Pentair Thermal Management Becomes nVent
- A New Opportunity to Spark Innovation

Your trusted brands RAYCHEM, TRACER, NUHEAT, PYROTENAX and TraceTek are now part of nVent Thermal Management.

The new company website is in development and will be launched in January 2019. Until then, we are happy to serve your information needs through our current website.

For more information on nVent:
Download press release
Visit nVent.com
(currently English only)

nVent RAYCHEM Raystat-EX-04 electronic ambient trace heating thermostat


The units can be supplied at nominal voltages of either 110 V 50/60 Hz or 230 V 50/60 Hz and has a double pole switch rated at 16 A. The switch contacts can be arranged to be volt free. The temperature setting is set via digital thumb wheel switches inside the enclosure. The thermostat is supplied with a PT100 sensor mounted in a wind shield housing.

Technical Specifications

Area of useHazardous area: Zone 1 or Zone 2 (Gas) or Zone 21 or Zone 22 (Dust) &Ordinary
Temperature range0°C to 49°C
Ambient temperature range–50°C to +55°C
Output relayDual pole change overtype (DPDT) (optional volt free)
Switching capacity16 A 110 Vac ±10% 50/60 Hz resistive load
Supply voltage110 Vac ±10% 50/60 Hz  230/253 Vac ±10% 50/60 Hz
Switching capacity230/253 Vac ± 10% 50/60 Hz


Installation Manuals
Connection and Protection