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Thermostats

Wide range of thermostats for use in hazardous areas
R. STAHL's thermostats ensure that the required temperatures are reliably maintained. Our comprehensive range includes numerous types, designs and output levels – whatever your hazardous-area situation, we have the right model here for you. Clever accessories optimise your installations.

R. STAHL's thermostats are available in a variety of designs and for different applications: Ambient temperature thermostats, capillary tube thermostats and electronic thermostats, as well as thermostats for wall-mounting. They provide frost protection and ensure that the correct temperature is maintained in control boxes, electrical wiring and telecommunications systems. We tailor the size, design and output of the thermostats to your exact requirements.

Reliable temperature setting for a wide range of applications
Suitable for Ex Zones 1 and 2
Suitable for shipbuilding, offshore applications and extreme temperatures

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Select the product lines that are applicable to your intended use.

Zones

2 G | Gb | Zone 1
3 G | Gc | Zone 2

Schlagwetter-Gerätegruppe

Gas-Device subgroup

IIB
IIB+H2
IIC

Gas-Temperaturklasse

Dust-Max. surface temperature

Min. ambient temperature

-50 °C

Max. ambient temperature

+50 °C

Type of protection (IP)

IP54
IP55
IP56
IP64
IP65
IP66
IP66 / IP67

Signal types

Max. measuring range

Min. measuring range

Opening temperature OFF

+11,7 °C
+20 °C
-2,8 °C

Closing temperature ON

+3,3 °C
+10 °C
-10 °C

Material

Acid-resistant stainless steel
Brass
Chromium‐plated brass

Description 1

Ambient Sensing Electronic Thermostat
Ambient air temperature control device
Electronic Thermostat - Wall Mounted / Pipe Mounted
Junction box for heat tracing
Temperature controller

9 Series (35 Products)

Ambient Air Thermostat Series TEF502392xx

Small dimensions
Local NO 16 A contacts
Easy to install

Ambient Sensing Electronic Thermostat Series TEF1058

High ingress protection IP66/67 is standard, IP68 can be delivered upon request
Drainage flange in box prevents penetration of water
Manufactured in acid proof stainless steel (AISI 316L)
Tailor made size and performance is possible
Stainless steel type label spot welded to the cover
Several earthing alternatives
Maximum strength and corrosion resistance
Low lifetime maintenance cost

Capillary Tube Thermostat Series TEF1058

High degree of protection IP66/67 is standard, IP67 without breather
Manufactured in acid proof stainless steel (AISI 316L)
Stainless steel type label spot welded to the cover
Several earthing alternatives
Maximum strength and corrosion resistance
High operational reliability
Low lifetime maintenance cost
Recommended for up to 4 heating cables

Electronic Thermostat - Wall Mounted / Pipe Mounted Series TEF1058

High degree of protection IP66/67 is standard, IP68 can be delivered upon request
Drainage flange in box prevents penetration of water
Manufactured in acid proof stainless steel (AISI 316L)
Tailor made size and performance is possible
Stainless steel type label spot welded to the cover
Several earthing alternatives
Maximum strength and corrosion resistance
Low lifetime maintenance cost