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Reference GKNS110AR

KNS 110A temperature sensor series

Type of sensitive element any type

Temperature difference

-40 ° C to 100 ° C (measuring range can be extended - see modifications)

Protection class IP 65 according to EN 60529

Connection head material

LEXAN (compliant with standard EN 45545-2)

Rod material stainless steel DIN 1.4301

Recommended wire cross section 0,35 to 1,5 mm2

Response time τ0,5 <9 s (in running water at 0,4 ms-1)

Isolation resistance

> 200 MΩ at 500 VDC, temperature 25 ° C ± 3 ° C, humidity <80%

Average life ≈ MTTF * 1,2 x 105 h - based on a theoretical calculation

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


Shock and vibration tests

category 1, class B according to EN 61373

Insulation test 4 kVDC for 1 minute according to EN 50155

Fire resistance

according to EN 45545 (possible according to NFPA 130)

Note: The manufacturer reserves the right to modify the design and technical characteristics of the products. For actual information, please always contact your dealer.


The KNS 110A series of temperature sensors are designed to measure the temperature of the outside air. In the application segment of rail vehicles, sensors are used, for example, to measure the air temperature in engine rooms of locomotives; it can be part of the temperature control system in the passenger compartments or is used to indicate the temperature in the engine room as part of the fire protection system.

The sensors consist of the plastic head, where the sensing element is placed. All metal parts are made of DIN 1.4301 stainless steel. The length of the rod is 25 mm. The input cable is connected to the terminal block via a grommet, which is part of the connection head. The base material of the head is LEXAN. The sensors can be used for all control systems compatible with the types of detection elements listed in the table of technical parameters. The maximum operating temperature range of the sensor is -40 ° C to 100 ° C. The sensor complies with the protection index IP 65 according to standard EN 60529, as amended.

The sensors are intended to operate in a chemically non-aggressive environment.


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

- Insulation test according to EN 50155, as amended

- Shock and vibration tests according to EN 61373, as amended

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

- variable rod design - length L

- Class-leading precision (except for Ni 10000/5000, Ni 10000/6180, T1 = Ni 2226, NTC 20 kΩ)

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

- possibility of enclosing two sensors

- possibility of 3-wire or 4-wire connection

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