Insulation monitoring device for unearthed systems (IT systems) in photovoltaic systems up to 3(N)AC, AC 690 V / DC 1000 V Image similar

Device features • Monitoring for unearthed AC and DC systems with galvanically connected inverters or frequency converters • Measuring the system voltage Un (True-RMS) with undervoltage/ overvoltage detection • Measuring the DC residual voltages UL1e (L1/+ to PE) and UL2e (L2/- to PE) • Selectable start-up delay, response delay and delay on release • Alarm output via LEDs ("AL1", "AL2"), display, and alarm relays ("K1", "K2") • Automatic device self test with connection monitoring • Selectable n/c or n/o relay operation • Measured value indication via multifunctional LC display • Activatable...

Wiring diagram legend: Feed the supply voltage US via 5 A back-up fuses. Only use 60/75 °C copper lines.

ISOMETER® isoPV425 with AGH420 Kr BENDER Response values Definitions Supply circuit (IC2) Output circuit (IC3) Control circuit (IC4) Rated voltage Overvoltage category Response value Ran1 Response value Ran2 Relative uncertainty Ran Hysteresis Ran Undervoltage detection Overvoltage detection Relative uncertainty^ Hysteresis U 2...500 kO (10 kO)* 1...490 kO (5 kO)* ±15 %, at least ±1 kO 25 %, at least 1 kO 30.1140 V (off)* 31.1150 V (off)* ±5 %, at least ±5 V 5 %, at least 5 V Rated impulse voltage IC2/(IC3-4) 4 kV Rated insulated voltage Delay on release toff 0.99 s (0 s)* Displays, memory Display...

Switching elements 2 x 1 n.o. contacts, common Electrical endurance 10,000 cycles Classification of climatic conditions acc. to IEC 60721 (related to temperature and relative humidity) Rated operational voltage 230 V / 230 V / 24 V / 110 V / 220 V Rated operational current 5 A / 2 A / 1 A / 0.2 A / 0.1 A Minimum contact rating 1 mA at AC/DC > 10 V Classification of mechanical conditions acc. to IEC 60721 Operating mode Mounting Ambient temperatures Degree of protection, built-in components (DIN EN 60529) Degree of protection, terminals (DIN EN 60529) Enclosure material Screw fixing continuous...

ISOMETER® isoPV425 with AGH420 Kr BENDER Insulation coordination acc. to IEC 60664-1/-3 Environment/EMC Ambient temperatures Rated impulse voltage Rated insulated voltage Classification of climatic conditions acc. to IEC 60721 (related to temperature and rel.humidity) Protective separation (reinforced insulation) between Classification of mechanical conditions acc. to IEC 60721 Nominal system voltage range Un 3(N)AC, AC 0.690 V / DC 0.1000 V Nominal system voltage range Un AC/DC 0.600 V Operating mode Mounting Measuring circuit Measuring voltage Um Measuring current Im at RF Internal resistance...

Screw-type terminals Nominal current Tightening torque Conductor sizes Stripping length Rigid/flexible Flexible with ferrules with/without plastic sleeve Multi-conductor rigid Multi-conductor flexible Multi-conductor flexible with ferrules without plastic sleeve Multi-conductor flexible with TWIN ferrules with plastic sleeve EU Declaration of Conformity The EU Declaration of Conformity is available at the following Internet address: https://www.bender.de/fileadmin/content/Products/CE/ CEKO_isoXX425.pdf Push-wire terminals Nominal current Conductor sizes Stripping length Rigid Flexible without...

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