on video how to assemble single phase switchgear in detail

 how to assemble single phase switchgear in detail

Watch this unmissable video by André Mafra until the end and learn step by step how to assemble a single-phase distribution board from scratch. Don't forget to subscribe here on the channel, activate the notification bell and share the video with all your colleagues.

This 127v board will have 4 circuits: lighting, two for outlets and a shower.

The frame can be built-in or superimposed, depending on your installation. As there will be 4 single-phase circuits, we will have 4 single-pole circuit breakers (10, 20 and 40A) + 1 general single-pole circuit breaker of 63A, 1 bipolar IDR of 63A, and another 2 SPD 175V/45kA. As all of this will only occupy 9 spaces on the DIN rail, a 12-key board would do the trick, but I chose a pvc distribution board for 24 DIN standard circuit breakers, so I'll have plenty of spare space. We then assembled the rails, which is very simple, just fit them in and screw them in. I also took the opportunity to fix the neutral and earth buses at once on this distribution board.

Well, here are all the cables passed and arriving at the board. I then start to organize them to put the washers on each one of them and thus facilitate the identification.

Now let's organize the conductors. I always start with neutral. Together the neutral cables, I tie them all with a cable tie. I always go around with the conductors on the side of the frame and then adjust the ends close to the busbar and only then cut them.

I throw the washers behind the cable cut point, measure the length of the cables on the busbar and start cutting, stripping and crimping one by one.

Then, all the neutral cables already crimped, I start to screw them in the bus destined to the connection of all the neutral cables. Note that I cut another piece of 16mm cable and left it below the top rail, this cable that will connect to the output of our IDR ok?

Now it's time to organize the grounding cables in the same way we did with the neutral cables, just follow the steps we did. A 16mm green cable arrives directly from the standard or rod and connects to the bus, from there it distributes the grounding to the other circuits.

Now cut another piece of cable and crimp the ends with double terminals to ground the DPS, as we are going to use two DPS, one for phase and one for neutral, I bridge the 4mm cable which is the minimum recommended for the DPS and go down with just a direct cable to the earth bus, that way they will be interconnected. Finally, just screw this cable onto the bus as well.

After defining the location of each component, it's time to start tinkering with the board's power supply. I always put the general breaker in a point to measure where to cut the phase cable that will feed it. This black cable is 16mm, I've already ringed it as phase A and now I'm going to strip it and crimp the end with a tubular terminal to connect over the main circuit breaker. I leave with this 16mm cable already with the end crimped also under this general breaker and at the other end of it I put a generic terminal to enter together with a bipolar bus above the IDR and bypass through this bus to the SPDs. I used a bipolar bus here to interconnect the phase and neutral that arrive at the IDR to the personal DPS, here's the technical tip.

Then connect the 16mm blue cable to neutral on the IDR output and this cable will lead directly to our neutral bus. Also take another piece of 16mm black cable to interconnect the output phase of the IDR to the circuit breakers that we will place next, here also place tubular terminals at the ends of this cable.

Now here's a tip for those who say they can't cut the bus. How do I place a 12-tooth busbar when it doesn't even fit according to the sequence I installed? Guys, the busbar was made to cut yes and on top of that I chose a single-phase busbar in L.

Finally, it only remained to connect the phase cables of the circuits to their respective breakers. I start with lighting circuit 1, then I put 2 and 3 for the sockets and finally I connect 4 which is for the shower. I check the final tightness of the cables one more time for a loose post.

 how to assemble single phase switchgear in detail

Watch this unmissable video by André Mafra until the end and learn step by step how to assemble a single-phase distribution board from scratch. Don't forget to subscribe here on the channel, activate the notification bell and share the video with all your colleagues.

This 127v board will have 4 circuits: lighting, two for outlets and a shower.

The frame can be built-in or superimposed, depending on your installation. As there will be 4 single-phase circuits, we will have 4 single-pole circuit breakers (10, 20 and 40A) + 1 general single-pole circuit breaker of 63A, 1 bipolar IDR of 63A, and another 2 SPD 175V/45kA. As all of this will only occupy 9 spaces on the DIN rail, a 12-key board would do the trick, but I chose a pvc distribution board for 24 DIN standard circuit breakers, so I'll have plenty of spare space. We then assembled the rails, which is very simple, just fit them in and screw them in. I also took the opportunity to fix the neutral and earth buses at once on this distribution board.

Well, here are all the cables passed and arriving at the board. I then start to organize them to put the washers on each one of them and thus facilitate the identification.

Now let's organize the conductors. I always start with neutral. Together the neutral cables, I tie them all with a cable tie. I always go around with the conductors on the side of the frame and then adjust the ends close to the busbar and only then cut them.

I throw the washers behind the cable cut point, measure the length of the cables on the busbar and start cutting, stripping and crimping one by one.

Then, all the neutral cables already crimped, I start to screw them in the bus destined to the connection of all the neutral cables. Note that I cut another piece of 16mm cable and left it below the top rail, this cable that will connect to the output of our IDR ok?

Now it's time to organize the grounding cables in the same way we did with the neutral cables, just follow the steps we did. A 16mm green cable arrives directly from the standard or rod and connects to the bus, from there it distributes the grounding to the other circuits.

Now cut another piece of cable and crimp the ends with double terminals to ground the DPS, as we are going to use two DPS, one for phase and one for neutral, I bridge the 4mm cable which is the minimum recommended for the DPS and go down with just a direct cable to the earth bus, that way they will be interconnected. Finally, just screw this cable onto the bus as well.

After defining the location of each component, it's time to start tinkering with the board's power supply. I always put the general breaker in a point to measure where to cut the phase cable that will feed it. This black cable is 16mm, I've already ringed it as phase A and now I'm going to strip it and crimp the end with a tubular terminal to connect over the main circuit breaker. I leave with this 16mm cable already with the end crimped also under this general breaker and at the other end of it I put a generic terminal to enter together with a bipolar bus above the IDR and bypass through this bus to the SPDs. I used a bipolar bus here to interconnect the phase and neutral that arrive at the IDR to the personal DPS, here's the technical tip.

Then connect the 16mm blue cable to neutral on the IDR output and this cable will lead directly to our neutral bus. Also take another piece of 16mm black cable to interconnect the output phase of the IDR to the circuit breakers that we will place next, here also place tubular terminals at the ends of this cable.

Now here's a tip for those who say they can't cut the bus. How do I place a 12-tooth busbar when it doesn't even fit according to the sequence I installed? Guys, the busbar was made to cut yes and on top of that I chose a single-phase busbar in L.

Finally, it only remained to connect the phase cables of the circuits to their respective breakers. I start with lighting circuit 1, then I put 2 and 3 for the sockets and finally I connect 4 which is for the shower. I check the final tightness of the cables one more time for a loose post.