Uploaded May 2026 | Updated September 2026, 2 weeks ago
▶ Want to learn industrial automation? Go here: realpars.com
▶ Want to train your team in industrial automation? Go here: realpars.com/business
▶ You can read the full post here:
realpars.com/blog/3-phase-motor-wiring-diagram
⌚Timestamps:
00:00 - Intro
00:17 - Why do we use 3-phase power?
01:34 - Why do we use fuses?
02:29 - How does a fuse work?
04:12 - What is a contactor?
05:36 - How does a contactor work?
08:03 - What is an overload relay?
09:19 - Fuse vs overload relay
10:49 - Summary
=============================
In this video, @Shahpour explains how a 3-phase motor wiring diagram works in a simple, easy-to-follow way.
We go through each part of the diagram step by step:
- Why we use 3 power lines instead of 1
- What fuses do and how they protect the circuit
- How a contactor works (and why we control it with a coil)
- What an overload relay does and how it’s different from a fuse
By the end, you’ll be able to look at the wiring diagram in the video and explain it to a friend or a colleague at work.
=============================
Need custom training for your team?
If you have a team of engineers or technicians that need training on any industrial automation topic, check out 👉 realpars.com/custom-training.
Fill out the form, and if it makes sense, we’ll book a call to see how we can help.
For example, a company recently reached out because they needed their team trained on Siemens PLC programming and troubleshooting. We ran a few half-day online classes, and their whole team was up and running in a couple of weeks — without leaving the factory or paying for travel.
=============================
Did you miss out on the latest and greatest? Catch up now by watching our videos right here:
realpars.com/blog/industrial-automation-control-system
realpars.com/blog/open-vs-short-circuits
realpars.com/blog/plc-counters-studio-5000
=============================
Follow us on Facebook 👉 facebook.com/therealpars
Follow us on Twitter 👉 twitter.com/realpars
Follow us on LinkedIn 👉 linkedin.com/company/realpars
Follow us on Instagram 👉 instagram.com/realparsdotcom
#RealPars #motorwiring #electricalengineering #3phasemotor
▶ Want to learn industrial automation? Go here: realpars.com
▶ Want to train your team in industrial automation? Go here: realpars.com/business
▶ You can read the full post here:
realpars.com/blog/3-phase-motor-wiring-diagram
⌚Timestamps:
00:00 - Intro
00:17 - Why do we use 3-phase power?
01:34 - Why do we use fuses?
02:29 - How does a fuse work?
04:12 - What is a contactor?
05:36 - How does a contactor work?
08:03 - What is an overload relay?
09:19 - Fuse vs overload relay
10:49 - Summary
=============================
In this video, @Shahpour explains how a 3-phase motor wiring diagram works in a simple, easy-to-follow way.
We go through each part of the diagram step by step:
- Why we use 3 power lines instead of 1
- What fuses do and how they protect the circuit
- How a contactor works (and why we control it with a coil)
- What an overload relay does and how it’s different from a fuse
By the end, you’ll be able to look at the wiring diagram in the video and explain it to a friend or a colleague at work.
=============================
Need custom training for your team?
If you have a team of engineers or technicians that need training on any industrial automation topic, check out 👉 realpars.com/custom-training.
Fill out the form, and if it makes sense, we’ll book a call to see how we can help.
For example, a company recently reached out because they needed their team trained on Siemens PLC programming and troubleshooting. We ran a few half-day online classes, and their whole team was up and running in a couple of weeks — without leaving the factory or paying for travel.
=============================
Did you miss out on the latest and greatest? Catch up now by watching our videos right here:
realpars.com/blog/industrial-automation-control-system
realpars.com/blog/open-vs-short-circuits
realpars.com/blog/plc-counters-studio-5000
=============================
Follow us on Facebook 👉 facebook.com/therealpars
Follow us on Twitter 👉 twitter.com/realpars
Follow us on LinkedIn 👉 linkedin.com/company/realpars
Follow us on Instagram 👉 instagram.com/realparsdotcom
#RealPars #motorwiring #electricalengineering #3phasemotor
