I'll take a picture the next time I'm out at this location. All has worked well going on 2 years now. The fuse in the disconnect is larger than I would like, but it was the smallest amperage I could find for that size needed in the disconnect without using a reducing bracket.
I like to say how it is good to give props to those (electricians) and others who do their job right and go above their expected "Duty" Take Pride in what you do-whatever that maybe. If you don't have the time to do it right the 1st time, when will you have the time to do it at all.
@butopiatoo not sure on why you need a neutral on 240 V A/C disconnect but one thing to keep in mind is that anything after your main meter panel such as the sub-panel or beyond that you need to separate your grounds and your neutrals. Take a look at your nomenclature on your air conditioning unit it should say max fuse size that's what you need to size your fuses on an AC per the NEC.
You mentioned that the ground bar could accept a neutral if necessary . That is only permitted at the first point of disconnect . after that point it shall be isolated from ground.
sparky- sorry, it is a 240vac disconnect for a solar array, not and air conditioning unit. bringing back 2 hot legs from each of two arrays (at 240v) a neutral and a ground to a sub panel into a 15 amp 2 pole breaker. assume I'll connect nutral and the ground in the subpanel. then the wiring goes into a meter base (to measure production) and then into the disconnect. the disconnect is fused and that then feeds into the main breaker panel. I'll use a 35amp fuse in the disconnect.
If the fuses were 50 amp on up they would be blade style. Also with air conditioner's/ heat pumps they use what's called a time delay fuse. Meaning the fuse will allow for an over draw in amperage for a short amount of time.
Hey, I appreciate the videos! I'm building an 17kw system and I'm trying to figure out which solar disconnect to get. One Pole, Two pole, three pole? Do I need fused or non-fused? What size solar connect do I need for 180 amps total? Does a three pole 60 amp mean three 60 amp connections? I know I need outdoors for waterproofing. This is a 2019 build house with the main breaker next to the meter outside. Planning to put the (3) 60 amp sub-panel and disconnect next to them outside. I'm splitting the panels from the micro inverters in 9 segment wires runs of 1850 watts. For the subpanel, I was thinking: (3) 60amp breakers (I'll combine the 9 wires into 3 groups of 3 for each 60 amp breaker). That'll give me (3) 60 amps that'll run to the solar disconnect and then to my main breaker panel split into (3) 60 amp breakers. Is that the correct or best set-up? I'd really appreciate any help you can give. I just want to make sure I order the right parts. I will be having a master electrician check my work. I just need to know this to make my diagrams for my planning committee are correct. If I'm correct about the three poles and needing fused, is this the correct one to order? 60amp - 3 pole - Fused www.amazon.com/Siemens-HF362R-60-Amp-600-volt-Switches/dp/B005G936JM/ref=pd_day0_c_60_3/140-4695955-3301365?_encoding=UTF8&pd_rd_i=B005G936JM&pd_rd_r=0691a9e1-5e82-42c7-add8-fca1c06b3825&pd_rd_w=v5QuQ&pd_rd_wg=Hujl4&pf_rd_p=7dbe3bbd-18b1-49e5-b954-f6b0bc9f6310&pf_rd_r=S7DYE8ZG9CKPRD8E1ZVQ&psc=1&refRID=S7DYE8ZG9CKPRD8E1ZVQ
great stuff. Im trying to wire a 2 pole 240v ac disconnect for some solar, and not clear how I bring the neutral back to the main breaker. Very confusing on when the hutral is bonded to the ground and when the hutral and ground have to be kept seperate. thanks for this video. Wish some one would do one on fuses. propersizing, using fuse reducers etc.
put your volt meter or amprobe on VAC put your lead on ground or nut if you have one and the other lead on hot side. The 120/208 system should read 120 from ground or nut to each hot leg ie. phase 1 at 120 the leg 2 at 120 and leg 3 also at 120 and move the lead that you have on ground or nut and put in on phase 1 and the other on phase 2 you should read 208 and the same on phase 2 and 3.
I am changing out a roof top unit for the first time. the disconnect has already been removed... how to I know which is a,b, and c phase if the wires aren't color banded?
Make sure you get a 60 Amp disconnect then. Because good luck finding any 35 amp fuse that can fit in a 100 amp disconnect. The lowest I can find for 100A, is the 70A fuse.
Is it an acceptable practice to just pass your neutral through the enclosure, without landing it on the neutral bar? I know that the ground needs to be landed as you have done, and bonded to the box. But what about neutral? Is the neutral bar a nice-to-have or a need-to-have?
the blue is one fase, the red is one face, the red red is one face. red is 120 and is coming from street, red red is 120 and is coming from the street, question blue also is coming from street? is also hot 120? tnx
Thank you for the comments. It is good to know these types of videos help!
Sparky
I'll take a picture the next time I'm out at this location. All has worked well going on 2 years now. The fuse in the disconnect is larger than I would like, but it was the smallest amperage I could find for that size needed in the disconnect without using a reducing bracket.
I like to say how it is good to give props to those (electricians) and others who do their job right and go above their expected "Duty"
Take Pride in what you do-whatever that maybe.
If you don't have the time to do it right the 1st time, when will you have the time to do it at all.
@butopiatoo not sure on why you need a neutral on 240 V A/C disconnect but one thing to keep in mind is that anything after your main meter panel such as the sub-panel or beyond that you need to separate your grounds and your neutrals.
Take a look at your nomenclature on your air conditioning unit it should say max fuse size that's what you need to size your fuses on an AC per the NEC.
I took a 3phase to the dome once. Brushed it off like a champ!
Friend this switch is wiring in men power cable to tach down or up. Answer me. And retarn cable on down or up.
You mentioned that the ground bar could accept a neutral if necessary . That is only permitted at the first point of disconnect . after that point it shall be isolated from ground.
