Uploaded May 2026 | Updated September 2026, 1 week ago
As solar PV, battery storage and other microgeneration systems become more common, understanding whether your protective devices are unidirectional or bidirectional has never been more important.
In this video, we break down:
✅ The difference between unidirectional and bidirectional RCBOs
✅ Why some consumer units are NOT suitable for solar back feed
✅ How to identify bidirectional devices correctly
✅ The truth about older split-load boards
✅ What electricians should be checking during EICRs
✅ Common confusion caused by markings in the On-Site Guide
We’ll look at RCBOs, RCCBs and MCBs up close and explain how power flow changes once solar PV or other microgeneration systems are installed.
Whether you're an apprentice, electrician, inspector or simply interested in modern electrical installations, this is essential knowledge for today’s industry.
== 🕐 Time Stamps - Cut to the action 🕕 ==
00:00 - Unidirectional or Bidirectional?
00:18 - Micro generation
00:47 - Are they helpful?
01:05 - Common RCBO layout
01:24 - Markings
01:50 - Bus Bar
01:58 - Markings but different
02:36 - Invertor
02:51 - Full of RCBOs
03:18 - Unidirectional
03:40 - Split load boards
03:56 - MCB
04:22 - Old solar installations
04:37 - RCCB
05:30 - A small change big difference
👇 Let us know in the comments:
Have you started checking for bidirectional protection devices on installs and EICRs?
🔔 Subscribe for more free electrical training videos youtube.com/c/GSHElectrical?sub_confirmation=1
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.
You can follow me day by day on Facebook, Instagram, Twitter and TikTok lookout for "GSH Electrical.
▶️ FACEBOOK facebook.com/gshelectrical
▶️ INSTAGRAM instagram.com/p/BrIhZmrAYGDTmjMdb9lUNQodMevqsbDDki3qpQ0
▶️ TWITTER mobile.twitter.com/gsh_electrical
▶️ TikTok vm.tiktok.com/ZMRBLFdhe
#GSHElectrical #Electricaltrainingvideos
#Electrician #SolarPV #RCBO #ConsumerUnit #ElectricalTraining #BS7671 #EICR #SolarInstallation #Microgeneration #ElectricalInstallation #eFIXX
As solar PV, battery storage and other microgeneration systems become more common, understanding whether your protective devices are unidirectional or bidirectional has never been more important.
In this video, we break down:
✅ The difference between unidirectional and bidirectional RCBOs
✅ Why some consumer units are NOT suitable for solar back feed
✅ How to identify bidirectional devices correctly
✅ The truth about older split-load boards
✅ What electricians should be checking during EICRs
✅ Common confusion caused by markings in the On-Site Guide
We’ll look at RCBOs, RCCBs and MCBs up close and explain how power flow changes once solar PV or other microgeneration systems are installed.
Whether you're an apprentice, electrician, inspector or simply interested in modern electrical installations, this is essential knowledge for today’s industry.
== 🕐 Time Stamps - Cut to the action 🕕 ==
00:00 - Unidirectional or Bidirectional?
00:18 - Micro generation
00:47 - Are they helpful?
01:05 - Common RCBO layout
01:24 - Markings
01:50 - Bus Bar
01:58 - Markings but different
02:36 - Invertor
02:51 - Full of RCBOs
03:18 - Unidirectional
03:40 - Split load boards
03:56 - MCB
04:22 - Old solar installations
04:37 - RCCB
05:30 - A small change big difference
👇 Let us know in the comments:
Have you started checking for bidirectional protection devices on installs and EICRs?
🔔 Subscribe for more free electrical training videos youtube.com/c/GSHElectrical?sub_confirmation=1
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.
You can follow me day by day on Facebook, Instagram, Twitter and TikTok lookout for "GSH Electrical.
▶️ FACEBOOK facebook.com/gshelectrical
▶️ INSTAGRAM instagram.com/p/BrIhZmrAYGDTmjMdb9lUNQodMevqsbDDki3qpQ0
▶️ TWITTER mobile.twitter.com/gsh_electrical
▶️ TikTok vm.tiktok.com/ZMRBLFdhe
#GSHElectrical #Electricaltrainingvideos
#Electrician #SolarPV #RCBO #ConsumerUnit #ElectricalTraining #BS7671 #EICR #SolarInstallation #Microgeneration #ElectricalInstallation #eFIXX
