UPDATE: the NH00-fuse has an Icc of 25.000A, not 120.000A as stated in the video. 🎁 Free diagrams: cleversolarpower.com/free-diagrams/ 📖 My best-selling book: cleversolarpower.com/off-grid-solar-power-simplified
You better make sure your recommendations are correct, the NH00 fuse from siemens does not have an ICC of 120kA at DC voltage, it's only 25kA. Have a look in the datasheet.
Renogy sells an ANL fuse rated for 72v and provides a spec sheet. I'd be interested in your thoughts on. It is the only ANL fuse I can find rated more than 24v. Thanks for the valuable information.
Good info.I was looking to upgrade fuses and battery shut-offs.I have cheap fuse you showed ,top left one showed in group of 4. My positive shut off post gets warm from 800 watts using 1500 watt heater on low.I know heat makes them fall apart.Bussman 187 series push button disconnects are $55.
I recommend using the disconnects switches from bluesea systems. They have less resistance. Read my article on my website about 'how to calculate power loss in a circuit'
Thanks for a super clear and informative video - So i am correct im thinking that with a 12v 105ah lithium battery i would be ok to fuse the main connection from the battery with a suitably sized midi or mega fuse ? 105x10 = 1050 amps max during short - IIC for a midi fuse is 5000A and 2000A for a mega
Hello and congratulations for the tests with the fuse I would like to ask you something I have a large LFP battery pack (EVE 280K) in 9S 4P or 28 volts 1120AH and my voltage converter is 4000 watts to 28 volts which fuse do you recommend between the + of the converter? 150A? fuse like yours or a fixed fuse like VICTRON? THANKS laurent
I have found Class-T fuses lower than 100A from Bussman and LittelFuse in my searches. Am looking to get an 80A (something like LittelFuse JLLN080P 80A 200KA) for a 48V LiFePO4 battery but no clue which holders will work with that. Wish they were sold as a pair.
The holders are sold separately. Make sure you got the right one. There are different ones for different currents. I think there are two types sold by bluesea systems.
There are two from Blue Sea systems, they are both too large. One is for 110-200A and the other is from 225-400A. I can't find the one I need which is for 70-100A.
@@ML-hf6ii I experienced the re-bridging of the fuse element when I used a 80 amp ANL on my 48 volt AGM pack. I had used the ANL as a temporary fuse and it became the permanent. One time my voltage was low on batteries, I plugged into shore/ utility to recharge and that higher than normal current took out the 80 amp ANL, which was still arcing after the main element blew. This video has great info.
@@ML-hf6ii You can trust Victron's product to perform as they specify by way of their reputation. 95% of other ANL fuses are no name copies. I'm sure Victron can elaborate on how their ANL fuse is higher voltage capable.
except choosing fuse 10 times more than battery capacity, there should be like a precise formula with battery voltage as well, as energy of short circuit battery or power source is Amperage x Voltage x time ....
It is not the fuse rating. It is the short circuit fuse rating, these two are totally different. As you can see on the table different voltages have different short circuit current.
An MCB is more expensive than a fuse. MCB's are used in AC switchboards. In a DC circuit the fuse wil seldom trip, so that's why we use a fuse. However, and MCB is used as a disconnect between the solar panels and charge controller.
@@cleversolarpower when you were saying "fuse/breaker" is US$15 dollars, I was thinking that an AC MCB is US$6 and doesn't have to be replaced when it activates.
Please help, i have a 5000watt inverter, 4 x 200 amp hour AGM batteries , and 4 230 watt panels. I think i need a 400amp Class T fuse, but i dont know where to put it ? 12v system Please advise.
UPDATE: the NH00-fuse has an Icc of 25.000A, not 120.000A as stated in the video.
🎁 Free diagrams: cleversolarpower.com/free-diagrams/
📖 My best-selling book: cleversolarpower.com/off-grid-solar-power-simplified
This is the best summary in this subject so far! Thank you.
Interesting and valuable information, thank you.
If you show a example with Rate Table for ex. Class-T then this video will be perfection.
Thanks for sharing and educating us with your knowledge. Its much appreciated and Merry Christmas to you.
Thank you! Happy holidays!
You better make sure your recommendations are correct, the NH00 fuse from siemens does not have an ICC of 120kA at DC voltage, it's only 25kA.
Have a look in the datasheet.
Yes indeed, the DC Icc is 25kA. I didn't make the distinction between AC and DC. Thanks for your comment.
Thanks , very useful data.
are there resetable fuses / breakers out there that you recommend that can do 300amps or more?
Good info.
Renogy sells an ANL fuse rated for 72v and provides a spec sheet. I'd be interested in your thoughts on. It is the only ANL fuse I can find rated more than 24v.
Thanks for the valuable information.
