ST-L* Series



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ST-L* Series

Precon Ring Lug Thermistor and RTD Sensors ST-L* Series

Precon Ring Lug Thermistor and RTD Sensors

 

The 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.


Products
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QtyModelDescriptionIn StockList PriceInternet Price
ST-L11K-25 LUG STYLE 10K 3 W/11K SHUNT THERMISTOR 1/4 MOUNTINFO77.0043.12
ST-L21-25 LUG STYLE 2252 OHM TYPE 2 THERMISTOR 1/4 MOUNTINFO70.0039.20
ST-L22-25 LUG STYLE 3000 OHM TYPE 2 THERMISTOR 1/4 MOUNTINFO70.0039.20
ST-L22-25-QD1/4 LUG STYLE 3K OHM THMS 1/4 MOUNT QUICK DISCONNECTINFO71.0039.76
ST-L22-31 LUG STYLE 3000 OHM TYPE 2 THERMISTOR 5/16 MOUNTINFO70.0039.20
ST-L22-31-QD1/4 LUG STYLE 3K OHM THMS 5/16 MOUNT QUICK DISCONNECTINFO71.0039.76
ST-L22-38 LUG STYLE 3000 OHM TYPE 2 THERMISTOR 3/8 MOUNTINFO70.0039.20
ST-L22-38-QD1/4 LUG STYLE 3K OHM THMS 3/8 MOUNT QUICK DISCONNECTINFO71.0039.76
ST-L24-25 LUG STYLE 10K TYPE 2 THERMISTOR 1/4 MOUNTINFO70.0039.20
ST-L24-25-QD1/4 LUG STYLE 10K TYPE 2 THMS 1/4 MNT QUICK DISCONNECTINFO71.0039.76
ST-L24-25-X25 LUG STYLE 10K TYPE 2 THMS 1/4 MOUNT 25 FT LEADINFO79.0044.24
ST-L24-25-XC25 LUG STYLE 10K TYPE 2 THMS 1/4 MOUNT 25 FT JACKETEDINFO106.0059.36
ST-L24-25-XCP25 LUG STYLE 10K TYP 2 THMS 1/4 MNT 25 FT NONSHLD PLNINFO100.0056.00
ST-L24-25-XN1 LUG STYLE 10K TYPE 2 THMS 1/4 MOUNT NIST 1 PTINFO103.0057.68
ST-L24-31 LUG STYLE 10K TYPE 2 THERMISTOR 5/16 MOUNTINFO70.0039.20
ST-L24-31-XC25 LUG STYLE 10K TYPE 2 THMS 5/16 MNT 25 FT JACKETEDINFO106.0059.36
ST-L24-31-XCP25 LUG STYL 10K TYP 2 THMS 5/16 MNT 25 FT NONSHLD PLNINFO100.0056.00
ST-L24-38 LUG STYLE 10K TYPE 2 THERMISTOR 3/8 MOUNTINFO70.0039.20
ST-L24-38-XC25 LUG STYLE 10K TYPE 2 THMS 3/8 MOUNT 25 FT JACKETEDINFO106.0059.36
ST-L24-38-XCP25 LUG STYLE 10K TYP 2 THMS 3/8 MNT 25 FT NONSHLD PLNINFO100.0056.00
ST-L27-25 LUG STYLE 100K TYPE 3 THERMISTOR 1/4 MOUNTINFO70.0039.20
ST-L3-25 LUG STYLE 10K OHM TYPE 3 THERMISTOR 1/4 MOUNTINFO70.0039.20
ST-L3-25-QD1/4 LUG STYLE 10K TYPE 3 THMS 1/4 MNT QUICK DISCONNECTINFO71.0039.76
ST-L3-25-X25 LUG STYLE 10K TYPE 3 THMS 1/4 MOUNT 25 FT LEADINFO79.0044.24
ST-L3-25-XC25 LUG STYLE 10K TYPE 3 THMS 1/4 MOUNT 25 FT JACKETEDINFO106.0059.36
ST-L3-25-XCP25 LUG STYLE 10K TYP 3 THMS 1/4 MNT 25 FT NONSHLD PLNINFO100.0056.00
ST-L3-31-X25 LUG STYLE 10K TYPE 3 THMS 5/16 MOUNT 25 FT LEADINFO79.0044.24
ST-L3-31-XC25 LUG STYLE 10K TYPE 3 THMS 5/16 MNT 25 FT JACKETEDINFO106.0059.36
ST-L3-31-XCP25 LUG STYL 10K TYP 3 THMS 5/16 MNT 25 FT NONSHLD PLNINFO100.0056.00
ST-L3-38 LUG STYLE 10K OHM TYPE 3 THERMISTOR 3/8 MOUNTINFO70.0039.20
ST-L3-38-XC25 LUG STYLE 10K TYPE 3 THMS 3/8 MOUNT 25 FT JACKETEDINFO106.0059.36
ST-L3-38-XCP25 LUG STYLE 10K TYP 3 THMS 3/8 MNT 25 FT NONSHLD PLNINFO100.0056.00
ST-L42-25 LUG STYLE 20K TYPE 4 THERMISTOR 1/4 MOUNTINFO70.0039.20
ST-L42-25-X25 LUG STYLE 20K OHM THMS 1/4 MOUNT 25 FT LEADINFO79.0044.24
ST-L63-25 LUG STYLE 1000 OHM NICKEL RTD 1/4 MOUNTINFO107.0059.92
ST-L63-25-X25 LUG STYLE 1000 OHM NICKEL 1/4 MOUNT 25 FT LEADINFO116.0064.96
ST-L63-38-XC25 LUG STYLE 1000 OHM NICKEL 3/8 MOUNT 25 FT JACKETEDINFO144.0080.64
ST-L71-25 LUG STYLE 100 OHM ULTRA ACCURATE RTD 1/4 MOUNTINFO243.00136.08
ST-L71-25-XN LUG STYLE 100 OHM ULTRA ACC 1/4 MOUNT CERT OF COMFINFO250.00140.00
ST-L81-25 LUG STYLE 100 OHM TYPE 81 RTD 1/4 MOUNTINFO82.0045.92
ST-L81-25-XC25 LUG STYLE 100 OHM RTD 1/4 MOUNT 25 FT JACKETEDINFO118.0066.08
ST-L85-25-XC25 LUG STYLE 1000 OHM 385 RTD 1/4 MOUNT 25 FT JACKETDINFO118.0066.08
ST-L85-31 LUG STYLE 1000 OHM TYPE 85 RTD 5/16 MOUNTINFO82.0045.92
ST-L85-38 LUG STYLE 1000 OHM TYPE 85 RTD 3/8 MOUNTINFO82.0045.92
ST-L85-38-XN1 LUG STYLE 1000 OHM 385 RTD 3/8 MOUNT NIST 1 PTINFO110.0061.60
ST-L91-25 LUG STYLE 1000 OHM TYPE 91 RTD 1/4 MOUNTINFO82.0045.92

