MCBs Type B curve

B Tripping Curve (Characteristic)

  • Ref. BS7671 Apx 3 Fig. 3A4
  • Circuit-Breakers to EN60898-1
  • Limiting class 3

Note: Regulation 536.4.201: Doepke 6kA devices type tested in Doepke consumer units to BSEN61439-3 Apx ZB with 100A BS88 fuse, to withstand 16kA/230V.

MCB selection and application MCBs accessories Technical data

Selection criteria: Poles, Characteristic(curve), Current rating, Breaking capacity.

Ordering reference: see below:

Product Standard: EN60898-1

Approvals: VDE

    1 pole  <400V AC      "B" Icn = 6kA/Ics = 6kA
Time/Current characteristic: B (curve)   
 Modules     Poles       Amps                                      Reference
      1            1          6                              DLS6-HB6/1
      1            1         10                             DLS6-HB10/1
      1            1         16                             DLS6-HB16/1
      1            1         20                             DLS6-HB20/1
      1            1         25                             DLS6-HB25/1
      1            1         32                             DLS6-HB32/1


    2 pole  <400V AC      "B" Icn = 10kA/Ics = 7.5kA
Time/Current characteristic: B (curve)   
 Modules     Poles       Amps                                  Reference
      2            2          6                              DLS6-IB6/2
      2            2         10                             DLS6-IB10/2
      2            2         16                             DLS6-IB16/2
      2            2         20                             DLS6-IB20/2
      2            2         25                             DLS6-IB25/2
      2            2         32                             DLS6-IB32/2
      2            2         40                             DLS6-IB40/2      
      2            2         50                             DLS6-IB50/2      
      2            2         63                             DLS6-IB63/2      


    4 pole  <400V AC      "B" Icn = 10kA/Ics = 7.5kA
Time/Current characteristic: B (curve)   
 Modules     Poles       Amps                                  Reference
      4            4          6                              DLS6-IB6/4
      4            4         10                             DLS6-IB10/4
      4            4         16                             DLS6-IB16/4
      4            4         20                             DLS6-IB20/4
      4            4         25                             DLS6-IB25/4
      4            4         32                             DLS6-IB32/4
      4            4         40                             DLS6-IB40/4      
      4            4         50                             DLS6-IB50/4      
      4            4         63                             DLS6-IB63/4      
    1 pole  <400V AC      "B" Icn = 10kA/Ics = 7.5kA
Time/Current characteristic: B (curve)   
 Modules     Poles       Amps                                  Reference
      1            1          6                              DLS6-IB6/1
      1            1         10                             DLS6-IB10/1
      1            1         16                             DLS6-IB16/1
      1            1         20                             DLS6-IB20/1
      1            1         25                             DLS6-IB25/1
      1            1         32                             DLS6-IB32/1
      1            1         40                             DLS6-IB40/1
      1            1         50                             DLS6-IB50/1
      1            1         63                             DLS6-IB63/1


    3 pole  <400V AC      "B" Icn = 10kA/Ics = 7.5kA
Time/Current characteristic: B (curve)   
 Modules     Poles       Amps                                  Reference
      3            3          6                              DLS6-IB6/3
      3            3         10                             DLS6-IB10/3
      3            3         16                             DLS6-IB16/3
      3            3         20                             DLS6-IB20/3
      3            3         25                             DLS6-IB25/3
      3            3         32                             DLS6-IB32/3
      3            3         40                             DLS6-IB40/3      
      3            3         50                             DLS6-IB50/3      
      3            3         63                             DLS6-IB63/3