Thermostats
line Guide
mounting brackets and terminal options — while our precision
line includes both hermetic and non-hermetic devices. And
each thermostat’s design is configured from a base unit, and
can be customized for temperature tolerance and mechanical
configurations, meeting any of your needs for accuracy and
exactitude. It makes sense to trust industry-leading engineering
and innovation.
Precision engineering. Commercial sense. From the exacting
needs of high-end industrial and aerospace applications to
commercial safety and office equipment usage, Honeywell
Sensing and Control (S&C) thermostat solutions are the
recognized, respected leader. Both our commercial and precision
snap-action thermostats include automatic and manual reset
options, phenolic or ceramic housings and a wide variety of
FEATURES
2450Cm Series.
2450hR Series.
CommERCiAl ThERmoSTATS
2450A Series.
Features: Cost effective • Rivet sleeve
construction • Wide variety of mounting
brackets and terminals
Features: Cost effective • Rivet sleeve
construction • Factory calibrated • Wide
variety of mounting brackets and terminals
Features: Cost effective • Gold alloy
contacts • Epoxy-sealed cap and
terminals • Wide variety of terminals
• Only a stepped aluminum cap - 15’
spacing, 1” collector for 30’ spacing, and
a 1.5” collector for 50’ spacing. Collector
brackets available per UL
Benefits: Small size allows enhanced
response to temperature changes.
Potential for use in high current HVAC,
appliance, hot water heater and office
automation applications.
Benefits: Small size allows enhanced
response to temperature changes. Factory
calibrated to customer’s specs. 4-posted
“H” construction for application mounting
bracket. Potential for use in HVAC, major
appliances, automotive, heat and smoke
detectors and office copy machines.
Benefits: Gold alloy contacts for low
voltage fire alarm, smoke detector and
potential security device applications.
Small size allows enhanced response to
temperature changes. Epoxy sealed for
extended life. Available with or without
heat collectors. Potential for use in
office copy machines, heat and smoke
detectors, HVAC equipment, computers,
aircraft/aerospace, radar equipment,
medical equipment, and electronic control
systems.
2450CmG Series.
Features: Cost effective • Gold alloy
contacts • Rivet sleeve construction
• Wide variety of mounting brackets and
terminals
2450hRG Series.
Features: Cost effective • Gold alloy
contacts • Rivet sleeve construction
• Factory calibrated • Wide variety of
mounting brackets and terminals
Benefits: Small size allows enhanced
response to temperature changes. Gold
alloy contacts for potential use in low
voltage HVAC, appliances, hot water
heater and office automation applications.
Benefits: Small product size allows
enhanced response to temperature
changes. Factory calibrated to customer’s
specification. 4-posted “H” construction
for application mounting bracket.
Gold alloy contacts for low voltage HVAC,
major appliance, automotive, heat/smoke
detectors and copy machine potential
applications.
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Commercial
Thermostats
2450RC Series
2450RCG Series
2450RG Series
Use
high current
low voltage
low voltage
Reset type
automatic
automatic
automatic
Housing material
Functional property
Amperage
ceramic
ceramic
phenolic
open or close on rise
15 A/10 A
open or close on rise
0.5 A
open or close on rise
0.5 A
Operating temperature range
0 °C to 260 °C [32 °F to 500 °F]
0 °C to 260 °C [32 °F to 500 °F]
-20 °C to 287 °C [0 °F to 550 °F]
WE-1 gold alloy cross point
UL, CSA, VDE
0 °C to 150 °C [32 °F to 302 °F]
