System insulation monitoring and safety relays suitable for permanent monitoring of IT electrical lines. Insulation monitoring devices are widely used in electrical panels on mobile generator sets. These devices can monitor the insulation of lines up to 500Vac, and have a potentiometer on the front panel to set the impedance trip threshold. They have an indicator LED (Fault) and a relay that switches in the event of an earth insulation fault.
Isolation monitoring sentinel for LV networks up to 500 Vac; 2 modules; 110–230–400 Vac power supply.