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Residual current operated circuit breakers with integral overcurrent protection AVDT34

Description


Residual current operated circuit breakers with overcurrent protection AVDT34 are intended for electric shock hazard protection in case of electric installation insulation failures, for preventing fires caused by earth current leakages, overload and short circuit protection in AC networks of 400 V (50 Hz).
AVDT34 with the integrated overcurrent protection reacts not only to alternating residual current but also to pulsating direct residual currents. The sources of such pulsating currents can be washing machines with variable-speed control, controlled lighting, TVs, video recorders, PCs etc.
AVDT34 is manufactured as 4-pole items per rated currents of 6, 10, 16, 25 and 32 A and rated breaking residual currents of 10, 30, 100, 300 mA.

Range


  Name Rated current In, A rated breaking residual current, mA Package amount, pcs Product ID
multiple transport
AVDT 34 C6 10mA 6 10 3 30 MAD22-6-006-C-10
AVDT 34 C10 10mA 10 3 30 MAD22-6-010-C-10
AVDT 34 C16 10mA 16 3 30 MAD22-6-016-C-10
  AVDT 34 C10 30mA 10 30 3 30 MAD22-6-010-C-30
AVDT 34 C16 30mA 16 3 30 MAD22-6-016-C-30
AVDT 34 C25 30mA 25 3 30 MAD22-6-025-C-30
AVDT 34 C32 30mA 32 3 30 MAD22-6-032-C-30
  AVDT 34 C16 100mA 16 100 3 30 MAD22-6-016-C-100
AVDT 34 C25 100mA 25 3 30 MAD22-6-025-C-100
AVDT 34 C32 100mA 32 3 30 MAD22-6-032-C-100
  AVDT 34 C16 300mA 16 300 3 30 MAD22-6-016-C-300
AVDT 34 C25 300mA 25 3 30 MAD22-6-025-C-300

Advantages


  • Compact residual current-controlled circuit breaker construction with the integrated overcurrent protection.
  • Rated conditional short-circuit current of 6000A provides for installing AVDT34 as incoming protection switches.
  • RCD type A ensures universal shock hazard protection in case of eventual unintentional contact with conducting parts and earth current leakages.
  • High electrical wear resistance: not less than 6000 powering cycles.
  • Wide range of rated (6, 10, 16, 25 and 32 A) and rated breaking residual currents (10, 30, 100, 300 mA).
  • Ergonomic “TEST” button for checking the device’s operation and accuracy of connection.
  • Main contacts of 4-polar residual current operated circuit breakers with overcurrent protection AVDT34 are constructed in the way that the neutral pin is closed earlier and broken later that allows preventing electrical imbalance equivalent to a neutral conductor cut-off.
  • Possibility to install:
    • universal status contact KDU60;
    • shunt trip RN60.

Design Features


  Compact residual current-controlled circuit breaker construction with the integrated overcurrent protection occupies 4 modules in the board.   Double quenching grid at the arch chute output raises fire safety preventing combustion products from exposing.
  New construction of trip-free release mechanism ensures fast main contacts breaking.   Notches on terminal clamps allow lowering thermal losses and boosting the mechanical stability of connection.
  Welding deposition of silver-bearing composite provides for boosting the contact block’s wear-resistance and lowering the transient one.   Main circuit status indicator provides exact information on the contacts status independently from lever position. Rated conditional short-circuit current of 6000A. Boosted range of operating temperatures from –25 to +40° .
  Arching plate of moving contact is constructed as a smooth curve that substantially facilitates drawing arch into the arch extinguishing chamber.   DIN rail latch with a double fixed position for the convenience of installation.
  Quenching grids with boosted number of plates at each pole provide for more efficient electric arch extinguishing.   Boosted screw head dimension with cross-functional crest (+,–) helps to facilitate mounting and prevents the screws from falling out during the installation.

Technical Features


Feature AVDT32 AVDT34
NP / No. of poles
Overcurrent protection
1P+N
In phase pole
3P+N
In each phase pole
Rated operating voltage Ue, V 230 400
Operating voltage range U, V 50 ÷ 265 50 ÷ 460
Rated frequency, Hz 50 50
Rated current In, A 6; 10; 16; 20; 25; 32; 40; 50; 63 6; 10; 16; 20; 25; 32
Rated breaking residual current IΔn (setting value), mA

10; 30; 100

10; 30; 100; 300

Rated non-breaking residual current IΔn0, A 0,5 IΔn 0,5 IΔn
Service max. short-circuit breaking capacity Icn, A

6000

6000

Performance value in case of residual current with D component, type

A

A

Overcurrent ripping characteristics, type B, C C
Mechanical durability, not less than, ops. 10 000 10 000
Electrical durability, not less than, ops. 6000 6000
Cables max. size, mm2 25 25
Silver content, (Ag), g/pole 0,8 0,8
Weight, kg 0,25 0,4
Protection degree according to GOST 14254 (IEK 529)
Climate type (GOST 15150)

IP20
MRC4

IP20
MRC4

Overall Dimensions


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