B type RCCBs Ex9LB63 (New)

Residual current circuit breakers B type Ex9LB63 are suitable for domestic as well as industrial applications, where are used frequency inveters, PV plant, EV chargers and similar elements. B type provides a sensitivity to residual AC, pulsating and smooth DC current, together with high frequencies up to 1 kHz.

They are based on electronic technology, which brings advantages of more accurate measuring of residual current and, as a consequence, reduction of unwanted tripping. These devices also do not suffer with magnetization of the tripping unit. Thus, there is no mandatory testing period, but they must be tested regularly. On this testing period local law or regulations may apply. Recommend is to test it every 6 months in fair enviroment and every month in heavy condition.

  • Residual Current Circuit Breakers according to IEC/EN 61008-1 and IEC/EN 62423
  • Cond. rated short circuit strength Inc 10 kA
  • B type
  • 2 and 4-pole versions
  • Rated residual current 30, 100 and 300 mA
  • Rated current up to 63 A
  • Rated operational voltage 230/400 V AC
  • Indication of electrical tripping
  • Suitable for applications from -25 to +40 °C