Bender RCMA474 Manual - Halaman 6
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Halaman CetakRCMA474
Wartung
Führen Sie regelmäßig in etwa monatlichem Abstand eine Funk-
tionsprüfung mit der Taste „TEST" durch.
Leistungsmerkmale
Erkennt alle Differenzströme DC ... 150 Hz
●
Externe Versorgungsspannung
●
feste Ansprechzeit
●
zwei Ansprechwerte
●
- 50 % Vorwarnung
- 100 % Hauptmeldung (300 mA)
Normgerecht nach EN 60947-2, EN 50178, BGI 608
●
Ansprechcharakteristik entsprechend IEC60755 (Typ B)
●
Fehlerspeicherverhalten wählbar
●
Testfunktion mit tatsächlichem Prüfstrom von DC 600 mA
●
Anschlussüberwachung Messstromwandler
●
Plombierbare Klarsichtabdeckung
●
Normen
DIN EN 62020 (VDE 0663): 1999-07
„Elektrisches Installationsmaterial - Differenzstrom-Überwa-
chungsgeräte für Hausinstallationen und ähnliche Verwendun-
gen (RCMs) (IEC 62020:1998); Deutsche Fassung EN 62020:1998"
DIN EN 60947-2: 2002-09
Niederspannungsschaltgeräte - Teil 2: Leistungsschalter (IEC
60947-2:1995 + A1:1997 + A2:2001); Deutsche Fassung EN 60947-
2:1996 + A1:1997 + A2:2001
IEC 60755
General requirements for residual current operated protective
devices
Technische Daten
Isolationskoordination nach IEC 60664-1:
Bemessungsspannung .......................................................................................................AC 250 V
Bemessungs-Stoßspannung/Verschmutzungsgrad .............................................................4 kV/3
Spannungsbereiche
Versorgungsspannung U
........................................................ siehe Typenschild / Bestellangaben
S
Arbeitsbereich von U
...............................................................................................0,85 ... 1,1 x U
S
Frequenzbereich von U
..................................................................................................... 50...60 Hz
s
Eigenverbrauch ................................................................................................................. ≤ 4,5 VA
Messkreis
Messstromwandlertyp, extern ......................................................................................W...B-120T1
Bemessungsbetriebsspannung U
......................................................................................AC 720 V
e
Ansprechcharakteristik nach IEC 60755....................................................................................Typ B
Bemessungs-Ansprechdifferenzstrom I
Δn2
Ansprechverzögerung t
................................................................................................................ 2 s
v
Ansprechabweichung.............................................................siehe Tabelle „Auslösebedingungen"
Hysterese...................................................................................................................ca. 25 % x I
Rückfallverzögerung...................................................................................................................... 2 s
Bemessungs-Ansprechdifferenzstrom I
Δn1
Bemessungsfrequenz ........................................................................................................ 0...150 Hz
Ansprechabweichung.............................................................siehe Tabelle „Auslösebedingungen"
Hysterese...................................................................................................................ca. 25 % x I
Ansprechzeit t
................................................................1 x I
an
Rückfallverzögerung (nur wenn R1/ R2 gebrückt).......................................................................2 s
6
(Vorwarnung)......................... 150 mA (50 % x I
(Alarm) ...........................................................300 mA
: ≤ 130 ms / 5 x I
Δn1
Δn1
Maintenance
A functional test is recommended to be carried out once a month
by pressing the TEST button.
Device features
Recognizes all residual currents DC ... 150 Hz
●
External supply voltage
●
Permanently set response time
●
Two response values
●
-50% prewarning
-100% alarm (300 mA)
In accordance with the standards EN 60947-2, EN 50178,
●
BGI 608
Operating characteristics according to IEC60755 (Typ B)
●
Fault memory behaviour selectable
●
Test function using real test current of DC 600 mA
●
Connection measuring current transformer
●
Transparent dust cover for ingress protection
●
Standards
IEC 62020 (VDE0663): 1998-08
„Electrical accessories – Residual current monitors for household
and similar uses (RCMs)"
DIN EN 60947-2: 2002-09
Low voltage switchgear and controlgear - Part 2: Circuit breakers
(IEC 60947-2:1995 + A1:1997 + A2:2001)
IEC 60755
General requirements for residual current operated protective
devices
Technical data
Insulation coordination according to IEC 60664-1:
Rated voltage ...................................................................................................................... AC 250 V
Rated impulse voltage/pollution degree ............................................................................... 4 kV/3
Voltage ranges
Supply voltage U
.........................................................................see nameplate / ordering details
S
Operating range of U
S
S
Frequency range of U
Power consumption .......................................................................................................... ≤ 4.5 VA
Measuring circuit
Type of external measuring current transformer.......................................................... W...B-120T1
Rated operational voltage U
Operating characteristic acc. to IEC 60755 ..............................................................................type B
)
Rated residual operating current I
Δn1
Response delay t
...........................................................................................................................2 s
v
Relative percentage error ........................................................ refer table „conditions of operation"
Hysteresis.........................................................................................................approx. 25 % of I
Δn2
Delay on release..............................................................................................................................2 s
Rated residual operating current I
Rated frequency..................................................................................................................0...150 Hz
Relative percentage error ........................................................ refer table „conditions of operation"
Hysteresis.........................................................................................................approx. 25 % of I
Δn1
: ≤ 20 ms
Response time t
............................................................. 1 x I
an
Delay on release(only if R1/ R2 interconnected)..........................................................................2 s
.............................................................................................. 0.85 ... 1.1 x U
........................................................................................................50...60 Hz
s
.............................................................................................. AC 720 V
e
(prewarning) ................................... 150 mA (50 % x I
Δn2
(alarm)..................................................................... 300 mA
Δn1
Δn1
S
)
Δn1
Δn2
Δn1
: ≤ 130 ms / 5 x I
: ≤ 20 ms
Δn1
BP404005 / 07.2006