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Reference GKNS510AR

KNS 510A sensor type

4 to 20 mA output signal

Standard measuring ranges ** -30 ° C to 60 ° C

0 ° C to 35 ° C

0 ° C to 100 ° C

0 ° C to 150 ° C

Supply voltage U 12 to 30 VDC

Nominal supply voltage Un 12 VDC

Output signal when the sensor is interrupted> 24 mA

Output signal when the sensor is short-circuited <3,5 mA

Measurement error <0,6% for range with scale, min. 0,5 ° C

Ambient temperature -40 ° C to 80 ° C

LEXAN head material (conforms to EN 45545-2)

Rod material

DIN 1.4301 stainless steel

Shank diameter / length

6 ± 0,1 mm / 50 mm

Degree of protection IP 65 dle EN 60529

Insulation resistance> 200 M Ω at 500 VDC 25 ° C ± 3 ° C, humidity <80%

Response time τ0,5 ≤ 9 s (in ambient air at 1 ms-1)

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.

**) see modifications


Shock and vibration tests

category 1, class B according to EN 61373

Electromagnetic compatibility according to EN 50121-3-2

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

Fire resistance

according to EN 45545 (possible according to NFPA 130)

Product features TEMPERATURE SENSOR WITH 4 to 20 mA OUTPUT KNS ​​510A

The KNS 510A temperature sensor is designed to measure the temperature of the outside air. In the application segment of railway vehicles, it is used for example to measure the air temperature in locomotive engine rooms, it can be part of the temperature control system in passenger compartments or is used for indicate the temperature in the engine room as part of the fire protection system.

The temperature sensor consists of a plastic head, where a converter of the resistance signal of the temperature sensor into a current signal of 4 to 20 mA and a metal rod are placed. All metal parts are made of DIN 1.4301 stainless steel. The length of the rod is 50 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 sensor can be used for any control system compatible with the 4 to 20 mA output signal. The standard temperature ranges are shown in the technical parameters table, while the maximum temperature around the connection head is 80 ° C and should not be exceeded even for a short time. The sensor conforms to the degree of protection IP 65 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

- Electromagnetic compatibility according to EN 50121-3-2, as amended

- 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. May be supplied with materials that meet NFPA 130 fire safety standard, as amended.

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