ISOMETER® isoGEN423 Insulation monitoring device for unearthed AC, AC/DC, and DC systems up to 3(N)AC, AC 400 V, DC 400 V Suitable for the application of generators acc. to standard DIN VDE 0100-551 Image sililar

Insulation monitoring device for unearthed AC, AC/DC, and DC systems up to 3(N)AC, AC 400 V, DC 400 V Suitable for the application of generators acc. to standard DIN VDE 0100-551 Intended use The ISOMETER® monitors the insulation resistance RF of unearthed AC, AC/DC and DC systems (IT systems) with nominal system voltages of 3(N)AC, AC/DC 0…400 V or DC 0…400 V. The maximum permissible system leakage capacitance Ce is 5 μF. DC components existing in AC systems do not influence the operating characteristics when a minimum load current of DC 10 mA flows. The separate supply voltage Us allows deenergised...

Connection For UL applications: Only use 60/75 °C copper lines. For UL and CSA applications: Connect the supply voltage via 5 A fuses. For details about the conductor cross sections required for wiring, refer to chapter Technical data. Wiring diagram L1/+ L2/L3 Connection to the supply voltage Us via fuse (line protection): If supplied from an IT system, protect both lines by a fuse. Test / Reset Connect each terminal separately to PE: Use same wire cross section as for “A1”, “A2”. Connection to the system to be monitored Connection for the external combined test and reset button Connection to...

Technical data Response values Measuring circuit (IC1) Supply circuit (IC2) Output circuit (IC3) Control circuit (IC4) Response value Ran1 Response value Ran2 Relative uncertainty of Ran Hysteresis Ran Undervoltage detection U< Overvoltage detection U> Relative uncertainty of U Relative uncertainty depending on the frequency > 400 Hz Hysteresis U Rated impulse voltage Rated insulation voltage Time response Delay on release toff 0.99 s (0 s)* Displays, memory Supply voltage Us Tolerance of Us Frequency range of Us Power consumption Safe isolation (reinforced insulation) between Voltage test (routine...

Switching elements Connection Switching elements 2 x 1 N/O contacts, common terminal 11 Relay mode NC operation/NO operation (NO Electrical endurance at rated operating 10,000 operating cycles Contact data acc. to IEC 60947-5-1 Utilisation category AC-12 / AC-14 / DC-12 / DC-12 / DC-12 Rated operational voltage 230 V / 230 V / 24 V / 110V / 220 V Rated operational current 5 A / 2 A / 1 A / 0.2 A / 0.1 A Necessary min. contact load (relay 1 mA at AC/DC > 10 V manufacturer's reference) Environment/EMC Screw-type terminals Nominal current Tightening torque Conductor sizes Stripping length Rigid/flexible...

Standards and certifications The ISOMETER® was developed in compliance with the following standards: EU Declaration of Conformity The EU Declaration of Conformity is available at the following Internet address: UKCA Declaration of Conformity Die UKCA-Konformitatserklarung ist unter folgendem Link verfugbar: Ordering data 1) Option W: Increased shock and vibration resistance 3K23; 3M12; -40...+70 °C Accessories Dimensions Description © Bender GmbH & Co. KG, Germany Subject to change! The specified standards take into account the edition valid until 08.2024 unless otherwise indicated. RBENDERBender...