Type 'B' RCDs  AC-DC sensitive
'B' type RCDs in addition to normal AC, can detect high
frequency AC and pure DC earth leakage currents.
Reducing the risk of fire and/or electrocution through automatic
disconnection of the electrical supply relies on the selection 
of the correct type of RCD.

'B' Types
Available:
DFS4 B NK
DFL8 B NK
DFL8 B NK X
DFS4 B+
DFS4 B SK
DFL8 B SK
DFL8 B SK X
      Download
    Type 'B' RCD
    
 Selection Guide

    Applications requiring 'B' types include:
             PV installations
             Frequency converters
             UPS installations
             High-frequency power converters
             Building site power supply cabinets                     

		    

'B' Type RCDs are extremely complex
in Design and Manufacture as
demonstrated by this rotating image.