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KTB Thermistor & RTD Sensor

Brand: Kele

The Kele KTB Series Button Style Flush-Mount Thermistor and RTD Sensors provide room temperature sensing for building automation systems. 

The active sensing element is made of a highly stable, thermistor material or platinum RTD. 

This design provides moisture/vapor resistance and is bonded to either brass, steel or aluminum button style housing easily mountable into any wall. 

This sensor is intended for interior use only.
Features
  • ±0.50° F (±0.2° C) thermistor accuracy
  • ±0.60° F (±0.33° C) RTD accuracy
  • Ultra high accuracy available
  • Wide selection of thermistor and RTD curves
  • Optional brass, steel, or aluminum metal button style housing
  • Small, nearly invisible footprint

1 - 12 of 40 Part Numbers
KTB11K
KTB11K
  • Model - 10,000 Ohms Button Style Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
  • Housing - Standard
KTB11K-A
KTB11K-A
  • Model - 10,000 Ohms Button Style Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
  • Housing - Aluminium Housing
KTB11K-B
KTB11K-B
  • Model - 10,000 Ohms Button Style Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
  • Housing - Brass Housing
KTB11K-S
KTB11K-S
  • Model - 10,000 Ohms Button Style Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
  • Housing - Steel Housing
KTB21
KTB21
  • Model - 2,252 Ohms Button Style Thermistor at 25° C (77° F), Type II (Green Leads)
  • Housing - Standard
KTB21-A
KTB21-A
  • Model - 2,252 Ohms Button Style Thermistor at 25° C (77° F), Type II (Green Leads)
  • Housing - Aluminium Housing
KTB21-B
KTB21-B
  • Model - 2,252 Ohms Button Style Thermistor at 25° C (77° F), Type II (Green Leads)
  • Housing - Brass Housing
KTB21-S
KTB21-S
  • Model - 2,252 Ohms Button Style Thermistor at 25° C (77° F), Type II (Green Leads)
  • Housing - Steel Housing
KTB22
KTB22
  • Model - 3,000 Ohms Button Style Thermistor at 25° C (77° F), Type II (Blue Leads)
  • Housing - Standard
KTB22-A
KTB22-A
  • Model - 3,000 Ohms Button Style Thermistor at 25° C (77° F), Type II (Blue Leads)
  • Housing - Aluminium Housing
KTB22-B
KTB22-B
  • Model - 3,000 Ohms Button Style Thermistor at 25° C (77° F), Type II (Blue Leads)
  • Housing - Brass Housing
KTB22-S
KTB22-S
  • Model - 3,000 Ohms Button Style Thermistor at 25° C (77° F), Type II (Blue Leads)
  • Housing - Steel Housing
1 - 12 of 40 Part Numbers

Specifications

Brand

Accuracy

  • ± 0.28° C (± 0.50° F) - Thermistor
  • ± 0.33° C (± 0.60° F) - RTD

Approvals & Certifications

  • CE

Dissipation

  • 2.7 mW/°C (Power Needed to Raise the Temperature 1° C (1.8° F)) - Heat Dissipation

Electrical - Free Leads

  • 18” (45 cm) Free Leads - Typical 81

Electrical Connectors

  • 24 AWG

Enclosure, Body Material

  • 304 Stainless Steel
  • Aluminum
  • Button Style Brass

Materials of Construction

  • RTD: Platinum

Mounting

  • Direct Wall

Resistance

  • 2.252 to 100 kiloohms - Thermistor

RTD Type

  • Pt375 Curve, 1,000 ohms - Typical 91
  • Pt385 Curve, 100 ohms - Typical 81, 1,000 ohms - Typical 85

Sensor, Probe Type

  • RTD
  • Thermistor

Stability

  • 0.13° C (0.24° F) over 5-Years - Thermistor

Temperature Range

  • -40° to 105° C (-40° to 221° F)

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