DRCBO 3 B40/0,03/1N-A KV0 pages

Doepke
The experts in residual current protection technology

DATA SHEET

Internetlink

DRCBO 3 B40/0,03/1N-A KV
pulsating AC/DC-sensitive type A, Characteristic B, short-delay
Article No. 09932408

Symbolic image

1ATVkg
Function
Residual current operated circuit-breakers with integral overcurrent protection (RCBO) are miniature circuit-breakers with residual current
trips for protecting systems in the event of a short-circuit and overload as per the requirements of VDE 0100 Part 430, and for protecting
persons, farm animals and material items in the event of earth leakage currents as per VDE 0100 Part 410. Overload tripping occurs at
currents in the overload range through a slow-blow, heat-sensitive bimetal trip and at short-circuit currents through an electromagnetic
instantaneous trip. The high-quality residual current operated circuit-breakers with integral overcurrent protection from series DRCBO 3
are independent of the mains voltage and have a high switching capacity of 10 kA. The green-red contact position indicator and the
residual current tripping indicator allow for a quick overview of the operating status of the devices. Two features make mounting and
removal easier: terminal protection against wires being lodged behind them and the tri-stable snap-in slider. RCBOs with residual
current characteristic A are independent of the mains voltage and allow the detection of sinusoidal AC currents and pulsating DC residual
currents. The FIB and FIC series with tripping characteristics B and C facilitate the selection of dierent response thresholds for the
instantaneous trip. For device protection, the switches can be adjusted by selecting the characteristics in limits to suit the operationrelevant peak currents. Devices with characteristic B oer standard line protection for sockets and lighting circuits while these devices
with characteristic C are suitable for power circuits with high switch-on currents. Due to a response delay, residual current operated
circuit-breakers with integral overcurrent protection in the KV design respond only to residual currents with a duration of more than a
half-period of the mains frequency. In contrast to instantaneous breakers, they are signicantly less sensitive to brief impulse-like residual
currents and facilitate problem-free operation, even when lightning or switching overvoltage in the system causes capacitative surge
residual currents or insulation ashovers with a secondary current up to the zero point of the mains voltage. They therefore meet the
requirements for weatherproof RCBOs as per Austrian standard ÖVE E 8601. The tripping times set out in national and international
design regulations for instantaneous RCBOs are also observed by the KV design devices. Therefore, in principle these may be used instead
of a standard breaker.
Features
mains-voltage-independent tripping, compact design for all rated currents, high short-circuit resistance, green-red contact position
indicator, residual current tripping indicator, Screw terminals with strain-relief clamps with protection against wires being lodged behind
them and wide terminal cross-section range for rail and line wiring on both connection sides, Use of conventional wiring rails possible,
Neutral conductor right, tri-stable snap-in slider for easy mounting and removal, electromagnetic compatibility in accordance with
VDE 0664-30 and VDE 0839-6-2 (interference resistance for industrial applications),
Mounting
quick fastening to mounting rail, any installation position
Applications
Protection of circuits in residential and purpose-built buildings as well as industrial facilities with TN-S and TN-C-S networks. In IT
networks, the RCCB/MCBs can be set to switch o in the event of a second earth fault, Not permitted for use in systems with TN-C
networks; not permitted for protecting circuits in which the power electronics equipment may cause smooth DC residual currents or
residual currents with frequencies not equal to 50/60 Hz.
Accessories
FAM 1, Hi 11
Technical Data
Series
Number of poles
Residual current type
Rated current (AC)
Rated residual current I∆n

2015_03_13

DRCBO 3 B40/0,03/1N-A KV
DRCBO 3
1+N
A
40 A
0.03 A

doepke_09932408_dbl_en.pdf

1/3