thermostats
3MS1 QPL Series
Military. QPL. Each unit 100% inspected. Hermetically sealed. Tight tolerances & differentials. SPST contacts. Mounting brackets, terminals.
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Overview
The 3MS1 QPL Series consists of a single pole, single throw switch activated by a snap-action bimetal disc. Temperature calibrations are pre-set at the factory, and each unit is 100% thermally and mechanically inspected. It is available to open or close on temperature rise. The case is laser welded to form a hermetically sealed steel housing with a glass-to-metal seal at the terminal junction. It is qualified to MIL-S-24236 and is QPL listed for military applications.
Features
- Hermetically sealed
- Tight tolerances
- Tight differentials
- Hi-Rel
- QPL listed
Potential Applications
- Military
Specifications
Technical Specifications
- Acceleration Range/Limits
- MIL-STD-202, Method 212; 20 G
- Thermostat Environmental Exposure Range
- -65 °C to 260 °C [-85 °F to 500 °F]
- Thermostat Contact Resistance
- MIL-STD-202, Method 307; 0.050 Ohm max.
- Insulation Resistance
- MIL-STD-202, Method 302; 500 MOhm
- Dielectric Strength
- MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
Features
- Vibration
- MIL-STD-202, Method 204; 20 G
- Thermal Shock
- MIL-STD-202, Method 107; Cond. B
- Shock
- MIL-STD-202, Method 213; 100 G
- Seal Type
- MIL-STD-202, Method 112; Cond. C
- Salt Spray
- MIL-STD-202, Method 101; Cond. B
Operating Characteristics
- Operating Temperature
- -46 °C to 191 °C [-50 °F to 375 °F]
- Humidity
- MIL-STD-202, Method 106
Standards & Certifications
- Agency Approvals and Standards
- MIL-PRF-24236/1 and QPL
Others
- Industry
- Aerospace
Technical Specifications
- Acceleration Range/Limits
- MIL-STD-202, Method 212; 20 G
- Thermostat Environmental Exposure Range
- -65 °C to 260 °C [-85 °F to 500 °F]
- Thermostat Contact Resistance
- MIL-STD-202, Method 307; 0.050 Ohm max.
- Insulation Resistance
- MIL-STD-202, Method 302; 500 MOhm
- Dielectric Strength
- MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
Features
- Vibration
- MIL-STD-202, Method 204; 20 G
- Thermal Shock
- MIL-STD-202, Method 107; Cond. B
- Shock
- MIL-STD-202, Method 213; 100 G
- Seal Type
- MIL-STD-202, Method 112; Cond. C
- Salt Spray
- MIL-STD-202, Method 101; Cond. B
Operating Characteristics
- Operating Temperature
- -46 °C to 191 °C [-50 °F to 375 °F]
- Humidity
- MIL-STD-202, Method 106
Standards & Certifications
- Agency Approvals and Standards
- MIL-PRF-24236/1 and QPL
Others
- Industry
- Aerospace
- Acceleration Range/Limits : MIL-STD-202, Method 212; 20 G
- Vibration : MIL-STD-202, Method 204; 20 G
- Thermostat Environmental Exposure Range : -65 °C to 260 °C [-85 °F to 500 °F]
- Thermostat Contact Resistance : MIL-STD-202, Method 307; 0.050 Ohm max.
- Thermal Shock : MIL-STD-202, Method 107; Cond. B
- Shock : MIL-STD-202, Method 213; 100 G
- Seal Type : MIL-STD-202, Method 112; Cond. C
- Salt Spray : MIL-STD-202, Method 101; Cond. B
- Operating Temperature : -46 °C to 191 °C [-50 °F to 375 °F]
- Insulation Resistance : MIL-STD-202, Method 302; 500 MOhm
- Industry : Aerospace
- Humidity : MIL-STD-202, Method 106
- Dielectric Strength : MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
- Agency Approvals and Standards : MIL-PRF-24236/1 and QPL
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Data Sheet
Name
Description
File Size
Date
Size
Precision and High Reliability Thermostats
application/pdf 5.15 MB
8/21/2025
5.15 MB
Manuals and Guides
Name
Description
File Size
Date
Size
Sensors and Switches Product Range Guide for Aerospace and Defense
application/pdf 19.52 MB
11/6/2025
19.52 MB
Soldering Wire Leads on Precision Hermetic Thermostats
application/pdf 216.61 KB
8/13/2025
216.61 KB
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
application/pdf 33.28 KB
8/13/2025
33.28 KB
Brochure
Name
Description
File Size
Date
Size
Brochure about Honeywell's Sensor & Switch Solutions for HVAC.
