YWRTC 230Vhttps://www.cca.co.uk/image.php?filename=ywrtc+230v.jpg&stockcode=YWRTC 230V&category=0007000f0006&width=1000&height=1000Thermistor monitoring relays, in a din rail housing available as SPCO or DPCO. The relays will monitor a series circuit of up to 6 thermistors having a total "healthy" resistance not exceeding 1500 Ohms, the output relay/s will be energised indicated also by a red LED. Should overheating occur the individual resistance of a thermistor will rapidly rise above 3.3 KOhms at which point the normally energised relay/s will de-energise, accompanied by the red LED extinguishing. In non latched mode (the link between terminals Y1 & Y2 left open) the relay/s will re-energise when the circuit resistance drops below 1.8 KOhms. In latch mode (the link between terminals Y1 & Y2) the unit can be reset when this closed link is opened, provided the circuit resistance is below 1.8 KOhms. In the event of a short circuit or auxiliary supply loss the unit will de-energise.
Thermistor monitoring relays, in a din rail housing available as SPCO or DPCO. The relays will monitor a series circuit of up to 6 thermistors having a total "healthy" resistance not exceeding 1500 Ohms, the output relay/s will be energised indicated also by a red LED. Should overheating occur the individual resistance of a thermistor will rapidly rise above 3.3 KOhms at which point the normally energised relay/s will de-energise, accompanied by the red LED extinguishing. In non latched mode (the link between terminals Y1 & Y2 left open) the relay/s will re-energise when the circuit resistance drops below 1.8 KOhms. In latch mode (the link between terminals Y1 & Y2) the unit can be reset when this closed link is opened, provided the circuit resistance is below 1.8 KOhms. In the event of a short circuit or auxiliary supply loss the unit will de-energise.
