Print 
Email 
KTD81-X25 | Kele | Temperature Sensors & Transmitters
Duct Temperature Sensor, 100 RTD 385 All-purpose thermistor, 25' (7.6m) lead length 24 AWG
Brand:Kele
MPN:KTD81-X25
SKU:KTD81-X25
product specifications
Accessory
T81U-XR, T85U-XR, UR, F-100-331
Feature
Knockouts
Application
Duct Temperature, Air Handling Unit
Housing Material
Metallic
Housing Rating
NEMA 1
Output
Resistance
Probe Length
4.875 in
Sensor Element
100 Ohm Platinum RTD 385
Type
RTD
product series specifications
- Accuracy:
- Thermistor:
- ±0.50‚Ñâ (0.28‚ÑÉ)
- RTD:
- ±0.60‚Ñâ (0.33‚ÑÉ)
- Temperature Stability:
- Thermistor:
- 0.24‚Ñâ (0.13‚ÑÉ) over five years
- RTD:
- Max 0.04% after 1k hours @ 500 ‚ÑÉ
- Heat Dissipation:
- 2.7 mW/°C (power needed to raise the temperature 1°C)
- Sensor Type:
- Thermistor:
- 2.252 kΩ, 3 kΩ, 10 kΩ, Type II, III & III w/11K shunt, 20 kΩ, 100 kΩ
- RTD:
- Type 71, 81:
- 100Ω Pt 385 Curve
- Type 85:
- 1000Ω Pt 385 Curve
- Type 91:
- 1000Ω Pt 375 Curve
- Temperature Coefficient:
- Thermistor:
- Negative temperature coefficient
- RTD:
- Positive temperature coefficient
- Temperature Range:
- Thermistor/RTD:
- -40° to 221‚Ñâ (-40° to 105‚ÑÉ)
- Enclosure Rating:
- Depends on model
- Mounting:
- Directly to duct, wall or single gang box
- Wiring Terminations:
- 8' (2.4m), 24 AWG gray wire leads, type 71 & 81 sensors have 18" (0.45m) leads
- Probe:
- Seamless 304 stainless steel tube, 1/4" OD
- Weight:
- KTD:
- 0.72 lb (0.33 Kg)
- KTDNB:
- 0.2 lb (0.09 Kg)
- Approvals:
- CE
- Warranty:
- 3 years
product series features
- Economical
- Metal enclosures with stainless steel probes
- Three-year warranty
- Thermistor or RTD sensor selections
more information & related documents
Series Description
The Kele KTD* Duct Thermistor and RTD Sensors are designed to be cost effective with accuracies of ±0.5 degrees F (±0.28 degrees C). Each uses metal enclosures and is constructed for easy installation with any building automation system (BAS). The thermistor is made of a very stable, pre-aged material that offers long-life reliability for HVAC control. The platinum RTD comes in 100 Ohm and 1000 Ohm versions. All sensors come with a three-year warranty.
Kele Description
TEMP SENSOR, DUCT, 100 RTD 385, 4.875", METALLIC ENCL, NO OUTPUT
Manufacturer
Kele
