Insulation monitor for medical applications SRI3/H2 INJ
for AC networksfor three-phase systemsfor low voltage network

insulation monitor for medical applications
insulation monitor for medical applications
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Characteristics

Options
for AC networks, for three-phase systems, for low voltage network, with insulation fault location, with temperature monitoring, with overcurrent protection, with automatic reset, with manual reset, for single-phase electrical networks
Contact configuration
2 NC, 2 NO
Mounting
DIN rail
Communication
RS485, Modbus RTU
Applications
for medical applications

Description

SRI3/H2 INJ - Fault locator – Injector - 6 Din modules Ran: 50 KΩ ÷ 1 MΩ Developed for medical and hospital environments, the SRI3H2INJ insulation controller allows you to continuously monitor the status of LV networks with neutral isolated from earth (IT-M systems). The instrument signals the first earth fault on the display indicating both the value in KΩ of the leakage and the maximum fault current that could flow through the resistive leakage itself. The device is also able to monitor the temperature of the isolation transformer, current overload and over/under voltage. The insulation resistance measurement is carried out by applying an alternating voltage with an amplitude less than 24Vp-p at a self-adaptive variable frequency (in accordance with IEC 61557-8). To carry out the failure search procedure, the Sri3/H2inj must be combined with the H2FL12S485 or H2FL18S485 expansion. Localization is made possible thanks to special FL series toroids (one for each departure to be controlled). When the lack of insulation signal occurs, the injector will be able to start the fault finding procedure at the end of which it will be indicated on the display of the expansion (H2FL12 or H2FL18 series) on which starts there is a loss of insulation. It can be connected to a supervision system or to our EVO LCD monitoring system. The controller can be installed with a maximum of 4 PSR3 series remote signaling panels (optical/acoustic signaling)

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