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Aplikace snímačů Sensit

Temperature sensors to electric motor windings


Temperature sensors of high electric strength and mechanical durability for measuring temperature in electric motor windings, bearings, transmissions 

Cable resistance temperature sensors encapsulated in metal housing or in heat-shrink tube. These temperature sensors operate in various temperature ranges from -50 °C to 260 °C (according to temperature sensor type). The most common sensing elements are Pt 100, Pt 1000, Ni 1000, KTY, NTC, PTC. 

Temperature sensors are most frequently used for measuring the temperature of electric motor windings (sensors with insulation of shrink tube), measuring the temperature in bearings, measuring the temperature of engine oil, measuring the temperature in transmissions and other. Other applications Snímače teploty do vinutí elektromotorůof these temperature sensors can include temperature measurements in laboratories and in testing facilities, measurements of temperature of solid, liquid and gaseous substances. Temperature sensors have high electric strength up to 12 kV, according to sensor type (electric strength can be even higher if requested).

Temperature sensors comprise the sensing element Pt 100 or Pt 1000, but they can also be fitted with thermistors NTC or PTC, and even KTY. Cables or conductors are connected with the sensing element (various types according to application and customer’s request) and encapsulated in metal housing or heat-shrink tube. Measuring ranges of the sensors vary according to the type of application.

Measurement of electric motor winding temperature
Measurement of electric motor winding temperature
Measurement of electric motor winding temperature

Temperature sensors into electric motor windings - temperature sensors insulated by heat-shrink tube TR 097x type 

Cable temperature sensors whose housing comprises a heat-shrink tube. These sensors are distinguished for their high electric strength (5 kV - it can be even higher if requested) and their most common application is measuring the temperature in electric motor windings.

Basic parameters of temperature sensors insulated by heat-shrinking sleeve:

  • Sensing element: Pt 100, Pt 1000, Ni 1000, NTC, PTC, KTY, other as requested 
  • Temperature range of use: temperature class H -20 °C to 180 °C 
  • Lead-in wires: teflon FEP or PFA 0.22 mm2 
  • Electric strength: 5 kV 
  • Ingress protection: IP 20 
  • Connection: 2wire, 3wire or 4wire 

Parameters and design of the sensor may be adjusted as requested. 


Temperature sensors into electric motor stator slot TR 097V type 

Cable temperature sensors with the housing made of Sklotextit frame and heat-shrink tube. These temperature sensors are distinguished for their high electric strength (12 kV) and most frequently used for measuring the temperature in the slot of the electric motor stator.

Basic parameters of temperature sensors insulated by heat-shrinking sleeve:

  • Sensing element: Pt 100, Pt 1000, Ni 1000, NTC, PTC, KTY, other as requested 
  • Temperature range of use: temperature class H -20 °C to 180 °C 
  • Case: Sklotextit frame covered with heat-shrinking sleeve 
  • Lead-in wires: teflon APFA 
  • Electric strength: 12 kV 
  • Ingress protection: IP 65 
  • Connection: 2wire, 3wire or 4wire 
Parameters and design of the sensor may be adjusted as requested. 

Temperature sensors for measuring temperature in bearings, engine oil, transmissions 

Resistance temperature sensors encapsulated in the housing of stainless steel DIN 1.4301. The diameter of the housing is 1.5 mm. Thermal resistance of the sensors is up to 400 °C, depending on the selected type of input cable. IP protection of the sensors can be up to IP 68. The design of the sensors depends on the application and can be with smooth metal case, with threading, contact temperature sensors, temperature sensors with bayonet lock, temperature sensors with connector, right-angle temperature sensors. The temperature sensors utilize the technology ensuring their higher resistance against impacts and vibrations. Stainless protection tube can be used as a protective element of lead-in wires.

The temperature sensors with bayonet lock ensure permanent thrust of the sensor onto the measured place, protecting the sensor against mechanical damage if the object being measured is vibrating. Also, it ensures better reading of temperature.

Hannover Messe 2026

Dear business friends, please accept our invitation to one of the most important and largest industrial fairs in the world - Hannover Messe, which takes place from from April 20 to 24, 2026 in Hannover, Germany.You can find us in hall 27, stand G05.

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10/04/2026

SENSIT Celebrates 35 Years

From Portable Cabins to High-End SensorsThe development of industry has always gone hand in hand with precise measurement. Temperature, humidity, CO₂, level, flow, and position – modern production and automated control of technological processes cannot function without these data today. The Czech company SENSIT s.r.o. has been part of the industrial measurement technology sector for 35 years and ranks among the stable manufacturers of sensors for non-electrical quantities not only in the Czech Republic but also abroad.

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10/03/2026

New hardware addressing for indoor sensors with RS 485 output

Dear Business Partners,Based on your frequent requests, we have implemented a modification to our indoor combined sensors with an RS 485 output.The electronics are now equipped with a hardware address switch, which allows easy configuration of up to 14 addresses without the need to connect the sensor to a device or use software. Address setting is therefore faster and significantly easier directly during installation.

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05/03/2026

New HW addressing for indoor sensors

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05/03/2026

New Product – Temperature Sensor with Connector and 4–20 mA Output

We would like to inform you that we have expanded our range of connector-type temperature sensors with a new version featuring a 4–20 mA current output.With this step, we are responding to requirements from practical applications where a current output is frequently requested.The new sensor is designed for direct installation into the measured medium and is suitable for use within a temperature range of –50 to +150 °C.

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04/03/2026

Amper 2026 in Brno

Dear business friends,Let us to invite you to Brno to the largest international trade fair of electrical engineering, electronics and energy in the Czech Republic and Slovakia - AMPER 2026, which will take place from 17 to 19 March 2026.

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02/03/2026

Exhibitions 2026

Exhibitions 2026 - Which Exhibitions await us in 2026?

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30/01/2026

PF 2026

PF 2026

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18/12/2025

Christmas at SENSIT

Christmas at SENSIT

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02/12/2025

New Paired Temperature Sensor

Introducing the New Paired Temperature Sensor TP 16B

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01/12/2025

Invitation to HOST Milano 2025

Invitation to HOST Milano 2025

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02/10/2025

Invitation for Hannover Messe 2025

Let us invite you to one of the most important and largest industrial fairs in the world - Hannover Messe, which takes place from 31st March to 4th April in Hannover, Germany.

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Invitation for AMPER 2025

Let us to invite you to Brno to the largest international trade fair of electrical engineering, electronics and energy in the Czech Republic and Slovakia - AMPER 2025, which will take place from 18 to 20 March 2025.

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24/03/2025

Exhibitons 2025

Visit us at one of the planned trade fairs that take place in 2025.

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Novelty among paired sensors

Let us introduce you the new temperature sensors TP 16B for heat meters that have expanded our portfolio of paired sensors.

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16/01/2025

PF 2025

We wish you Merry Christmas spend in joy and peace.

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18/12/2024

Christmas holiday

We´d like to inform you that from December 23rd 2024 to January 3rd 2025 we will have the Christmas company holiday.

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12/11/2024

Head temperature sensors

Let us introduce you head temperature sensors in several variants.

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24/10/2024

Invitation for Chillventa 2024

We invite you to the world's leading exhibition of refrigeration technology - Chillventa 2024!

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Invitation for Innotrans 2024

We would like to invite you to the biggest tradefair focused on railway vehicles –⁠⁠⁠⁠⁠⁠ Innotrans 2024, that will take place in Berlin from 24th to 27th September 2024.

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CONTACT

SENSIT s.r.o.

Školní 2610, 756 61 Rožnov pod Radhoštěm


+420 571 625 571

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