Uploaded April 2024 | Updated September 2026, 2 weeks ago
How do MCB's work? Get a 30 day free trial and 20% off an annual subscription.🎁 Click here: brilliant.org/EngineeringMindset
How do miniature circuit breaks (MCB) work and why do they protect cables not people. What makes the trip, what happens inside, where are they used and how do we read the charts.
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🎁15% discount on multimeters.➡️ bit.ly/15-off-multimeters
(use code EM15 at checkout)
30 Day free trial🎁 Click here: brilliant.org/EngineeringMindset
How RCD / GFCI work ➡️ youtu.be/TUno2IT-KZY
GFCI / AFCI explained ➡️youtu.be/Qi0ynSQw-wc
⚡🛠️ TOOLS YOU NEED 🛠️⚡
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Get this electronics book ➡️ amzn.to/41cCJPk
Professional Multimeter -➡️ amzn.to/3xu2Vaw
Good multimeter -➡️ amzn.to/3xrbuTd
Professional clamp meter ➡️ amzn.to/4140FnK
Good Clamp meter ➡️ amzn.to/3xqt2is
Outlet tester ➡️- amzn.to/3kavg2l
Energy monitoring plug ➡️ amzn.to/3SkfPl7
Battery tester -➡️ amzn.to/3S3fHWI
Basic electronics ➡️ kit amzn.to/3xuLiqS
MY FAVOURITE GEAR
🎥 My camera - amzn.to/3YCZ7Q9
🎤 My Microphone - amzn.to/3YYXsUC
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👋 SOCIALISE WITH US 👋
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👉FACEBOOK: facebook.com/theengineeringmindset
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👉WEBSITE: TheEngineeringMindset.com
👀 Links - MUST WATCH!! 👀
*******************************
⚡ELECTRICAL ENGINEERING⚡
👉How electricity works: youtu.be/mc979OhitAg
👉Three Phase Electricity: youtu.be/4oRT7PoXSS0
👉How Inverters work: youtu.be/ln9VZIL8rVs
👉How TRANSFORMER works: youtu.be/UchitHGF4n8
👉How 3 Phase electricity works: youtu.be/4oRT7PoXSS0
👉How Induction motor works: youtu.be/N7TZ4gm3aUg
👉What is a KWH: youtu.be/SMPhh8gT_1E
👉How induction motor works: youtu.be/N7TZ4gm3aUg
[0:01] Will a Circuit Breaker Protect You from Electric Shock?
[0:12] What a Circuit Breaker Actually Protects
[1:21] Why Breakers Protect Cables and Property
[2:02] How Circuit Breakers Prevent Cable Overheating
[2:15] Overload Trip Example Explained
[2:24] What Device Actually Protects People from Electric Shock?
[2:37] What Circuit Breakers Detect: Overloads and Short Circuits
[2:57] Short Circuit vs Overload Explained
[3:24] How a Circuit Breaker Trips and Resets
[3:47] MCB vs Plug-In Breaker Explained
[4:09] Inside a Consumer Unit / Breaker Panel
[4:57] How Current Flows Through the Breaker Panel
[5:18] Circuit Breaker Parts and Terminals Explained
[6:02] Inside a Circuit Breaker: Main Components
[6:27] Current Path Inside the Breaker
[6:52] How the Breaker Lever and Trip Mechanism Work
[8:52] How the Bimetallic Strip Protects from Overload
[9:45] How the Solenoid Protects from Short Circuits
[10:32] Why the Solenoid Trips Instantly
[11:35] Why Breaker Coils Vary by Current Rating
[12:02] What Happens When the Contacts Open?
[12:17] Arc Formation Inside a Circuit Breaker
[12:45] How the Arc Chamber Extinguishes the Arc
[13:33] Why a 3A Breaker Does Not Trip at Exactly 3A
[13:56] Type B, Type C and Type D Breaker Curves Explained
[14:17] Breaker Trip Curve: Time vs Current
[14:25] How Long a 10A Breaker Takes to Trip at 20A
[14:48] Why a Breaker Won’t Trip at Its Rated Current
[15:12] When a Breaker Trips Instantly
[15:43] Type B vs Type C vs Type D Breakers
[15:59] Why Some Circuits Need Slower Breakers
[16:01] Inrush Current Explained
[16:34] Choosing the Right Breaker for Motors and Appliances
[16:57] Motor Startup Current Example
[17:00] Learn Engineering Math with Brilliant
How do MCB's work? Get a 30 day free trial and 20% off an annual subscription.🎁 Click here: brilliant.org/EngineeringMindset
How do miniature circuit breaks (MCB) work and why do they protect cables not people. What makes the trip, what happens inside, where are they used and how do we read the charts.
