Type KY2, KY3 Specifications

Electrical KY2

Temperature

“Zero Power”

°F (°C)

Resistance

140 (60)

640W NOM

179.6 (82)

250W ± 8%

206.6 (97)

170W ± 8%

221 (105)

170W ± 8%

246.2 (119)

112W ± 8%

Electrical KY3

Temperature

“Power On”*

°F (°C)

Resistance

140 (60)

119W ± 20%

185 (85)

73.5W ± 12%

206.6 (97)

73.5W ± 12%

246.2 (119)

38.0W ± 8%

Options

• Other resistance-temperature characteristics

• Alternative housings

* “POWER ON” resistance values measured with the

thermistor assembled in a brass probe body. The probe

is immersed in circulating oil (light engine type) up to

the bottom of the hexagonal head and self-heated

using the following circuit:

R1, R2 = 58.8W approximate (matched within 0.1% at

room temperature)

R3 : Decade resistance box adjusted to give

null reading on meter M1

Dimensions

R1

R2

R3

M1

PROBE

Center

Zero Meter

± 100mA dc FSD

10.0 ± 0.025 VDC

5/8” x 18 TPI UNF 2A

27.5 ± 0.4

Ø 8.55 ±

0.1

7.35 ± 0.25

38 Nominal

6.35 ± 0.1

18 A/F

AAS-920-392A-04/2014

www.amphenol-sensors.com

© 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.

Other company names and product names used in this document are the registered trademarks or

trademarks of their respective owners.

Amphenol

Advanced Sensors