-18 °C to 177 °C [0 °F to 350 °F]
WE-1 gold alloy cross point
UL, CSA
Environmental exposure range -20 °C to 287 °C [0 °F to 550 °F]
Contacts
silver/nickel alloy
UL, CSA, VDE
Approvals
Commercial
Thermostats
2455R Series
2455RA Series
2455RVB Series
Use
high current
heat detection
high current
Reset type
automatic
automatic
automatic
Housing material
Functional property
Amperage
phenolic
phenolic, epoxy seal cap and terminals
close on rise
ceramic, epoxy overmold
open or close on rise
15 A/10 A
open or close on rise
15 A/10 A
3 A
Operating temperature range
0 °C to 150 °C [32 °F to 302 °F]
47 °C to 107 °C [117 °F to 225 °F]
0 °C to 150 °C [32 °F to 302 °F]
WE-1 gold alloy cross point
UL
-12 °C to 105 °C [10 °F to 250 °F]
-18 °C to 121 °C [0 °F to 250 °F]
silver/nickel alloy
Environmental exposure range -18 °C to 177 °C [0 °F to 350 °F]
Contacts
silver/nickel alloy
UL, CSA, VDE
Approvals
UL, CSA, VDE
3
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Thermostats line Guide
Commercial
Thermostats
2455RC Series
2455RG Series
2455Rm Series
Use
high current
automatic
ceramic
low voltage
automatic
high current
manual
Reset type
Housing material
Functional property
Amperage
phenolic
phenolic
open on rise
15 A/10 A
open or close on rise
0.5 A
open on rise
15 A/10 A
0 °C to 150 °C [32 °F to 302 °F]
(inclusive)
Operating temperature range
0 °C to 260 °C [32 °F to 500 °F]
0 °C to 150 °C [32 °F to 302 °F]
Environmental exposure range -20 °C to 287 °C [0 °F to 550 °F]
-18 °C to 177 °C [0 °F to 350 °F]
WE-1 gold alloy cross point
UL, CSA, VDE
-18 °C to 260 °C [0 °F to 500 °F]
silver/nickel alloy
Contacts
silver/nickel alloy
UL, CSA, VDE
Approvals
UL, CSA, VDE
Precision
Thermostats
3000 Series
Description
custom packaged
Amperage
7.0 A resistive
Housing material
Operating temperature
stainless steel or brass
-29 °C to 260 °C [-20 °F to 500 °F]
Environmental exposure range -62 °C to 288 °C [-80 °F to 550 °F]
Dielectric strength
Insulation resistance
Contact resistance
Hermetic seal
Moisture resistance
Shock
MIL-STD-202, Method 301; 1250 Vac 60 Hz - Terminal to Case
MIL-STD-202, Method 302; 50 MOhm min. Terminal to Case
MIL-STD-202, Method 307; 0.050 Ohm
MIL-STD-202, Method 112; Cond. A, 1x10-5 atm cc/s
MIL-STD-202, Method 106
N/A
N/A
N/A
N/A
N/A
Vibration
Thermal shock
Salt spray
Acceleration
4
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Precision
Thermostats
3100 Series
3100U Series
3106 Series
Description
Amperage
hermetic
UL-approved hermetic
low level hermetic
2.0 A/1.0 A/5.0 A/5.0 A
3.0 A resistive max.
100 mA/500 mA
steel housing hermetically sealed with
glass-to-metal seal at terminal junction
steel housing hermetically sealed with
glass-to-metal seal at terminal junction glass-to-metal seal at terminal junction
steel housing hermetically sealed with
Housing material
Operating temperature
-29 °C to 260 °C [-20 °F to 500 °F]
-29 °C to 260 °C [-20 °F to 500 °F]
-62 °C to 288 °C [-80 °F to 550 °F]
-29 °C to 204 °C [-20 °F to 400 °F]
-62 °C to 260 °C [-80 °F to 500 °F]
Environmental exposure range -62 °C to 288 °C [-80 °F to 550 °F]
MIL-STD-202, Method 301; 1250 Vac 60 Hz MIL-STD-202, Method 301; 1250 Vac
MIL-STD-202, Method 301; 1250 Vac
60 Hz - Terminal to Case
Dielectric strength
- Terminal to Case
60 Hz - Terminal to Case
MIL-STD-202, Method 302; 50 MOhm
or MIL-STD-202, Method 302; Cond.
B - 500 MOhm - 500 Vdc applied
MIL-STD-202, Method 302; Cond. B - 500
MOhm - 500 Vdc applied
MIL-STD-202, Method 302; Cond. B -
500 MOhm - 500 Vdc applied
Insulation resistance
MIL-STD-202, Method 307; 0.050 Ohm MIL-STD-202, Method 307; 0.050
Contact resistance
Hermetic seal
MIL-STD-202, Method 307; 0.050 Ohm
max.
