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KNS 100

Description and application

KNS 100

The series of KNS 100 temperature sensors is designed to measure temperature of gaseous substances in spaces protected against water. In the application segment of Railway Vehicles, the sensors are used to measure temperature in passenger compartments of train units and carriages and is a part of the temperature control system.

The sensors consist of the plastic ribbing head, where the sensing element is placed. Maximum temperature range of sensor use is -40 to 100 °C. The sensors can be used for any control systems compatible with types of sensing elements listed in the table of technical parameters. The sensor meets ingress protection IP 30 according to EN 60529 standard, as amended. Suitable design and high-quality material ensure that the sensors do not feel disturbing even in the interiors with high aesthetic requirements. You can choose the color of the box white or gray.

The sensors are intended for operation in chemically non-aggressive environment.


  • The type tests are carried out by a notified body according to EN 50155 standard, as amended, Railway applications – Electronic equipment used on rolling stock, Art. 12.2.9, 12.2.11

- Insulation test in accordance with EN 50155, as amended

- Shock and vibration tests in accordance with EN 61373, as amended

The material of the plastic box and PCB meets a set of requirements for the R 24 materials according to the Table 5 for the fire hazard level HL1-HL2-HL3 of the EN 45545-2 standard, as amended. Can be supplied with materials complying with fire safety standard NFPA 130, as amended.

  • Manufacturer provides EU Declaration of Conformity.
  • Calibration – The final metrological inspection – comparison with standards or working instruments – is carried out for all the products. Continuity of the standards and working measuring instruments is ensured within the meaning of the Section 5 of Act no.505/1990 on metrology. The manufacturer offers a possibility to supply the sensors calibrated in SENSIT s.r.o.’s laboratory (according to requirements of the EN ISO/IEC 17025 standard, as amended) or in an Accredited laboratory.


  • Specifications
  • Modification
  • Wiring diagram
  • Dimensional draft
  • Download
Serie of temperature senosr KNS 100
Type of sensing element all types
Temperature range
-40 °C to 100 °C
Ingress protection IP 30 in according with EN 60529
Diameter of connection head
71.9 x 59 x 27 mm
Connection head material LEXAN (meets standard EN 45545-2)
Recommended wire cross section 0.35 to 1 mm2
Response time τ0.5 < 8 s (in flowing water at 0.4 ms-1)
Insulation resistance
>200 MΩ at 500 VDC, temperature 25 °C ± 3 °C, humidity < 80%
Mean working life ≈ MTTF* 1.2 x 105 hrs - based on a theoretical calculation

* Under the environmental and operational conditions specified in approved testing methodology.


Shock and vibration tests

category 1, class B in accordance with EN 61373
Insulation test 1.5 kVDC for time 1 minute in accordance with EN 50155
Fire protection resistance
in accordance with EN 45545 (possible acc. to NFPA 130)

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.

- A class precision (with the exception Ni 10000/5000, Ni 10000/6180, T1 = Ni 2226, NTC 20 kΩ)

- possibility of encasing non-standard temperature sensors (DALLAS, TSiC, KTY, SMT, TC etc.)

- possibility 3wire or 4wire connection

Datasheet-Series of resistance sensor KNS 100
Datasheet-Series of resistance sensor KNS 100Datasheet-Series of resistance sensor KNS 100
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