Doepke DFL 8 B SK Series Manual de instalación y funcionamiento - Página 2

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Doepke

Installation and Operating Manual

for circuit-breakers with residual current trip

of series DFL 8 B SK

Electrical connection

Guide all active conductors (outer cables L1, L2, L3 and the neutral conductor MP/N)

through the switch. The energy flow direction must be observed, i. e. the mains or

consumer unit has to be connected to the lower terminal block. Scrape and grease

aluminium conductors immediately before connection.

Function and area of application

The devices of the DFL 8 B series are circuit-breakers with residual current trip sensi

tive to all current types for the detection of residual currents of type B. They consist

of a section independent of the mains voltage for the detection of sinusoidal AC and

pulsing DC residual currents with the rated frequency 50 Hz or 60 Hz and a section de

pendent on the mains voltage for the detection of residual currents in the frequency

range 0 Hz to 100 kHz.

The devices are intended for use in single and multiple phase AC networks. They are

not intended for use in DC networks.

In order to ensure protection across the total frequency range covered in the event

of indirect contact with a maximum contact voltage of 50 V or 25 V respectively, the

earth resistance must be in accordance with the table given below.

Series

maximum touch voltage 25 V

DFL 8 B SK

8.3 Ω

For frequencies > 1 kHz the tripping current for the DFL 8 B SK is up to approx 3 A.

This ensures its insensitivity to high leakage currents in the upper frequency range.

Testing and functional check

The testing of all safety measures on commissioning must be carried out according

to the information in the valid national installation regulations. An insulation test of

the user equipment is to be carried out in accordance with DIN EN 61557-2. This may

only be done when the device is switched off. Insulation testing when the device is

switched on or insulation testing on the input side may lead to incorrect measured

values. A functional inspection of the circuit-breaker with residual current trip itself

is possible with connected mains voltage by pressing the test button T and, as in com

mercial use (BGV A3), should be carried out at least every six months in the case of

stationary systems and should be repeated every working day in the case of non-

stationary systems.

The green LED signals that the internal operating voltage is sufficient for AC-DC sen

sitive residual current detection (residual currents of type AC, A and B). If the LED

does not illuminate, then only tripping via type AC and A residual currents is still

guaranteed. The internal supply of the device is via the bottom terminals. At least

two arbitrary conductors must conduct AC voltage of greater than 50 V in order to

guarantee AC-DC sensitive residual current detection.

Important information on operation with electronic equipment

(such as frequency converters, inverters etc.)

1. Electronic equipment and its associated EMC protective provisions, such as e. g.

integrated or in series-connected EMC filters, as well as shielded cables, can give

rise to high capacitive leakage currents.

2. The maximum number of items of electronic equipment connected downstream

of the device is based on the level of leakage currents that occur. Excessive leak

age currents may lead to undesired tripping in spite of the tripping current fre

quency response of the device. Relevant information concerning the discharge

currents that are produced can be requested from the manufacturers of the elec

tronic equipment.

3. During operation with frequency converters long, shielded motor cables may lead

to high discharge currents in the event of the controller release of the frequency

converter, which lead to undesired tripping. If necessary, a sinusoidal output filter

should then be used directly behind the frequency converter (before the shielded

motor cable).

4. According to the instructions, a conventional 3-conductor EMC filter should only

be connected in series with the relevant electronic equipment. So that the filter ef

fect is not impaired, under no circumstances should further single-phase consum

ers such as incandescent bulbs be connected on the output side of the EMC filter.

5. As a rule, different clock frequencies (chopper) can be selected in the case of elec

tronic equipment. In an unfavourable case, the clock frequency may lead to a ten

dency to oscillation in an upstream EMC filter and therefore to greatly increased

leakage currents, which then result in a tripping of the device. In this case, the

clock frequency must be changed.

3930202 | 11/2013 | Doepke Schaltgeräte GmbH, Stellmacherstraße 11, D-26506 Norden

Application instructions and warnings

The following notes and warnings must be observed in order to ensure safe operation:

1. Installation may only be carried out by an authorised specialist, who is familiar

with the relevant national installation regulations.

2. Without an additional protective housing, the circuit-breaker with residual cur

rent trip may only be stored and operated in a dry, low-dust environment. An ag

gressive atmosphere must also be avoided.

3. The user must be made aware of repeat testing using the button T.

4. Using surge current strength CBRs cannot absolutely guarantee to rule out trips

due to leakage currents caused by surge voltage. In cases where an interruption of

the power supply may lead to potential dangers for humans and animals or dam

age to property, residual current protection should be implemented by means of

increased surge current strength, selective CBRs and upstream surge arresters. In

specific cases, the switching status should be monitored by means of an auxiliary

contactor at the circuit-breaker and an appropriate signalling device.