Accessories

No accessories found
Features
  • Lifetime warranty
  • Wide selection of thermistor and RTD curves
  • Ring lug mounting for equipment monitoring
  • Three stud sizes available
  • Ultra high accuracy optional
Specifications

Accuracy:

Thermistor: ±0.36℉ (0.2℃)

RTD:

Type 63: ±0.72℉ (0.40℃)

Type 71: +/-0.0774°F (0.043°C)

Type 81, 85: ±0.27℉ (0.15℃)

Type 91: ±0.54℉ (0.30℃)

Sensor Type:

Thermistor: 2.252 kΩ, 3 kΩ, 10 kΩ Type II, III & III w/11K shunt, 20 kΩ, 100 kΩ

RTD:

Type 63: 1000Ω Nickel

Type 71, 81: 100Ω Pt 385 Curve

Type 85: 1000Ω Pt 385 Curve

Type 91: 1000Ω Pt 375 Curve

Temperature Range:

Thermistor/RTD: -40° to 221℉ (-40° to 105℃)

Temperature Coefficient:

Thermistor: Negative temperature coefficient

RTD: Positive temperature coefficient

Temperature Stability:

Thermistor: 0.24℉ (0.13℃) over five years

RTD: Max 0.04% after 1k hours @ 500 ℃ 

Heat Dissipation: 2.7 mW/℃ (power needed to raise the temperature by 1℃)

Mounting: Directly to stud or bolt

Wiring Terminations: 24 AWG, UL low voltage to 105°C Connections 8' (2.4m) of 24 AWG prestripped pigtails, type 71 &   81 sensors have 18" leads

Weight: 0.1 lb (0.05 Kg) w/o options w/o options

Approvals: CE

Warranty: Lifetime

Certifications






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