Ohm
MIL-STD-202, Method 112;
Cond. 1 x 10-5
MIL-STD-202, Method 112;
Cond. 1 x 10-5
MIL-STD-202, Method 112;
Cond. 1 x 10-5
Moisture resistance
Shock
MIL-STD-202, Method 106
MIL-STD-202, Method 106
MIL-STD-202, Method 106
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Vibration
Thermal shock
Salt spray
Acceleration
5
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Thermostats line Guide
Precision
Thermostats
3150 Series
3153 Series
3156 Series
3200 Series
Description
Amperage
low silhouette hermetic
2.0 A/1.0 A/2.0 A/2.0 A
low silhouette hermetic
2.0 A resistive
low level, silhouette hermetic
100 mA/500 mA
aerospace
5.0 A resistive
steel housing hermetically
sealed with glass-to-metal
seal at terminal junction
steel housing hermetically
sealed with glass-to-metal
seal at terminal junction
steel housing hermetically
sealed with glass-to-metal seal sealed with glass-to-metal seal
at terminal junction
steel housing hermetically
Housing material
at terminal junction
-29 °C to 177 °C
[-20 °F to 350 °F]
-29 °C to 177 °C
[-20 °F to 350 °F]
-29 °C to 204 °C
[-20 °F to 400 °F]
-51 °C to 163 °C
[-60 °F to 325 °F]
Operating temperature
-54 °C to 260 °C
[-65 °F to 500 °F]
-65 °C to 260 °C
[-85 °F to 500 °F]
-62 °C to 260 °C
[-80 °F to 500 °F]
-65 °C to 177 °C
[-85 °F to 350 °F]
Environmental exposure range
MIL-STD-202, Method 301; MIL-STD-202, Method 301; MIL-STD-202, Method 301;
MIL-STD-202, Method 301;
1250 Vac
Dielectric strength
750 Vac 60 Hz - Terminal
to Case
1250 Vac 60 Hz - Terminal
to Case
1250 Vac 60 Hz - Terminal to
Case
MIL-STD-202, Method 302;
Cond. B - 500 MOhm - 500
Vdc applied
MIL-STD-202, Method 302;
Cond. B - 500 MOhm - 500 Vdc
applied
MIL-STD-202, Method 302;
500 MOhm
MIL-STD-202, Method 302;
500 MOhm
Insulation resistance
Contact resistance
MIL-STD-202, Method 307; MIL-STD-202, Method 307; MIL-STD-202, Method 307;
0.050 Ohm 0.050 Ohm max. 0.050 Ohm
MIL-STD-202, Method 112; MIL-STD-202, Method 112; MIL-STD-202, Method 112;
MIL-STD-202, Method 307;
0.025 Ohm max.
MIL-STD-202, Method 112;
Cond. C
Hermetic seal
Moisture resistance
Shock
Cond. 1 x 10-5
Cond. C
Cond. 1 x 10-5
MIL-STD-202, Method 106
MIL-STD-202, Method 106
MIL-STD-202, Method 106
MIL-STD-202, Method 106
MIL-STD-202, Method 213;
100 G
MIL-STD-202, Method 213;
750 G
N/A
N/A
MIL-STD-202, Method 204;
30 G: MIL-STD-202, Method
214; 50 G
MIL-STD-202, Method 204;
20 G
Vibration
N/A
N/A
MIL-STD-202, Method 107;
Cond. B
MIL-STD-202, Method 107;
Cond. B
Thermal shock
Salt spray
N/A
N/A
N/A
N/A
N/A
N/A
MIL-STD-202, Method 101;
Cond. B
MIL-STD-202, Method 101;
Cond. B
MIL-STD-202, Method 212;
20 G
Acceleration
N/A
6
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Benefits: Small product size allows
enhanced response to temperature
changes. Factory calibrated to customer’s
specification. Potential for use in high
current HVAC, automotive, copy machine,
Benefits: Small product size allows
enhanced response to temperature
changes. Factory calibrated to customer’s
specification. Gold alloy contacts allow
for potential use for low voltage HVAC,
2450R Series.
Features: Cost effective • Rivet sleeve
construction • Low profile • Wide variety of
mounting brackets and terminals
Benefits: Low profile and small size
allows enhanced response to temperature
changes. Factory calibrated to customer’s
specification. Potential for use in
high current HVAC, major appliance,
automotive, heat/smoke detector and copy
machine applications.
major appliance and heat/smoke detection automotive, copy machines, heat/
applications.
smoke detection and major appliance
applications.
