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ST-L Thermistor & RTD Sensor
Brand: KeleThe Precon ST-L* Series Thermistor and RTD Ring Lug Sensors provide precision equipment temperature sensing for building automation systems.
The active sensing element is made of a highly stable, precision thermistor material or platinum RTD.
The ring lug design allows the sensor to be mounted to a bolt or stud to monitor equipment temperature.
A common use is to monitor motor winding temperature by mounting to the motor housing. It comes in sizes to accommodate 1/4", 5/16" and 3/8" studs or bolts.
Features- Lifetime warranty
- Wide selection of thermistor and RTD curves
- Ring lug mounting for equipment monitoring
- Three stud sizes available
- Ultra high accuracy optional
1 - 12 of 1,440 Part Numbers
ST-L11K-25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Standard
- Electrical Connection - Standard
ST-L11K-25-QD1/4
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Nylon Insulated Quick Disconnect 1/4"
- Electrical Connection - Standard
ST-L11K-25-QD1/4-X25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Nylon Insulated Quick Disconnect 1/4"
- Electrical Connection - 25' (7.6 meters) Lead Length 24 AWG
ST-L11K-25-QD1/4-XC25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Nylon Insulated Quick Disconnect 1/4"
- Electrical Connection - 25' (7.6 meters) Lead Length 24 AWG Jacketed Cable
ST-L11K-25-QD1/4-XCP25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Nylon Insulated Quick Disconnect 1/4"
- Electrical Connection - 25' (7.6 meters) Non-Shielded 22 AWG Plenum Cable
ST-L11K-25-X25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Standard
- Electrical Connection - 25' (7.6 meters) Lead Length 24 AWG
ST-L11K-25-XC25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Standard
- Electrical Connection - 25' (7.6 meters) Lead Length 24 AWG Jacketed Cable
ST-L11K-25-XCP25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Standard Certificates
- Connection - Standard
- Electrical Connection - 25' (7.6 meters) Non-Shielded 22 AWG Plenum Cable
ST-L11K-25-XN
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - Certificate of Conformance
- Connection - Standard
- Electrical Connection - Standard
ST-L11K-25-XN1
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - NIST Certificate, One Reference Point 0° C (32° F)
- Connection - Standard
- Electrical Connection - Standard
ST-L11K-25-XN1-QD1/4
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - NIST Certificate, One Reference Point 0° C (32° F)
- Connection - Nylon Insulated Quick Disconnect 1/4"
- Electrical Connection - Standard
ST-L11K-25-XN1-QD1/4-X25
- Model - 10,000 Ohms Lug Thermistor at 25° C (77° F), Type III with 11K Shunt (Gray Leads)
- Size - 1/4" Stud Size
- Certificates - NIST Certificate, One Reference Point 0° C (32° F)
- Connection - Nylon Insulated Quick Disconnect 1/4"
- Electrical Connection - 25' (7.6 meters) Lead Length 24 AWG
1 - 12 of 1,440 Part Numbers
Specifications
Brand
Accuracy
- 0.03° C (± 0.054° F) - RTD Typical 71
- 0.15° C (± 0.27° F) - RTD Typical 81, 85
- 0.2° C (± 0.36° F) - Thermistor
- 0.30° C (± 0.54° F) - RTD Typical 91
- 0.40° C (± 0.72° F) - RTD Typical 63
Applications
- Building Automation Systems
Approvals & Certifications
- CE
Dissipation
- 2.7 mW/°C, Power Needed to Raise the Temperature by 1° C (1.8° F)
Electrical - Free Leads
- 18” (45 cm) Free Leads - for Typical 81 & 71
Electrical Connectors
- 24 AWG, 8 feet (2.44 metres) Pre-Stripped Pigtails
- 25 feet (7.6 metres) Non-shielded 22 AWG Plenum Cable
Materials of Construction
- RTD: Platinum
Mounting
- Directly to Stud
- Ring Lug
NACE & NIST
- NIST
Resistance
- 2.252 to 100 kiloohms
RTD Type
- Ni1000 - Typical 63
- Pt375 Curve, 1,000 ohms - Typical 91
- Pt385 Curve, 100 ohms - Typical 71, 81, 1,000 ohms - Typical 85
Sensor, Probe Type
- RTD
- Thermistor
Size
- 1/4” to 3/8” (6.35 to 9.525 mm) - Studs or Bolts
Stability
- ± 0.13° C (± 0.24° F) over 5-Years - Thermistor
Temperature Coefficient
- Negative Temperature Coefficient - Thermistor
- Positive Temperature Coefficient - RTD
Temperature Range
- -40° to 105° C (-40° to 221° F) - Thermistor/RTD