Get your mug here:➡️engineeringmindset-shop.fourthwall.com/pages/mugs
Join our Patreon:➡️ patreon.com/theengineeringmindset
Become channel member:➡️ youtube.com/channel/UCk0fGHsCEzGig-rSzkfCjMw/join
🎁15% discount on multimeters.➡️ bit.ly/15-off-multimeters
(use code EM15 at checkout)
30 Day free trial🎁 Click here: brilliant.org/EngineeringMindset
How RCD / GFCI work ➡️ youtu.be/TUno2IT-KZY
GFCI / AFCI explained ➡️youtu.be/Qi0ynSQw-wc
⚡🛠️ TOOLS YOU NEED 🛠️⚡
*******************************
Get this electronics book ➡️ amzn.to/41cCJPk
Professional Multimeter -➡️ amzn.to/3xu2Vaw
Good multimeter -➡️ amzn.to/3xrbuTd
Professional clamp meter ➡️ amzn.to/4140FnK
Good Clamp meter ➡️ amzn.to/3xqt2is
Outlet tester ➡️- amzn.to/3kavg2l
Energy monitoring plug ➡️ amzn.to/3SkfPl7
Battery tester -➡️ amzn.to/3S3fHWI
Basic electronics ➡️ kit amzn.to/3xuLiqS
MY FAVOURITE GEAR
🎥 My camera - amzn.to/3YCZ7Q9
🎤 My Microphone - amzn.to/3YYXsUC
⌨️ My Keyboard - amzn.to/3lBsl33
🖥️ My monitor - amzn.to/415BGjW
🎧 My headphones - amzn.to/3lN7R7u
👋 SOCIALISE WITH US 👋
*******************************
👉FACEBOOK: facebook.com/theengineeringmindset
👉TWITTER: twitter.com/TheEngMindset
👉INSTAGRAM: instagram.com/engineeringmindset
👉WEBSITE: TheEngineeringMindset.com
👀 Links - MUST WATCH!! 👀
*******************************
⚡ELECTRICAL ENGINEERING⚡
👉How electricity works: youtu.be/mc979OhitAg
👉Three Phase Electricity: youtu.be/4oRT7PoXSS0
👉How Inverters work: youtu.be/ln9VZIL8rVs
👉How TRANSFORMER works: youtu.be/UchitHGF4n8
👉How 3 Phase electricity works: youtu.be/4oRT7PoXSS0
👉How Induction motor works: youtu.be/N7TZ4gm3aUg
👉What is a KWH: youtu.be/SMPhh8gT_1E
👉How induction motor works: youtu.be/N7TZ4gm3aUg
[0:01] Will a Circuit Breaker Protect You from Electric Shock?
[0:12] What a Circuit Breaker Actually Protects
[1:21] Why Breakers Protect Cables and Property
[2:02] How Circuit Breakers Prevent Cable Overheating
[2:15] Overload Trip Example Explained
[2:24] What Device Actually Protects People from Electric Shock?
[2:37] What Circuit Breakers Detect: Overloads and Short Circuits
[2:57] Short Circuit vs Overload Explained
[3:24] How a Circuit Breaker Trips and Resets
[3:47] MCB vs Plug-In Breaker Explained
[4:09] Inside a Consumer Unit / Breaker Panel
[4:57] How Current Flows Through the Breaker Panel
[5:18] Circuit Breaker Parts and Terminals Explained
[6:02] Inside a Circuit Breaker: Main Components
[6:27] Current Path Inside the Breaker
[6:52] How the Breaker Lever and Trip Mechanism Work
[8:52] How the Bimetallic Strip Protects from Overload
[9:45] How the Solenoid Protects from Short Circuits
[10:32] Why the Solenoid Trips Instantly
[11:35] Why Breaker Coils Vary by Current Rating
[12:02] What Happens When the Contacts Open?
[12:17] Arc Formation Inside a Circuit Breaker
[12:45] How the Arc Chamber Extinguishes the Arc
[13:33] Why a 3A Breaker Does Not Trip at Exactly 3A
[13:56] Type B, Type C and Type D Breaker Curves Explained
[14:17] Breaker Trip Curve: Time vs Current
[14:25] How Long a 10A Breaker Takes to Trip at 20A
[14:48] Why a Breaker Won’t Trip at Its Rated Current
[15:12] When a Breaker Trips Instantly
[15:43] Type B vs Type C vs Type D Breakers
[15:59] Why Some Circuits Need Slower Breakers
[16:01] Inrush Current Explained
[16:34] Choosing the Right Breaker for Motors and Appliances
[16:57] Motor Startup Current Example
[17:00] Learn Engineering Math with Brilliant