Thomas Nemeth I saw that too. Good eye.
sparky- sorry, it is a 240vac disconnect for a solar array, not and air conditioning unit. bringing back 2 hot legs from each of two arrays (at 240v) a neutral and a ground to a sub panel into a 15 amp 2 pole breaker. assume I'll connect nutral and the ground in the subpanel. then the wiring goes into a meter base (to measure production) and then into the disconnect. the disconnect is fused and that then feeds into the main breaker panel. I'll use a 35amp fuse in the disconnect.
we don't have those disconnects in australia (240v 1ph /415 3ph), at
least not anywhere i've seen anyway. We seem to rely on Main breakers instead.
Can I ground a ground wire to the metal electrical box itself?
If the fuses were 50 amp on up they would be blade style. Also with air conditioner's/ heat pumps they use what's called a time delay fuse. Meaning the fuse will allow for an over draw in amperage for a short amount of time.
Hey, I appreciate the videos!
I'm building an 17kw system and I'm trying to figure out which solar disconnect to get.
One Pole, Two pole, three pole?
Do I need fused or non-fused?
What size solar connect do I need for 180 amps total? Does a three pole 60 amp mean three 60 amp connections?
I know I need outdoors for waterproofing. This is a 2019 build house with the main breaker next to the meter outside. Planning to put the (3) 60 amp sub-panel and disconnect next to them outside.
I'm splitting the panels from the micro inverters in 9 segment wires runs of 1850 watts.
For the subpanel, I was thinking: (3) 60amp breakers (I'll combine the 9 wires into 3 groups of 3 for each 60 amp breaker). That'll give me (3) 60 amps that'll run to the solar disconnect and then to my main breaker panel split into (3) 60 amp breakers.
Is that the correct or best set-up?
I'd really appreciate any help you can give. I just want to make sure I order the right parts. I will be having a master electrician check my work. I just need to know this to make my diagrams for my planning committee are correct.
If I'm correct about the three poles and needing fused, is this the correct one to order?
60amp - 3 pole - Fused
www.amazon.com/Siemens-HF362R-60-Amp-600-volt-Switches/dp/B005G936JM/ref=pd_day0_c_60_3/140-4695955-3301365?_encoding=UTF8&pd_rd_i=B005G936JM&pd_rd_r=0691a9e1-5e82-42c7-add8-fca1c06b3825&pd_rd_w=v5QuQ&pd_rd_wg=Hujl4&pf_rd_p=7dbe3bbd-18b1-49e5-b954-f6b0bc9f6310&pf_rd_r=S7DYE8ZG9CKPRD8E1ZVQ&psc=1&refRID=S7DYE8ZG9CKPRD8E1ZVQ
great stuff. Im trying to wire a 2 pole 240v ac disconnect for some solar, and not clear how I bring the neutral back to the main breaker. Very confusing on when the hutral is bonded to the ground and when the hutral and ground have to be kept seperate. thanks for this video. Wish some one would do one on fuses. propersizing, using fuse reducers etc.
When installing a 100amp disconnects two of them do you run your wires from house to disconnect or to base, then add wires from base to disconnect
How do u check with the multimeter those fuses or how can I tell if how much current voltage
Could you adapt this to interrupt for a 240v 4 wire plug? Like from a generator?
@ytmachx Could you please refer to code reference,closest I could find is in the 2008 210.63. Does not mention anything in relation to you comment.
what kind of disconnect i have to use for a 150a 480y/277 3 phase motor?
Where's the grounding for a panel like this?
put your volt meter or amprobe on VAC put your lead on ground or nut if you have one and the other lead on hot side. The 120/208 system should read 120 from ground or nut to each hot leg ie. phase 1 at 120 the leg 2 at 120 and leg 3 also at 120 and move the lead that you have on ground or nut and put in on phase 1 and the other on phase 2 you should read 208 and the same on phase 2 and 3.
@ytmachx Yes that is changed in the 2011 Also it is stated 2011 Feed-through conductors, splices, and ...
Please see my description above...
I am changing out a roof top unit for the first time. the disconnect has already been removed... how to I know which is a,b, and c phase if the wires aren't color banded?
I didn't like the smaller ground wire twirling around the blue phase wire. I would have re-positioned it.
thank you for the vid and your channel... can you sometime make a vid on how to test those fuses ?
sorry also the only make two types of fuses for general purpose for lighting and motors and they are either 250v or 600vac.
Mine doesn't have that ground bar
Make sure you get a 60 Amp disconnect then. Because good luck finding any 35 amp fuse that can fit in a 100 amp disconnect. The lowest I can find for 100A, is the 70A fuse.
carultch That is why they make reducing ferrules.
I think you should have included the instruction on a unit possessing a neutral.
Is it an acceptable practice to just pass your neutral through the enclosure, without landing it on the neutral bar?
I know that the ground needs to be landed as you have done, and bonded to the box. But what about neutral? Is the neutral bar a nice-to-have or a need-to-have?
+1 for visible labels
the blue is one fase, the red is one face, the red red is one face. red is 120 and is coming from street, red red is 120 and is coming from the street, question blue also is coming from street? is also hot 120? tnx
Is the Blue Line a neutral line?
No that would be the c phase
Thank you for the explanation.(:
Thank you
Taping around wire, to color code it, is not allowed in our jurisdiction---its already dried and coming off. What about bushings? Messy.
+newtownrea Anything smaller than #6 cannot be phased using tape,Good eye on the bushing!
bonding bushing!!
Help. I replaced two 250v fuse and even after I connect it to the house I still see noooooo power
🖒😉!
please ct coyal caneksan full detils
please define 3 phase disconnect it's for homework and I don't understand any of this it's so difficult
Where is the transformer and contactor.