The Dorman Smith Loadbank YB1 Panel board system is designed for applications demanding up to 400A incoming supply and up to 125A outgoing capacity. 

Modular devices such as surge protection and incoming metering can be installed integral to the boards. Metering of outgoing devices is available by using an add-on service centre. 

Our Factory Built Assembly Department offers a bespoke panel board system.

Key Features:

• ASTA certified busbars rated at 25kA for 1 second 
• Available in 250A and 400A versions 
• Form 3b type 2 as standard 
• Compact physical dimensions 
• Integral incoming metering and surge kits 
• Matching add-on enclosures 
• Manufactured, assembled and tested in the UK

Incoming Devices:

• 250A Version – YB3 MCCB or Switch Disconnector 3-Pole & 4-Pole up to 250A
• 200A Version – YA5 MCCB or Switch Disconnector 3-Pole & 4-Pole up to 400A 

Outgoing Devices:

• YB1 MCCB 1-Pole up to 125A
• YB1 MCCB 3-Pole up to 125A