KTU21-XG | Kele | Temperature Sensors & Transmitters
2.252K Universal Thermistor, Greenfield Fitting (Not Installed)
Brand:Kele
MPN:KTU21-XG
SKU:KTU21-XG
product specifications
Accessory
T81U-XR, T85U-XR, T91U-XR, OSAB, F-1000-331, UR
Enclosure Rating
NEMA 3R, IP22
Feature
Greenfield Fitting
Application
Air Handling Unit, Duct Temperature
Housing Material
Poly
Probe Length
4.875 in
Sensor Element
2250 Ohm Thermistor
Type
Thermistor
Output Signal
Resistance
product series specifications
Accuracy:
Thermistor: ±0.50°F (±0.28°C)
RTD: ±0.60°F (±0.33°C)
Sensor Type:
Thermistor: 2.252 kO, 3 kO, 10 kO Type II, III & III w/11K shunt, 20 kO, 100 kO
RTD:
Type 71, 81: 100O Pt 385 Curve
Type 85: 1000O Pt 385 Curve
Type 91: 1000O Pt 375 Curve
Temperature Range:
Thermistor/RTD: -40° to 221°F (-40° to 105°C)
Temperature Coefficient:
Thermistor: Negative temperature coefficient
RTD: Positive temperature coefficient
Temperature Stability:
Thermistor: 0.24°F (0.13°C) over five years
RTD: Max 0.04% after 1k hours @ 500°C
Heat Dissipation: 2.7 mW/°C (power needed to raise the temperature 1°C)
Enclosure Rating: NEMA 3R, UL 94V-0, plenum-rated plastic, IP22, UV protected with snap-off cover
Mounting: Directly to duct, immersion well, or OSA wall mount with appropriate bracket
Wiring Terminations: 8', 24 AWG gray wire leads, type 71 & 81 sensors have 18" leads
Probe: Seamless 304 stainless steel tube, 1 1/4" OD, 4.87" long
Weight: 0.25 lb (0.11 Kg) w/o options
Approvals: CE
Warranty: 3 years
product series features
- Three-year warranty
- Flame retardant, plenum rated
- Adaptable with many mounting options
- 304 stainless steel waterproof probes
- Paintable plastic
- NEMA 3R, IP22
more information & related documents
Series Description
The Kele KTU* Series Universal-Mount Thermistor and RTD Sensors provide remote temperature sensing in multiple applications such as duct, OSA, and immersion installations for building automation systems. The active sensing element is a highly stable thermistor material or platinum RTD. The sensing element is sealed with a thermally conductive compound in a 4-7/8 in (12.38 cm) long stainless steel probe and is attached to a 2.5 in (6.35 cm) square enclosure. The tabs on the enclosure provide mounting ears for direct duct mounting and are easily removable if they are not needed. This multipurpose enclosure minimizes the number of stock parts required to handle multiple applications.
Kele Description
TEMP SENSOR, DUCT, 2.252K, 4.875" PROBE, POLY ENCL NEMA 3R, NO OUTPUT
Manufacturer
Kele
