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Reference GKTR026HR

Sensor type KTR 026H

Type of sensitive element Pt 100/3850, Pt 1000/3850

Temperature difference

-30 ° C to 350 ° C short term up to 450 ° C

Protection class IP 67 according to EN 60529

Case dimension 6 x 6 mm

Case length

45/85 mm

Housing material stainless steel DIN 1.4301

2 x 0,22 mm2 shielded silicone input cable

silicone shielded 4 x 0,15 mm2

Wire resistance

0,162 Ω for 1 m of cable for 2-wire connection

Response time τ0,5 <4 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 2 according to EN 61373

Insulation test 2,5 kVDC for 1 minute according to EN 50155

Fire resistance

according to EN 45545

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 KTR 026H temperature sensor is designed to measure the surface temperature of solid substances with a smooth surface. In the application segment of rail vehicles, has been developed to control the heating of trolleybus pulleys.

The temperature range of use of the sensor, relating only to the square part of the housing, is -30 ° C to 350 ° C; the sensor can be exposed to a temperature of up to 450 ° C for a short time. The sensor consists of a metal housing in which the detection element and the input cable are placed. The sensor conforms to the degree of protection IP 67 according to standard EN 60 529, as amended.

The sensor is designed 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 product meets the parameters in accordance with EN 45545-2, as amended, Fire protection of railway vehicles - Part 2: Requirements for the fire behavior of materials and components. The materials also meet the requirements of the NFPA 130 fire safety standard, as amended.

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

- possibility of enclosing two sensors

- possibility of 3-wire or 4-wire connection

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