2455RA Series.
Features: Cost effective • Gold alloy
contacts • Epoxy-sealed cap and
terminals • Wide variety of terminals
• Stepped aluminum cap - 15 ft spacing,
1” collector for 30’ spacing, and a 1.5
in collector for 50 ft spacing. Collector
brackets available per UL
2455Rm Series.
Features: Cost effective • Rivet sleeve
construction • Factory calibrated • Wide
variety of mounting brackets and terminals
2450RC Series.
Benefits: Small size allows enhanced
response to temperature changes. Used
in high current. Factory calibrated to
customer’s specification. Potential uses
include HVAC, power supply and office
automation.
Features: Cost effective • Rivet sleeve
construction • Low profile • Wide variety of
mounting brackets and terminals
Benefits: Small size allows enhanced
response to temperature changes.
Epoxy sealed for long life. Available with
or without heat collectors. Gold alloy
contacts allow for potential use for low
voltage fire alarm, smoke detector and
security device applications.
Benefits: Low profile and small size
allows enhanced response to temperature
changes. Potential for use in high current
HVAC, power supplies, decorative fire
places, glue gun applications.
PRECiSion ThERmoSTATS
3000 Series.
Features: Custom packaging
• Hermetically sealed • Tight tolerances
• Tight differentials • Customized probe
length • Hermetic connector or potted
constructions
2450RCG Series.
Features: Cost effective • Gold alloy
contacts • Rivet sleeve construction • Low
profile • Wide variety of mounting brackets
and terminals
2455RBV Series.
Features: Cost effective • Epoxy overmold
• Rivet sleeve construction • Dust-free
housing • Factory calibrated • Wide
variety of mounting brackets and terminals
Benefits: Internal and external design
options meet exacting customer
requirements. All-welded, hermetically-
sealed stainless steel construction for
potential military applications requiring
flexibility in mounting and terminal
configurations.
Benefits: Low profile and small product
size allows enhanced response to
temperature changes. Gold alloy contacts
allow for potential use for low voltage
HVAC, power supply, decorative fire
places and glue gun applications.
Benefits: Epoxy overmolded construction
provides electrical insulation. Small size
allows enhanced response to temperature
changes. Factory calibrated to customer’s
specification. Potential for use in high
current automotive and industrial
2450RG Series.
3100 Series.
equipment applications.
Features: Cost effective • Gold alloy
contacts • Rivet sleeve construction
• Wide variety of mounting brackets and
terminals
Features: Hermetically sealed • Tight
tolerances • Tight differentials • Pre-set
and tamper proof • SPST contacts • Wide
variety of mounting brackets and terminals
2455RC Series.
Features: Cost effective • Rivet sleeve
construction • High profile • Wide variety
of mounting brackets and terminals
Benefits: Small product size allows
enhanced response to temperature
changes. 4- posted “H” construction for
application mounting bracket. Gold alloy
contacts allow for potential use for low
voltage tabletop appliance applications.
Benefits: Designed to meet or exceed
critical commercial and industrial
specifications. Temperature calibrations
pre-set at factory. Each unit 100%
thermally and mechanically inspected.
Potential applications include computers,
medical electronics, power supplies,
industrial controls, infotech, and test
equipment.
Benefits: Small product size allows
enhanced response to temperature
changes. Potential for use in high current
HVAC, power supply, spa and office
automation applications.
2455R Series.
2455RG Series.
Features: Cost effective • Rivet sleeve
construction • High profile • High current
• Wide variety of mounting brackets and
terminals
Features: Cost effective • Gold alloy
contacts • Rivet sleeve construction
• High profile • Factory calibrated • Wide
variety of mounting brackets and terminals
7
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3100U Series.