application/pdf 11.68 MB
2/16/2026
11.68 MB
Sensing Solutions For Industrial Applications Brochure
application/pdf 16.68 MB
1/22/2026
16.68 MB
Technical Note
Name
Description
File Size
Date
Size
Industrial Product Line Card --
application/pdf 2.24 MB
8/14/2025
2.24 MB
Application Note
Name
Description
File Size
Date
Size
Agricultural Vehicles Application Note
application/pdf 1.11 MB
8/20/2025
1.11 MB
eBook
Name
Description
File Size
Date
Size
Space Solutions With Down-to-Earth Applications
application/pdf 15.2 MB
8/13/2025
15.2 MB
Duty to excel with mission-critical solutions
application/pdf 15.17 MB
8/21/2025
15.17 MB
Name
Description
File Size
Date
Size
Brochure about Honeywell's Sensor & Switch Solutions for HVAC.
application/pdf 11.68 MB
2/16/2026
11.68 MB
Space Solutions With Down-to-Earth Applications
application/pdf 15.2 MB
8/13/2025
15.2 MB
Duty to excel with mission-critical solutions
application/pdf 15.17 MB
8/21/2025
15.17 MB
Sensing Solutions For Industrial Applications Brochure
application/pdf 16.68 MB
1/22/2026
16.68 MB
Sensors and Switches Product Range Guide for Aerospace and Defense
application/pdf 19.52 MB
11/6/2025
19.52 MB
Industrial Product Line Card --
application/pdf 2.24 MB
8/14/2025
2.24 MB
Soldering Wire Leads on Precision Hermetic Thermostats
application/pdf 216.61 KB
8/13/2025
216.61 KB
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
application/pdf 33.28 KB
8/13/2025
33.28 KB
Agricultural Vehicles Application Note
application/pdf 1.11 MB
8/20/2025
1.11 MB
Precision and High Reliability Thermostats
application/pdf 5.15 MB
8/21/2025
5.15 MB
Name
Description
File Size
Date
Size
Precision and High Reliability Thermostats
5.15 MB
8/21/2025
Sensors and Switches Product Range Guide for Aerospace and Defense
19.52 MB
11/6/2025
Soldering Wire Leads on Precision Hermetic Thermostats
216.61 KB
8/13/2025
Technical Tip Bulletin - Precision Thermostat | Gold Contact Selection Guide
33.28 KB
8/13/2025
Brochure about Honeywell's Sensor & Switch Solutions for HVAC.
11.68 MB
2/16/2026
Sensing Solutions For Industrial Applications Brochure
16.68 MB
1/22/2026
Product Number
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3MS1 00100100
T117 BNA OOR O06008 C04004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00100100
T117 BNA OOR O06008 C04004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00100130
T117 BNA OOR O11505 C08006
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00100130
T117 BNA OOR O11505 C08006
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00103004
T117 BNA OOR O08005 C07005
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00103004
T117 BNA OOR O08005 C07005
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00103043
T117 BNA COR O15005 C16004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00103043
T117 BNA COR O15005 C16004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00103048
T117 BNA COR O17505 C20504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00103048
T117 BNA COR O17505 C20504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110220
T117 B209 OOR O05005 C04004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110220
T117 B209 OOR O05005 C04004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110285
T117 B209 OOR O12805 C11204
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110285
T117 B209 OOR O12805 C11204
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110304
T117 B209 OOR O15005 C12004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110304
T117 B209 OOR O15005 C12004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110306
T117 B209 OOR O15005 C14004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110306
T117 B209 OOR O15005 C14004
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110325
T117 B209 OOR O16005 C14504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
3MS1 00110325
T117 B209 OOR O16005 C14504
https://s7d1.scene7.com/is/image/Honeywell65/sps-siot-honeywell-sensing-thermostats-3ms1-qpl-series-ciid-161702