Guarantee

All professionally installed, unaltered devices are covered by warranty during the

statutory guarantee period from the day of purchase by the end user. The guaran

tee is not applicable to damage incurred during transport or caused by short-circuit,

overloading or improper use. In the event of defects in workmanship or material,

which are discovered within the guarantee period, the company will provide a repair

or replacement free of charge. The guarantee will be rendered null and void if the

device is opened without authorization.

Technical Data

DFL 8 B SK / SK X / SK V / SK X V

Rated current I n

maximum touch voltage 50 V

16.6 Ω

Rated residual

current I �n

Detection range of residual

current

Rated operat

ing voltage U e

Rated frequency

min.

operating

voltage

Internal consumption

operating

range of test

circuit

number of poles

Dissipation power P v (typ.)

Short-circuit fuse

Response

times

Non-response

lag time

Rated shortcircuit discon

necting capacity limit I cu

Rated operation short-

circuit disconnecting

capacity I cs

Rated residual current

shortcircuit disconnecting

capacity I �m

Surge current strength

Shock resistance

Vibration resistance

Type of protection

Installation position

Supply side

Ambient temperature

DIN VDE 0636, IEC 60269

100 A

125 A

160 A

200 A

standard

0.03 A

series X

adjustable: 0.3 A, 0.5 A, 1.0 A

0 – 100 kHz, 50 or 60 Hz

230/400 V AC

standard

290/500 V AC

series V

50 Hz or 60 Hz

for detec

tion of

residual

0 V (mains independent)

currents

Type A/AC

for detec

tion of

residual

50 V AC

currents

Type B

max. 2.5 – 3 W

50 V AC – 400 V AC

standard

series V

50 V AC – 500 V AC

four-pole

35 W

43 W

55 W

72 W

250 A/gG

1 x I �n ≤ 300 ms; 5 x I �n ≤ 40 ms

standard

Range l = 60 – 120 ms

Range ll = 150 – 250 ms

series X

Range lll = 300 – 420 ms

Range llll = 450 – 600 ms

undelayed

standard

Range l = < 60 ms

Range ll = < 150 ms

series X

Range lll = < 300 ms

Range llll = < 450 ms

50 kA at 400/415 V AC

Proof of the resistance of CBRs to unintended tripping

from surge currents resulting from surge voltages

EN 60947-2:2003 (B.8.6)

20 g / 20 ms duration (IEC 60068-2-27)

1.0 g (f = 2 – 100 Hz) (IEC 60068-2-6)

IP 20

vertical or tilted by 90°

bottom

-25 °C to +70 °C

DFL 8 B SK / SK X / SK V / SK X V

Environmental testing

dry heat

constant

damp heat

cyclic

solid

1 x (4 mm² – 16 mm²); 2 x (4 mm² – 16 mm²)

Cross sections

stranded

1 x (25 mm² – 185 mm²); 2 x (25 mm² – 70 mm²)

Tightening torque

mechanical

Endurance

electrical

Overload

tripping

Design

Residual

requirements

current

tripping

Electromagnetic

compatibility

Weight

DIN VDE 0636, IEC 60269

Auxiliary switch

AC-15: 230 V / 6 A; 400 V / 4 A; 500 V / 2 A

Load rating

DC-13: 24 V / 3 A; 110 V / 0.8 A; 220 V / 0.3 A

Rated operating voltage U e

Rated impulse withstand

voltage U imp

Rated insulation voltage U i

250 A

Cross-sections solid and

1 x (0.75 mm² – 2.5 mm²); 2 x (0.75 mm² – 1.5 mm²)

flexible with ferrules

Characteristics

Auslösestromfrequenzgang / Tripping current frequenzy response

10000

1000

100

Auslösestromfrequenzgang / Tripping current frequenzy response

10000

1000

100

85 W

Auslösestromfrequenzgang / Tripping current frequenzy response

10000

1000

100

Auslösestromfrequenzgang / Tripping current frequenzy response

10000

1000

100

IEC 60068

IEC 60068-2-2

IEC 60068-2-78

IEC 60068-2-30

14 Nm

> 2,000 cycles

VDE 0660 / EN 60947-2

VDE 0660 / EN 60947-2 Appendix B

EN 60947-2 Appendix J

approx. 5,600 g

230/400 V AC

6 kV

500 V

DF L 8 B S K / 30 mA

100

1000

10000

100000

Frequenz / Frequenzy in Hz

DF L 8 B SK / 300 mA

100

1000

10000

100000

Frequenz / Frequenzy in Hz

DF L 8 B S K / 500 mA

100

1000

10000

100000

Frequenz / Frequenzy in Hz

DF L 8 B S K / 1000 mA

100

1000

10000

100000

Frequenz / Frequenzy in Hz