3150 Series.
3156 Series.
Features: UL approved • Hermetically
sealed • Tight tolerances • Tight
differentials • Pre-set and tamper proof
• SPST contacts • Wide variety of
mounting brackets and terminals
Features: Low silhouette and compact
design • Hermetically sealed • Tight
tolerances • Tight differentials • Pre-set
and tamper proof • SPST contacts • Wide
variety of mounting brackets and terminals proof • SPST contacts • Wide variety of
mounting brackets and terminals
Features: Low silhouette and compact
design • Gold alloy contacts
• Hermetically sealed • Tight tolerances
• Tight differentials • Pre-set and tamper
Benefits: UL approved products designed Benefits: Low silhouette and compact
to meet or exceed critical commercial
and industrial specifications. Temperature
calibrations pre-set at factory. Each
unit 100 % thermally and mechanically
inspected. Potential applications include
computers, medical electronics, power
supplies, industrial controls, infotech, and
test equipment.
design may be well suited for potential
applications including industrial, food
service, telecom, medical, and infotech
Benefits: Gold alloy contacts for potential
low voltage applications. Temperature
calibrations pre-set at factory. Each
where space is at a premium. Temperature unit 100% thermally and mechanically
calibrations pre-set at factory. Each
unit 100% thermally and mechanically
inspected.
inspected. Low silhouette and compact
design may be well suited for potential
applications including industrial, food
service, telecom, medical, and infotech
where space is at a premium.
3153 Series.
3106 Series.
Features: Gold alloy contacts
• Hermetically sealed • Tight tolerances
• Tight differentials • Pre-set and tamper
proof • SPST contacts • Wide variety of
mounting brackets and terminals
Features: Low silhouette and compact
design • Hermetically sealed • Tight
tolerances • Tight differentials • Pre-set
and tamper proof • SPST contacts • Wide
3200 Series.
Features: NASA certified • Space
qualified • Hermetically sealed • Tight
variety of mounting brackets and terminals tolerances • Tight differentials • Pre-set
and tamper proof • SPST contacts • Wide
Benefits: Acceptance testing performed
variety of mounting brackets and terminals
in accordance to Mil-PRF-24236, Table
Benefits: Gold alloy contacts for low
voltage applications. Designed to meet or
exceed critical commercial and industrial
specifications. Temperature calibrations
pre-set at factory. Each unit 100%
thermally and mechanically inspected.
Potential applications include computers,
medical electronics, power supplies,
industrial controls, infotech, and test
equipment.
available
III. Temperature calibrations pre-set at
factory. Each unit 100% thermally and
mechanically inspected. Low silhouette
and compact design may be well suited
for potential military and commercial
aircraft applications where space is at a
premium.
Benefits: Temperature calibrations pre-set
at factory. Each unit 100% thermally and
mechanically inspected. Desinged to
meet or exceed military and aerospace
specifications for spaceflight use,
including temperature stability, shock,
vibration and cleanliness.
8
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Warranty. Honeywell warrants goods of
its manufacture as being free of defective
materials and faulty workmanship.
While we provide application assistance
personally, through our literature and
the Honeywell web site, it is up to the
customer to determine the suitability of the
product in the application.
WARninG
PERSonAl inJURY
•DO NOT USE these products as
safety or emergency stop devices
or in any other application where
failure of the product could result in
personal injury.
Honeywell’s standard product warranty
applies unless agreed to otherwise by
Honeywell in writing; please refer to your
order acknowledgement or consult your
local sales office for specific warranty
details. If warranted goods are returned to
Honeywell during the period of coverage,
Honeywell will repair or replace, at its
option, without charge those items it finds
defective. The foregoing is buyer’s sole
remedy and is in lieu of all warranties,
expressed or implied, including those
of merchantability and fitness for a
particular purpose. in no event shall
honeywell be liable for consequential,
special, or indirect damages.
Specifications may change without notice.
The information we supply is believed to
be accurate and reliable as of this printing.
However, we assume no responsibility for
its use.
Failure to comply with these
instructions could result in death or
serious injury.
WARninG
miSUSE oF DoCUmEnTATion
For more information about Sensing and
com/sensing or call +1-815-235-6847
Email inquiries to [email protected]
•The information presented in this
catalogue is for reference only. DO
NOT USE this document as product
installation information.
•Complete installation, operation and
maintenance information is provided
in the instructions supplied with each
product.
Failure to comply with these
instructions could result in death or
serious injury.
Sensing and Control
Automation and Control Solutions
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422 USA
+1-815-235-6847
009031-2-EN IL50 GLO
March 2011
Copyright © 2011 Honeywell International Inc. All rights reserved.
www.honeywell.com/sensing
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