b) Connected devices
• Always observe the safety instructions and operating instructions of any other
devices which are connected to the product.
c) Installation
• The product may only be installed by a qualified technician (e.g. electrician)
who is familiar with the relevant regulations (e.g. VDE, German electrical wiring
regulations)!
By carrying out improper work on the mains voltage you endanger not only
yourself, but also others!
If you are not sure how to install the product, consult a specialist. Do not attempt
to install it yourself.
• The thermostat may be installed and operated only in an enclosed housing. Only
the shaft for the dial may lead outside. The provided dial (or another suitable dial)
must be mounted on the shaft.
• The specified safety distance between live components carrying mains voltage
(contacts or connections on the thermostat, etc.) and exposed parts of the
enclosure (the device in which the thermostat is installed) must be maintained
at all times.
• The device in which the thermostat is to be installed must be separated from
the mains voltage and all other cables/leads. Disconnect the mains plug from the
mains socket.
If the device does not have a mains plug, but is permanently connected to the
mains voltage, switch off the corresponding circuit breakers and also the appliance
leakage circuit interrupter so that the mains supply line is disconnected from the
mains voltage at all poles.
Protect the product from unauthorised use (e.g. install a danger sign).
Check to make sure there is no voltage with a suitable measuring instrument
(e.g. a digital multimeter).
• Capacitors in the device in which the thermostat is to be installed can remain
charged for a long time, even after the device is switched off and disconnected
from the mains voltage.
There is a risk of fatal electric shock!
• Do not use the thermostat in rooms or under adverse ambient conditions where
combustible gases, vapours or dust are or may be present! This may cause an
explosion!
• The input power of the thermostat (see "Technical Data") must not be exceeded.
• When shifting the capillary tube and also when attaching the sensor, make
sure that neither the capillary tube nor the sensor is bent, pinched or otherwise
damaged.
The capillary tube and also the sensor cannot and may not be shortened or cut off.
Do not turn any screws or anything similar through the sensor tip.
Doing so renders the thermostat unusable!
Operating elements
ø 6.00±0.02
4.
50
+0
.0
2
-0
.0
5
C
1
2
29.0
30
.0
46.0
2-M4X0.7P
35
.0
46.5
5.0
28.0±0.25
15
.0
+1.5/-1.0
Operating Instructions
Built-in thermostat
Item no. 1953951 - Built-in thermostat 50 – 200 °C
Item no. 1953952 - Built-in thermostat 0 – 90 °C
Item no. 1953953 - Built-in thermostat 50 – 320 °C
Intended use
The product is used for temperature control (for example, in conjunction with heaters). All the
safety and installation instructions must be followed carefully.
This product is intended for indoor use only. Do not use it outdoors. Contact with moisture
(e.g. in a bathroom) must be avoided under all circumstances.
For safety and approval purposes, do not rebuild and/or modify this product. Using the product
for purposes other than those described above may damage the product. In addition, improper
use can cause hazards such as a short circuit, fire or electric shock. Read the instructions
carefully and store them in a safe place. If you pass the product on to a third party, please hand
over these operating instructions as well.
This product complies with statutory, national and European regulations. All company and
product names contained herein are trademarks of their respective owners. All rights reserved.
Delivery content
• Thermostat
• Operating instructions
Up-to-date operating instructions
Download the up-to-date operating instructions at www.conrad.com/downloads
or scan the QR code shown. Follow the instructions on the website.
Explanation of symbols
The symbol with the lightning in a triangle indicates that there is a risk to your health,
e.g. due to an electric shock.
The symbol with an exclamation mark in a triangle is used to highlight important
information in these operating instructions. Always read this information carefully.
The arrow symbol indicates special information and tips on how to use the product.
Safety instructions
Read the operating instructions carefully and observe in particular the safety
instructions. If you do not follow the safety information and information on
proper handling in these operating instructions, we will assume no liability for
any resulting personal injury or damage to property. Such cases will invalidate
the warranty/guarantee.
a) General information
• The product is not a toy. Keep out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. It may become a
dangerous toy for children.
• Protect the product from extreme temperatures, direct sunlight, strong jolts, high
humidity, moisture, flammable gases, vapours and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, take it out of operation and
protect it from any accidental use. Safe operation can no longer be guaranteed
if the product:
- is visibly damaged,
- is no longer working properly,
- has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stresses.
• Please handle the product carefully. Jolts, impacts or a fall even from a low height
may damage the product.
• In industrial facilities, the accident prevention regulations for electrical equipment
and facilities issued by the Industrial Employers' Liability Association must be
adhered to!
• Consult a technician if you are not sure how to use or connect the product, or if
you have concerns about safety.
• Maintenance, modifications and repairs must only be carried out by a technician
or a specialist repair centre.
• If you have any questions that are not answered in these operating instructions,
please contact our technical customer service or other professionals.
