Cyclone 3000 vs CYC X1 Pro?

[john61ct]

I found only a few types of active equalizers.

Yes you already stated that. In case I wasn't clear, that does not reflect the reality of the market, just due to your limited skills or time spent searching.

 

[sn0wchyld]

Never saw such balancer. It's like active BMS, despite all BMSs available are passive discharge balancing type.
Circuit brackers can be small enough. https://electricscooterparts.com/circuitbreakers.html https://www.worldelectricsupply.com/shop/en/p/ge-industrial-solutions-thqp140-1-pole-120-240-volt-40-amp-circuit-breaker-4102

Forr me is small this:
ip003650.jpg

Something to be aware of is that those fuses aren't rated for high voltage DC (also a concern for breakers). They wont extinguish the arc very quickly, so stuff around it will melt - and if that stuff is batteries then that fuse can be the cause of the thing its supposed to prevent - fire. Its also why you cant find a (relatively) small, high current DC breaker. if you're only talking <50VDC then you'll probably be ok (dont quote me though) but >50VDC you should start looking at DC rated brakers, desptie their size. 62A breakers with a slow trip curve (look for ones intended for motors etc) will work fine at bursts of 120A - they'll usually give you 10-20 seconds at 2x their rated current. Look for D or K curve DC breakers - they will only instantly trip at ~10x the rated trip current, anything below that will take between seconds and minutes to trip. Ive used a single 62A breaker on my stealth with adaptto at 120A and its never tripped, though trips fast at 300A. Best part is they're only as big as a standard breaker you'll have in your house's breaker pannel - see this one (20A but can get these up to 62A, 100A is only slightly larger):
https://au.rs-online.com/web/p/products/4886971?ef_id=EAIaIQobChMIj8C6vMPW5QIViIePCh1uywN8EAQYAiABEgJ-3vD_BwE:G:s&s_kwcid=AL!8733!3!99325706314!!!g!314938193199!&cm_mmc=AU-PLA-DS3A-_-google-_-PLA_AU_EN_Automation_And_Control_Gear_E-_-Sensors_And_Transducers-_-PRODUCT_GROUP&matchtype=&aud-386146036711la-314938193199&gclid=EAIaIQobChMIj8C6vMPW5QIViIePCh1uywN8EAQYAiABEgJ-3vD_BwE&gclsrc=aw.ds

another benefit is they can be used as a on-off switch. Most are rated for 10,000's of cycles of 'no load' switching. So you get protection and a load break/on off switch all in one, thats actually rated for what you're doing.

 

[Andrewol]

thanks for the tip. I'm going to use solar DC breaker like this.
https://www.ebay.com/itm/MIDNITE-SOLAR-MNEDC100-CIRCUIT-BREAKER-100A-150VDC-1-POLE-PANEL-MOUNT/263279347610?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055359.m2763.l2649

 

[lukashanak]

I dont think, that fuse is bad choice if you mount it outside battery box.

 

[Andrewol]

If your reply was related to my comment, I think the main drawbacks of such fuses are resistance and one time use. Resistance is wasted battery energy. It can be overrated to avoid such issue somehow, but breaker is better in this regard I think.

 

[sn0wchyld]

If your reply was related to my comment, I think the main drawbacks of such fuses are resistance and one time use. Resistance is wasted battery energy. It can be overrated to avoid such issue somehow, but breaker is better in this regard I think.

breaker should be ok <100A - but cant find any info on trip curves other than this:
https://d1819pwkf4ncw.cloudfront.net/files/documents/midnite-solar-breaker-time-delay-values-352837.pdf
if its an 'instant trip' then anything >100a may trip instantly. a medium or long one (if you can find it) would probably be better.

 

[Andrewol]

breaker should be ok <100A - but cant find any info on trip curves other than this:
https://d1819pwkf4ncw.cloudfront.net/files/documents/midnite-solar-breaker-time-delay-values-352837.pdf
if its an 'instant trip' then anything >100a may trip instantly. a medium or long one (if you can find it) would probably be better.

I found only this either. Anyway it should trip at 130-150A. I prefer it to be as fast as possible. In case of short time is critical to avoid further mess.