Recent content by Sal23

Thanks! They are basically same unit. I will go order for 16awg then. Will be taking out the rings and replace them with Deutsch connector and insulated alligator clips so I can attach them when needed.

Yep, my bad - the link was for a circuit breaker. Correct link: https://www.amazon.com/PowMr-Battery-Equalizer-Voltage-Balancer/dp/B07L8WKKC3 Yeah, I figured the same about what you mentioned about balancing - there have been various videos on their balancing currents. Better than 1A max...

If any one has one of those ha02 balancer (48v for 4x12v with 10A max balancing current),will appreciate finding out what is the wire gauge. I don't have the balancer in hands at the moment but need to order some parts for wire extension - so, need to know the gauge. This is the balancer I have...

Nah, I feel good about learning from you folks about how to parallel charge correctly and dangers to avoid. So, I am happy to spend that time and money. Cost of education imo. Failsafe design to allow for worst mistakes. Hence, appropriate fuses (to handle short-circuit current of ~9ka per...

@robbob2112 , separate busbars indeed. And @sunshine_eggo is right! I have made a quite expensive and time-consuming short-circuit :) Headslap moment, and thank you folks for helping me figure this out. Much appreciated. Visuals below. Here are the diagrams of two scenarios. When batteries are...

I have a Victron 12V 30A charger. I need to charge the 48V 4S2P bank to 100% SOC before syncing to Victron Smartshunt so SOC can be tracked going forward. Also, I might repeat it on other setups I am helping others with. I wired up a 4 way parallel connection with a 100amp dual busbar and MBRF...

I am trying to do similar setup (victron 12v 30A charger - connect it to charge four groups of 12V batteries in parallel) - every battery positive terminal fused (MBRF 50A). But, I didn't realize each positive connection should also have a switch to keep the circuit open. It seems that without...

About "balanced", yep, I am familiar with that scenario. What I meant was that the load imbalance is not significant enough for extended period of time, like 30+A for say 10+ minutes. Bursts might be ok if it cools down enough in between. Most of the loads are 240v, including appliances. So...

Yep, load shedding indeed when poor pv production and grid not available. Load is almost evenly balanced in electrical audit. So, yeah, autotransformer should be fine for now instead of a transformer. If not, your suggestion about bigger transformer comes into play. Appreciate the time you...

200A transfer switch is overspecc-ed, like the 200A main panel. BTW, this is for grid backup, not for off-grid. House peak load is not more than 15KW (with some in-rush current when HVAC starts up - within specs of 23KW peak of inverter). It is Victron Quattro15KW 230V model, paired with100A...

Work is for NJ zip code 08502, near Bridgewater area. BTW, we already have a contractor to help the electrician with their work (if needed - electrician's call). The house already has grid-tie solar (11.6KW inverter). I added Quattro 15KW 230V with AutoTransformer (to create L1,L2 and N) and...

Yep, figured. Thank you very much for all the help!

Thank you. Any reason it should be 150A, not like 50A (since it is for battery charger which will put out max 30A at 12V, 24V max)?

Is there a 1P 50A+ fuse holder for cylindrical class T fuse I could use, instead of Bussmann T-60060-1CR fuse holder. It is hard to find and expensive when available ($40+ including shipping and taxes). Fuse is Bussmann JJS-50. Image below. This is to protect a standalone 12v 30A battery...

Thank you, @DIYrich. NC contactor is what I was looking at. Something like this. Is that what you are suggesting (that is, describing how these contractors work, through 24v power supply to magnetically keep contacts closed)? If so, would you have a reliable contactor recommendation for US grid...