RCCB (RCD) Type B SK

Type B residual current

Regulation 531.3.3 Tripping on:

  • 50Hz sinusoidal AC
  • Pulsating DC
  • Smooth DC
  • Residual currents ≠ 50 Hz

Note: Type B RCDs must not be connected downstream of Type AC, A or F RCDs.

RCD selection and application RCCB accessories Technical data Download this page - pdf

General Non-delay characteristics for final circuits. Ordering reference: see the tables on this page.

Product Standard: EN61008-1 & EN62423
Approvals: VDE

2 pole 230V RCCB (2 & 4 module)
Time/Current characteristic: General Non-delay
 Modules     Poles       Amps        Sensitivity                 Reference
      2          2          16           30mA      DFS2-016-2/0.03-BSK
      2          2          16         100mA      DFS2-016-2/0.10-BSK
      2          2          16         300mA      DFS2-016-2/0.30-BSK
      2          2          16         500mA      DFS2-016-2/0.50-BSK
      2          2          25           30mA      DFS2-025-2/0.03-BSK
      2          2          25         100mA      DFS2-025-2/0.10-BSK
      2          2          25         300mA      DFS2-025-2/0.30-BSK
      2          2          25         500mA      DFS2-025-2/0.50-BSK
      2          2          40           30mA      DFS2-040-2/0.03-BSK
      2          2          40         100mA      DFS2-040-2/0.10-BSK
      2          2          40         300mA      DFS2-040-2/0.30-BSK
      2          2          40         500mA      DFS2-040-2/0.50-BSK
      2          2          63           30mA      DFS2-063-2/0.03-BSK
      2          2          63         100mA      DFS2-063-2/0.10-BSK
      2          2          63         300mA      DFS2-063-2/0.30-BSK
      2          2          63         500mA      DFS2-063-2/0.50-BSK
      2          2          80           30mA      DFS2-080-2/0.03-BSK
      2          2          80         100mA      DFS2-080-2/0.10-BSK
      2          2          80         300mA      DFS2-080-2/0.30-BSK
      2          2          80         500mA      DFS2-080-2/0.50-BSK
      4          2        100           30mA      DFS4-100-2/0.03-BSK
      4          2        100         100mA      DFS4-100-2/0.10-BSK
      4          2        100         300mA      DFS4-100-2/0.30-BSK
      4          2        100         500mA      DFS4-100-2/0.50-BSK
      4          2        125           30mA      DFS4-125-2/0.03-BSK
      4          2        125         100mA      DFS4-125-2/0.10-BSK
      4          2        125         300mA      DFS4-125-2/0.30-BSK


Please Note: 2 pole devices rated at 100A and above
are 4 modules wide.

4 pole 230V RCCB (4 module)
Time/Current characteristic: General Non-delay
 Modules     Poles       Amps        Sensitivity                 Reference
      4          4          16           30mA      DFS4-016-4/0.03-BSK
      4          4          16         100mA      DFS4-016-4/0.10-BSK
      4          4          16         300mA      DFS4-016-4/0.30-BSK
      4          4          16         500mA      DFS4-016-4/0.50-BSK
      4          4          25           30mA      DFS4-025-4/0.03-BSK
      4          4          25         100mA      DFS4-025-4/0.10-BSK
      4          4          25         300mA      DFS4-025-4/0.30-BSK
      4          4          25         500mA      DFS4-025-4/0.50-BSK
      4          4          40           30mA      DFS4-040-4/0.03-BSK
      4          4          40         100mA      DFS4-040-4/0.10-BSK
      4          4          40         300mA      DFS4-040-4/0.30-BSK
      4          4          40         500mA      DFS4-040-4/0.50-BSK
      4          4          63           30mA      DFS4-063-4/0.03-BSK
      4          4          63         100mA      DFS4-063-4/0.10-BSK
      4          4          63         300mA      DFS4-063-4/0.30-BSK
      4          4          63         500mA      DFS4-063-4/0.50-BSK
      4          4          80           30mA      DFS4-080-4/0.03-BSK
      4          4          80         100mA      DFS4-080-4/0.10-BSK
      4          4          80         300mA      DFS4-080-4/0.30-BSK
      4          4          80         500mA      DFS4-080-4/0.50-BSK
      4          4        100           30mA      DFS4-100-4/0.03-BSK
      4          4        100         100mA      DFS4-100-4/0.10-BSK
      4          4        100         300mA      DFS4-100-4/0.30-BSK
      4          4        100         500mA      DFS4-100-4/0.50-BSK
      4          4        125           30mA      DFS4-125-4/0.03-BSK
      4          4        125         100mA      DFS4-125-4/0.10-BSK
      4          4        125         300mA      DFS4-125-4/0.30-BSK
      4          4        125         500mA      DFS4-125-4/0.50-BSK