KTD21-XW | Kele | Temperature Sensors & Transmitters

Duct Temperature Sensor, 2.252K All-purpose thermistor, Weather Resistant Housing, 9" Probe

Brand:Kele

MPN:KTD21-XW

SKU:KTD21-XW

List Price:

$69.69

Today's Price:

$36.24

product specifications

Accessory

T81U-XR,T85U-XR,UR,F-100-331

Application

Duct Temperature,Air Handling Unit

Enclosure Rating

NEMA 3R

Housing

Weather Proof

Housing Material

Metallic

Output Signal

Resistance

Probe Length

4.875 in

Sensor Element

2250 Ohm Thermistor

Type

Thermistor

product series specifications

Accuracy:

Thermistor: ±0°F (0.28°0.5C)

RTD: ±0.60°F (0.33°C)

Temperature Stability:

Thermistor: 0.24°F (0.13°C) over five years

RTD: Max 0.04% after 1k hours @ 500 °F

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°F (-40° to 105°C)

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, 2.252K, 4.875", METALLIC ENCL, NO OUTPUT

Manufacturer

Kele