RCBOs Type A

Type A residual current

Regulation 531.3.3 Tripping on:

  • 50Hz sinusoidal AC
  • Pulsating DC
  • Pulsating DC superimposed on smooth DC < 6 mA.

Note: Type A RCDs do not detect smooth DC.

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

RCD selection and application RCBO accessories Technical data

General Non-delay characteristics for final circuits.

Ordering reference: see below

Product Standard: EN61009-1

Approvals: 2 Pole VDE

1 pole 230V RCBO "B" Curve Type A 10 kA
 Time/Current characteristic: General Non-delay   
 Modules     Poles       Amps        Sensitivity                 Reference
      1            1          6          30mA       RCBO1-B06/003/1-A
      1            1         10         30mA       RCBO1-B10/003/1-A
      1            1         16         30mA       RCBO1-B16/003/1-A
      1            1         20         30mA       RCBO1-B20/003/1-A
      1            1         25         30mA       RCBO1-B25/003/1-A
      1            1         32         30mA       RCBO1-B32/003/1-A
      1            1         40         30mA       RCBO1-B40/003/1-A
      1            1         45         30mA       RCBO1-B45/003/1-A


1 pole + N 230V RCBO "B" Curve Type A 10 kA
 Time/Current characteristic: General Non-delay   
 Modules     Poles       Amps        Sensitivity                 Reference
      2            2         6          30mA       DRCBO-3B06/0.03/1N-A
      2            2        10         30mA       DRCBO-3B10/0.03/1N-A
      2            2        16         30mA       DRCBO-3B16/0.03/1N-A
      2            2        20         30mA       DRCBO-3B20/0.03/1N-A
      2            2        25         30mA       DRCBO-3B25/0.03/1N-A
      2            2        32         30mA       DRCBO-3B32/0.03/1N-A
      2            2        40         30mA       DRCBO-3B40/0.03/1N-A
1 pole 230V RCBO "C" Curve Type A 10 kA
   Time/Current characteristic: General Non-delay   
 Modules     Poles       Amps        Sensitivity                 Reference
      1            1          6          30mA       RCBO1-C06/003/1-A
      1            1         10         30mA       RCBO1-C10/003/1-A
      1            1         16         30mA       RCBO1-C16/003/1-A
      1            1         20         30mA       RCBO1-C20/003/1-A
      1            1         25         30mA       RCBO1-C25/003/1-A
      1            1         32         30mA       RCBO1-C32/003/1-A
      1            1         40         30mA       RCBO1-C40/003/1-A
      1            1         45         30mA       RCBO1-C45/003/1-A


1 pole + N 230V RCBO "C" Curve Type A 10 kA
   Time/Current characteristic: General Non-delay   
 Modules     Poles       Amps        Sensitivity                 Reference
      2            2         6          30mA       DRCBO-3C06/0.03/1N-A
      2            2        10         30mA       DRCBO-3C10/0.03/1N-A
      2            2        16         30mA       DRCBO-3C16/0.03/1N-A
      2            2        20         30mA       DRCBO-3C20/0.03/1N-A
      2            2        25         30mA       DRCBO-3C25/0.03/1N-A
      2            2        32         30mA       DRCBO-3C32/0.03/1N-A
      2            2        40         30mA       DRCBO-3C40/0.03/1N-A

Application Notes:
a) 1 pole + N RCBOs are not suitable for single phase IT systems.
b) Center tapped (CT) transformer supplies for fixed equipment:
Use 2 pole RCCB + 2 pole MCBs. For 110V supplies, use 110v RCCBs.

3 pole + N 400V RCBO "B" Curve Type A 6 kA
 Time/Current characteristic: General Non-delay   
 Modules     Poles       Amps        Sensitivity                 Reference
      4           4           6         30mA       DRCBO-4B06/0.03/3N-A
      4           4         10         30mA       DRCBO-4B10/0.03/3N-A
      4           4         16         30mA       DRCBO-4B16/0.03/3N-A
      4           4         20         30mA       DRCBO-4B20/0.03/3N-A
      4           4         25         30mA       DRCBO-4B25/0.03/3N-A
      4           4         32         30mA       DRCBO-4B32/0.03/3N-A
      5           4         40         30mA       DRCBO-4B40/0.03/3N-A
3 pole + N 400V RCBO "C" Curve Type A 6 kA
   Time/Current characteristic: General Non-delay   
 Modules     Poles       Amps        Sensitivity                 Reference
      4           4           6         30mA       DRCBO-4C06/0.03/3N-A
      4           4         10         30mA       DRCBO-4C10/0.03/3N-A
      4           4         16         30mA       DRCBO-4C16/0.03/3N-A
      4           4         20         30mA       DRCBO-4C20/0.03/3N-A
      4           4         25         30mA       DRCBO-4C25/0.03/3N-A
      4           4         32         30mA       DRCBO-4C32/0.03/3N-A
      5           4         40         30mA       DRCBO-4C40/0.03/3N-A

Application Notes:
3 pole + N RCBOs must be used with a Neutral conductor (4 wire system).