PTC-Resistor Relays, Thermistor-Relays Type MS
for the application as a protection device against inadmissible heating up at electrical equipment in areas with explosive gases (zones 1 and 2) and areas with combustible dust (21 an 22), e.g. for direct temperature-monitoring of explosion-proof motors EEx e and EEx d.
Ex II G [Ex e] [Ex d] [Ex px], Ex II D [Ex t]
SIL 1 (IEC 61508), PL c (ISO 13849).