrethus,
By my understanding, the inverter is designed to provide a constant 12 VDC. It will attempt to provide whatever current is necessary to do so thereby overloading the 240 supply.
We could use a large resistor to limit the current, but I don’t think you would be happy with the results as the resistor will be large, it will dissipate considerable energy, and it will take additional time to charge the battery, the battery will never fully charge. Here I assume a lead acid battery with a typical charge voltage of 13.8 VDC.
Recommend purchasing a dedicated battery charger. To prevent trips, select the charger to draw less current than the trip point of your system.
For example, if you purchase a 10 A charger, it will provide approximately 140 W to the battery. This equates to about 0.7 A on the 240 VAC side.
Sincerely,
Aaron