Zweipoliger Fehler
(nur CHd Mode)
R
FS
Mess- und Anzeigebereich
R
Messunsicherheit
/ Ansprechunsicherheit
R
FS
< 160 kΩ ...................................................................±15 %, ±2 kΩ
Messunsicherheit
C
e
R
< 10 kΩ ................................................................keine Messung
F
R
≥ 10 kΩ ............................................................. ±15 %, ±0,1 µF
F
Ansprechzeit t
an
R
= 1,2 × R
und R
an
FU
FU
R
= 1,2 × R
........................................................................≤ 10 s
an
F
Schnittstelle
Schnittstelle/Protokoll .....................RS-485/BMS, Modbus RTU, isoData
Baudraten ............................BMS (9,6 kbit/s), Modbus RTU (einstellbar)
..............................................................................isoData (115,2 kbit/s)
Leitungslänge (9,6 kbit/s) ...................................................... ≤ 1200 m
Leitung: paarweise verdrillt ...................................min. J-Y(St)Y 2 × 0,6
Abschlusswiderstand. ..................... 120 Ω (0,25 W), intern, zuschaltbar
Geräteadresse, BMS-Bus, Modbus RTU .................................3...90 (3)*
Anschluss (isoCHA425HV und AGH)
Federklemmen
Nennstrom ................................................................................. ≤ 10 A
Querschnitt ...................................................................... AWG 24...14
Abisolierlänge .............................................................................10 mm
Starr .................................................................................0,2...2,5 mm
Flexibel ohne Aderendhülse. ..........................................0,75...2,5 mm²
Flexibel mit Aderendhülse mit/ohne Kunststoffhülse ....0,25...2,5 mm²
Mehrleiter flexibel mit TWIN Aderendhülse mit Kunststoffhülse ............
........................................................................................ 0,5...1,5 mm
Öffnungskraft ...................................................................................50 N
Testöffnung ........................................................................... Ø 2,1 mm
Sonstiges
Betriebsart ......................................................................... Dauerbetrieb
Einbaulage .............. Kühlschlitze müssen senkrecht durchlüftet werden
Schutzart Einbauten (DIN EN 60529) ............................................... IP30
Schutzart Klemmen (DIN EN 60529) ................................................ IP20
Schnellbefestigung auf Hutprofilschiene .................................IEC 60715
Schraubbefestigung .......................................... 2 x M4 mit Montageclip
..............................................1...160 kΩ
FS
R
an
≤ 100 kΩ und U
> 100 V ..................≤ 1 s
n
ISOMETER® isoCHA425HV + AGH420-1/AGH421-1
Two-pole fault
(only CHd mode)
R
FS
Measuring and display range
Measurement uncertainty
< 160 kΩ ...................................................................±15 %, ±2 kΩ
Measurement uncertainty
R
< 10 kΩ ............................................................ no measurement
F
R
≥ 10 kΩ ............................................................. ±15 %, ±0.1 µF
F
Response time t
an
R
= 1.2 × R
and R
an
FU
R
= 1.2 × R
........................................................................≤ 10 s
an
F
Interface
Interface/protocol ...........................RS-485/BMS, Modbus RTU, isoData
Baud rates ............................ BMS (9.6 kbit/s), Modbus RTU (selectable)
..............................................................................isoData (115.2 kbit/s)
Cable length (9.6 kbit/s) ........................................................ ≤ 1200 m
Cable: twisted pairs................................................min. J-Y(St)Y 2 × 0.6
Terminating resistor ........... 120 Ω (0.25 W), internal, can be connected
Device address, BMS bus, Modbus RTU ................................3...90 (3)*
Connection (isoCHA425HV and AGH)
Push-wire terminals
Nominal current ......................................................................... ≤ 10 A
Cross section ..................................................................... AWG 24...14
Stripping lenght ..........................................................................10 mm
2
Rigid ................................................................................0.2...2.5 mm
Flexible without ferrules ................................................0.75...2.5 mm²
Flexible with ferrules with/without plastic sleeve .........0.25...2.5 mm²
Multiple conductor flexible with TWIN ferrules with plastic sleeve ........
2
.........................................................................................0.5...1.5 mm
Opening force ..................................................................................50 N
Test opening .......................................................................... Ø 2.1 mm
Other
Operating mode .................................................... continuous operation
Mounting .............................. cooling slots must be ventilated vertically
Degree of protection, built-in components (DIN EN 60529) ............. IP30
Degree of protection, terminals (DIN EN 60529) .............................. IP20
DIN rail mounting ....................................................................IEC 60715
Screw mounting ......................................... 2 × M4 with mounting clip
isoCHA425HV_D00404_05_Q_DEEN / 11.2023
..........................................1...160 kΩ
R
FS
/ Relative uncertainty
R
R
FS
an
C
e
≤ 100 kΩ and U
> 100 V ..................≤ 1 s
FU
n
2
2
11
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