I've seen littlefuse have 80VDC fuses, you can check it on currentconnected: www.currentconnected.com/product/lynx-cnn-shunt-fuse/
Good info.I was looking to upgrade fuses and battery shut-offs.I have cheap fuse you showed ,top left one showed in group of 4.
My positive shut off post gets warm from 800 watts using 1500 watt heater on low.I know heat makes them fall apart.Bussman 187 series push button disconnects are $55.
I recommend using the disconnects switches from bluesea systems. They have less resistance. Read my article on my website about 'how to calculate power loss in a circuit'
Thanks for a super clear and informative video -
So i am correct im thinking that with a 12v 105ah lithium battery i would be ok to fuse the main connection from the battery with a suitably sized midi or mega fuse ? 105x10 = 1050 amps max during short - IIC for a midi fuse is 5000A and 2000A for a mega
That is correct.
Hello and congratulations for the tests with the fuse
I would like to ask you something
I have a large LFP battery pack (EVE 280K) in 9S 4P or 28 volts 1120AH and my voltage converter is 4000 watts to 28 volts
which fuse do you recommend between the + of the converter?
150A?
fuse like yours or a fixed fuse like VICTRON?
THANKS
laurent
A lot of the 48 V systems I see use mega fuses, and I didn’t see what you recommended for charge controllers? 48 V system in USA
Some mega fuses are rated for 58V. But people copy from other setups, so they can be faulty. 58V rated mega or midi fuse for charge controllers.
I have found Class-T fuses lower than 100A from Bussman and LittelFuse in my searches. Am looking to get an 80A (something like LittelFuse JLLN080P 80A 200KA) for a 48V LiFePO4 battery but no clue which holders will work with that. Wish they were sold as a pair.
The holders are sold separately. Make sure you got the right one. There are different ones for different currents. I think there are two types sold by bluesea systems.
There are two from Blue Sea systems, they are both too large. One is for 110-200A and the other is from 225-400A. I can't find the one I need which is for 70-100A.
Where can you find T-class for $40? I'm just checking T-class JJS-350A/60/V and it is...$250! a piece😢 the fuse blosk itself is $120. So expensive.
Try Amazon. You can try nh00 fuses as well, they are close to being the same.
@@cleversolarpower yeah, trying but if you want to go for 200A+ mark for DC the prices are kinda shocking
Why we can't use ANL fuse for 48v LifePO4 batteries pack?
The Icc rating of an ANL fuse is too low.
@@cleversolarpower why then victron use them? for example they recomend using "Victron ANL 80V 48V"
@@ML-hf6ii
I experienced the re-bridging of the fuse element when I used a 80 amp ANL on my 48 volt AGM pack.
I had used the ANL as a temporary fuse and it became the permanent. One time my voltage was low on batteries, I plugged into shore/ utility to recharge and that higher than normal current took out the 80 amp ANL, which was still arcing after the main element blew. This video has great info.
@@ML-hf6ii
You can trust Victron's product to perform as they specify by way of their reputation.
95% of other ANL fuses are no name copies. I'm sure Victron can elaborate on how their ANL fuse is higher voltage capable.
@@deanb949 read comment above
Why do i use some people using DC circuit breaker instead of fuse? Isnt DC breaker better in the sense its not single use?
Normally we use fuses with DC because it's cheaper. And they are not blowing. AC breakers can blow more often so we use breakers.
What size fuse for 920ah 48v is why I’m here.
You need to figure out what load you want to power for the fuse size. For the fuse type, you likely need class-t or NH if it's lithium.
@@cleversolarpower 6k watt inverter with Li bat
except choosing fuse 10 times more than battery capacity, there should be like a precise formula with battery voltage as well, as energy of short circuit battery or power source is Amperage x Voltage x time ....
It is not the fuse rating. It is the short circuit fuse rating, these two are totally different. As you can see on the table different voltages have different short circuit current.
Why can you not use an MCB instead of a fuse?
An MCB is more expensive than a fuse. MCB's are used in AC switchboards. In a DC circuit the fuse wil seldom trip, so that's why we use a fuse. However, and MCB is used as a disconnect between the solar panels and charge controller.
@@cleversolarpower when you were saying "fuse/breaker" is US$15 dollars, I was thinking that an AC MCB is US$6 and doesn't have to be replaced when it activates.
my 100a nh have 120kA at 500v dc icc
What fuse is that exactly? I quite positive that is AC only (120kA ICC).
Please help, i have a 5000watt inverter, 4 x 200 amp hour AGM batteries , and 4 230 watt panels. I think i need a 400amp Class T fuse, but i dont know where to put it ? 12v system Please advise.
No further than 2 feet from the battery but as close as you can and on the positive cable
there are a lot anl fuses for 48V. Why I can't use them?
You can if they are rated for 58V. Most are not. ICC also plays a role.