isoPV425-D4 + AGH420 Isometer
Product description
The ISOMETER of the isoPV425 series monitors the insulation resistance of unearthed AC/DC main circuits (IT systems) AC, AC/DC 0...690 V or DC 0...1000 V.
The DC-fed components in AC/DC systems have no influence on the response behavior. The separate supply voltage also makes it possible to monitor the de-energized system. The maximum permissible system leakage capacitance is 500 µF.
Main features:
- Insulation monitoring device for AC and DC IT systems
- Application Photovoltaic systems up to AC 690 V/DC 1000 V
- Separately adjustable response values 1 kΩ...1 MΩ
- Automatic adaptation to the grid leakage capacitance up to 1000 μF
- Measurement of mains voltage (RMS) with undervoltage/overvoltage detection
Features and functions:
- Insulation monitoring for unearthed systems AC, AC/DC 0...690 V, DC 0...1000 V
- Measurement of the nominal system voltage with undervoltage/overvoltage detection
- Measurement of mains to earth voltages (L+/PE and L-/PE)
- Measurement of the mains leakage capacitance
- BMS interface
- Fault location message L+/L- via display and relay contacts
- Automatic adjustment to mains leakage capacitance up to 500μF
- Supply voltage range DC 24...240 V/AC 100...240 V
- Self-monitoring and connection monitoring mains/earth with automatic message
- Indicator LEDs for operation, alarm 1 and alarm 2
- Internal/external test/reset button
- Two alarm relays with common root (one NO contact each)
- Working/quiescent current selectable
- Fault memory selectable
- Multifunctional LC display
- Adjustable response delay
- Compact 2-module housing (36 mm) plus coupling in 2-module housing
- Quick wiring with spring terminals
Technical features:
- Rated voltage AC 0...793 V, DC 0...1100 V
- Supply voltage AC 70...300V / DC 70...300V
- Dimensions ISO-PV W 36 x H 90 x D 70.5 mm
- Dimension AGH-420 W 36 x H 90 x D 70.5 mm
Applications:
- AC, DC or AC/DC main circuits
- Solar systems with directly connected inverters
- Solar systems with large grid capacities
- Solar systems with high but slow voltage fluctuations
- Systems with switching power supplies
