AC network insulation monitor SRI3/I2

DCAC/DCfor three-phase systems

SRI3/I2 - 2 thresholds - 6 Din modules The SRI3/I2 insulation monitor allows you to continuously monitor the status of networks with isolated neutral from earth (IT systems). The instruments are able to detect insulation defects due to the resistive component, even in the presence of parasitic DC voltages. The devices offer two different signaling levels (fault and alarm). The insulation resistance measurement is carried out by applying an alternating voltage with an amplitude of less than 24Vp-p (in accordance with IEC61557-8) at a self-adaptive variable frequency. - control with variable frequency signal injection - mains to be controlled: AC/DC ≤500 Vdc/Vac – DC ≤700Vdc - 2 fault thresholds + alarm - Ran regulation: 5 KΩ ÷ 2 MΩ - visualization on the display - Measure of temperature -internal NTC - PTC - mains voltage display with over/under threshold setting - 3 independent NO-C-NC contacts - setup password protection Other caracteristics - digital - programmable - modular - smart - configurable RS485 ModBus Standard RTU serial output option (code 9SRI3/I2RS485 only). The SRI3/I2 insulation monitor can be installed with the special SRI3/EXT2 expansion which allows you to monitor AC/DC ≤1000 Vdc/Vac - DC ≤1500 Vdc power lines