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Raychem ETS-05 Electronic Trace Heating Thermostat

Surface, Ambient and Line Sensing Electronic Thermostat


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ETS-05 Electronic Thermostat

nVent RAYCHEM ETS-05 hazardous area electronic surface sensing thermostats provide accurate temperature control for heating cables. The ETS-05 is available as an Ambient sensing thermostat and as line sensing thermostat. The ETS-05-L is adjustable to

 199 °C, ETS-05-H up to 499 °C. ETS-05 has a LED to indicate status of the thermostat, heating cable and sensor. The ETS-05 is available with an alarm relay for remote monitoring.


Application pipe freeze protection and temperature maintenance
Area of Use hazardous area
Sensor type surface temperature sensing
Temperature range -55°C to 260°C (ETS-05-L2**)
0°C to 499°C (ETS-05-H2**)
Maximum sensor lead resistance 20 Ohm
Setpoint range 0°C to 199°C (ETS-05-L2**)
0°C to 499°C (ETS-05-H2**)
Switch accuracy ± 1 K at 5°C (calibration point)
Switching hysteresis ≈ 3°C
Adjustable temperature range -40°C to +60°C
Supply voltage 195 – 230 V a.c. +10% 50/60 Hz (ETS-05-*2-**)
195 – 277 V a.c. +3% 50/60 Hz (ETS-05-*2R-**)
110 V a.c. ±10% 50/60 Hz (ETS-05-*1-**)
99 – 132 V a.c. 50/60 Hz (ETS-05-*1R-**)
Terminals power supply: 4 x 6 mm²
heating cable: 3 x 6 mm²
sensor: 4 x 1.5 mm²
Output relay single pole change over type (SPST)
Switching capacity output relay 32 A resistive load
Alarm relay 275 V a.c. 3A resistive load  ETS-05-**-**-A variants only
Circuit breaker max. 32 A (C-type characteristic)
Internal power consumption 3 VA
LED Indications
LED indication
  1. power ON, heat tracing cable OFF: GREEN
  2. power ON, heat tracing cable ON: YELLOW
  3. sensor failure: FLASHING RED
Material glass fibre reinforced polymer
Earthing plate ETS-05-**-EP variants only
Ingress protection IP 66
Mounting option On pipe: Support brackets SB-100, SB-101, SB-110, SB-111 and SB-130
Surface: using 4 x M6 fixing holes at 106 mm x 82 mm centres
Mounting holes 4 x M6
Entries 2 x M25: power / heating cable
1 x M16: sensor cable
1 x M20: alarm relay (ETS-05-**-**-A variants only)
Storage temperature -40°C to +50°C
Type PT100 3 wire, 2 m long, flexible (ETS-05-L2**)
PT100 3 wire, 2 m long, stainless steel (ETS-05-H2**)
Temperature range -55°C to 260°C (ETS-05-L2**)
0°C to 499°C (ETS-05-H2**)

Raychem ETS-05 Electronic Thermostat Datasheet

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