RCDs Type 'DFS4 B-NK'

This range of 'B' Type RCDs provides the "classic"
300mA fire protection up to 1,000,000 Hz (1MHz)

  THIS GIVES OPTIMUM EQUIPMENT PROTECTION

Each unit has a contact position indicator, in addition to a reset position,
which shows whether the device has been switched off manually or tripped due to a fault.
The devices accept both pin and fork busbar, the pin terminal having a maximum
cross-section of 50mm.  The RCD has a facility to accept a circuit identification label
behind a clear plastic window.


Download Type 'B' RCD Selection Guide.
Time delay versions of the 'B NK'
range are also available. Contact
our Sales Office for information
'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

DFS4 'B' Type
Tripping characteristics

Technical Data
'B' Type NK - 2 pole Devices (230V) 
                            
   Modules       Poles       Amps          Sensitivity              Reference    

      4              2          16              30mA           09 114 695   
      4              2          16            100mA           09 115 695
      4              2          16            300mA           09 116 695
      4              2          25              30mA           09 124 695
      4              2          25            100mA           09 125 695
      4              2          25            300mA           09 126 695
      4              2          40              30mA           09 134 695
      4              2          40            100mA           09 135 695
      4              2          40            300mA           09 136 695
      4              2          63              30mA           09 144 695
      4              2          63            100mA           09 145 695
      4              2          63            300mA           09 146 695
      4              2          80              30mA           09 154 695
      4              2          80            100mA           09 155 695
      4              2          80            300mA           09 156 695
      4              2         100             30mA           09 164 695
      4              2         100           100mA           09 165 695
      4              2         100           300mA           09 166 695
      4              2         125             30mA           09 174 695
      4              2         125           100mA           09 175 695
      4              2         125           300mA           09 176 695
'B' Type NK - 4 pole Devices (230/400V) 
                            
   Modules       Poles       Amps          Sensitivity              Reference    

      4              4          16              30mA           09 114 995
      4              4          16            100mA           09 115 995
      4              4          16            300mA           09 116 995
      4              4          25              30mA           09 124 995
      4              4          25            100mA           09 125 995
      4              4          25            300mA           09 126 995
      4              4          40              30mA           09 134 995
      4              4          40            100mA           09 135 995
      4              4          40            300mA           09 136 995
      4              4          63              30mA           09 144 995
      4              4          63            100mA           09 145 995
      4              4          63            300mA           09 146 995
      4              4          80              30mA           09 154 995
      4              4          80            100mA           09 155 995
      4              4          80            300mA           09 156 995
      4              4         100             30mA           09 164 995
      4              4         100           100mA           09 165 995
      4              4         100           300mA           09 166 995
      4              4         125             30mA           09 174 995
      4              4         125           100mA           09 175 995
      4              4         125           300mA           09 176 995