Doepke The experts in residual current protection technology DATA SHEET DFL 8 125-4/0,03-A pulsating AC/DC-sensitive type A Article No. 09174781 Symbolic image ATkg Function CBRs (circuit-breakers with integral residual current protection) are circuit-breakers with a magnetic and thermal overcurrent trip and a residual current trip. The circuit-breaker with residual current trip is used for overcurrent protection of equipment, cables and lines in accordance with DIN VDE 0100-430 and for protection against electrical shock by automatic switch-o of the power supply as per DIN VDE 0100-410. This series contains compact devices for rated currents up to 250 A with integrated auxiliary switch and terminals for large cable cross-sections. The devices are preferably mounted on a mounting plate. Switches with residual current characteristic A are independent of the mains voltage and allow the detection of sinusoidal AC currents and pulsating DC residual currents. Switches of this variant have a xed residual response current of 30 mA for the protection of persons. They therefore provide fault and re protection as well as additional protection (personal protection, protection in the event of direct contact). Devices in the standard design are intended for monitoring circuits with a rated voltage of 230 V or 400 V and a rated frequency of 50 Hz or 60 Hz. Features xed rated residual current of 0.03 A, type range with rated currents from 100 A to 250 A, four-pole, rated voltage 400/690 V AC, detection of AC residual currents and pulsating DC residual currents (type A as per IEC TR 60755), function range of the residual current trip 0-690 V, function range of the residual current operated protective device 280-690 V, trip independent of the mains voltage and auxiliary voltage when overcurrent and residual currents occur , high short-circuit switching capacity, terminals up to 185 mm², , high surge current strength, i.e. low tendency to faulty trips due to transient residual currents, thresholds adjustable for instantaneous and slow-blow overcurrent trip, integrated auxiliary switches Mounting mounting on mounting plate, any installation position, supply from any direction Applications power supplies to purpose-built buildings as well as industrial facilities with TN-S, TT and TN-C-S networks with high short-circuit power , In IT networks, the residual current trip of the CBR can be set to switch o in the event of a second earth fault. , use for residual current protection in TN-C networks is excluded Notes The type A CBR does not provide comprehensive protection in systems containing electronic equipment can cause smooth DC residual currents or residual currents with frequencies not equal to 50 Hz. For these applications we recommend our AC/DC sensitive CBR type B. Accessories N 7 Housing Technical Data Series Number of poles Residual current type Rated current (AC) Rated residual current I∆n Short-time delayed Selective Response delay min. Operating voltage range of test circuit max. Operating voltage range of test circuit Non-trip time

Doepke The experts in residual current protection technology Technical Data Neutral conductor position Selectivity adjustable Adjustment range of overload tripping Adjustment range of short-circuit tripping Power dissipation Pv release Rated operation short-circuit disconnecting capacity Ics Rated short-circuit disconnecting capacity limit lcu Rated short-circuit connection and disconnection capacity IΔm Operating voltage (AC) Operating frequency Description Type Description Specification Rated voltage (AC) Tolerance of rated voltage Rated current (AC) Surge current strength Rated impulse withstand...

Doepke The experts in residual current protection technology Technical Data Rated short-circuit connection and disconnection capacity IΔm Description Protection against direct contact Allowed types of wires Clamping area Max number of wires per terminal Cross section solid Cross section stranded Tightening torque Description Protection against direct contact Clamping area Max number of wires per terminal Cross section solid Connecting capacity flexible Cross section stranded Tightening torque Description Operating position max. Operating altitude above MSL Mechanical endurance Electrical endurance...

Wiring example The experts in residual current protection technology