Thermostats
line Guide
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
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.
FEATURES
CommERCiAl ThERmoSTATS
2450A Series.
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:
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.
2450Cm Series.
Features:
Cost effective • Rivet sleeve
construction • Wide variety of mounting
brackets and terminals
Benefits:
Small size allows enhanced
response to temperature changes.
Potential for use in high current HVAC,
appliance, hot water heater and office
automation applications.
2450hR Series.
Features:
Cost effective • Rivet sleeve
construction • Factory calibrated • Wide
variety of mounting brackets and terminals
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.
2450CmG Series.
Features:
Cost effective • Gold alloy
contacts • Rivet sleeve construction
• 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.
2450hRG Series.
Features:
Cost effective • Gold alloy
contacts • Rivet sleeve construction
• Factory calibrated • Wide variety of
mounting brackets and terminals
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.
www.honeywell.com/sensing
page
1
continued on
7
Thermostats line Guide
Well over 5,000 reasons to
choose honeywell.
With over 5,000 quality
components in our thermostat
line, we meet any domestic
or international need for
commercial or precision snap-
action solutions.
Commercial thermostats:
You’ll find Honeywell quality
in a wide array of small
and major appliances,
automotive applications, office
copy machines and HVAC
equipment, plus heat and
smoke detectors. Whether
it’s military or aerospace
industries, or your office
building, each Honeywell S&C
thermostat can be designed
to offer the performance and
reliability you demand, and the
service you need.
Precision thermostats:
A highly reliable lineup
for potential high-end
applications, including
computers, copy machines,
aircraft, radar, medical
equipment and electronic
control systems — each
designed to meet the most
stringent environmental
conditions for dielectric
strength, moisture, resistance,
vibration, shock and hermetic
seal. And S&C offers custom-
packaged thermostats for
complete application flexibility.
Commercial
Thermostats
2450A Series
Use
Reset type
Housing material
Functional property
Amperage
Operating temperature range
Environmental exposure range
Contacts
Approvals
heat detection
automatic
phenolic, epoxy seal cap
and terminals
open or close on rise
3A
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
2450Cm Series
high current
manual
ceramic
open on rise
15 A/10 A
52 °C to 232 °C
[125 °F to 450 °F]
10 °C to 260 °C
[50 °F to 500 °F]
silver/nickel alloy
UL, CSA, VDE
2450CmG Series
low voltage
manual
ceramic
open on rise
0.5 A
52 °C to 232 °C
[125 °F to 450 °F]
10 °C to 260 °C
[50 °F to 500 °F]
WE-1 gold alloy cross
point
UL, CSA, VDE
Commercial
Thermostats
2450hR Series
Use
Reset type
Housing material
Functional property
Amperage
Operating temperature range
Environmental exposure range
Contacts
Approvals
high current
automatic
phenolic
open or close on rise
15 A/10 A
0 °C to 150 °C
[32 °F to 302 °F]
-18 °C to 177 °C
[0 °F to 350 °F]
silver/nickel alloy
UL, CSA
2450hRG Series
low current
automatic
phenolic
open on rise
0.5 A
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
2450R Series
high current
automatic
phenolic
open or close on rise
15 A/10 A
0 °C to 150 °C
[32 °F to 302 °F]
-18 °C to 177 °C
[0 °F to 350 °F]
silver/nickel alloy
UL, CSA
2
www.honeywell.com/sensing
Commercial
Thermostats
2450RC Series
Use
Reset type
Housing material
Functional property
Amperage
Operating temperature range
Environmental exposure range
Contacts
Approvals
high current
automatic
ceramic
open or close on rise
15 A/10 A
0 °C to 260 °C [32 °F to 500 °F]
-20 °C to 287 °C [0 °F to 550 °F]
silver/nickel alloy
UL, CSA, VDE
2450RCG Series
low voltage
automatic
ceramic
open or close on rise
0.5 A
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
2450RG Series
low voltage
automatic
phenolic
open or close on rise
0.5 A
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
Commercial
Thermostats
2455R Series
Use
Reset type
Housing material
Functional property
Amperage
Operating temperature range
Environmental exposure range
Contacts
Approvals
high current
automatic
phenolic
open or close on rise
15 A/10 A
0 °C to 150 °C [32 °F to 302 °F]
-18 °C to 177 °C [0 °F to 350 °F]
silver/nickel alloy
UL, CSA, VDE
2455RA Series
heat detection
automatic
phenolic, epoxy seal cap and terminals
close on rise
3A
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
2455RVB Series
high current
automatic
ceramic, epoxy overmold
open or close on rise
15 A/10 A
-12 °C to 105 °C [10 °F to 250 °F]
-18 °C to 121 °C [0 °F to 250 °F]
silver/nickel alloy
UL, CSA, VDE
www.honeywell.com/sensing
3
Thermostats line Guide
Commercial
Thermostats
2455RC Series
Use
Reset type
Housing material
Functional property
Amperage
Operating temperature range
Environmental exposure range
Contacts
Approvals
high current
automatic
ceramic
open on rise
15 A/10 A
0 °C to 260 °C [32 °F to 500 °F]
-20 °C to 287 °C [0 °F to 550 °F]
silver/nickel alloy
UL, CSA, VDE
2455RG Series
low voltage
automatic
phenolic
open or close on rise
0.5 A
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, VDE
2455Rm Series
high current
manual
phenolic
open on rise
15 A/10 A
0 °C to 150 °C [32 °F to 302 °F]
(inclusive)
-18 °C to 260 °C [0 °F to 500 °F]
silver/nickel alloy
UL, CSA, VDE
Precision
Thermostats
3000 Series
Description
Amperage
Housing material
Operating temperature
Environmental exposure range
Dielectric strength
Insulation resistance
Contact resistance
Hermetic seal
Moisture resistance
Shock
Vibration
Thermal shock
Salt spray
Acceleration
4
custom packaged
7.0 A resistive
stainless steel or brass
-29 °C to 260 °C [-20 °F to 500 °F]
-62 °C to 288 °C [-80 °F to 550 °F]
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
www.honeywell.com/sensing
Precision
Thermostats
3100 Series
Description
Amperage
Housing material
Operating temperature
Environmental exposure range
Dielectric strength
Insulation resistance
Contact resistance
Hermetic seal
Moisture resistance
Shock
Vibration
Thermal shock
Salt spray
Acceleration
hermetic
2.0 A/1.0 A/5.0 A/5.0 A
steel housing hermetically sealed with
glass-to-metal seal at terminal junction
-29 °C to 260 °C [-20 °F to 500 °F]
-62 °C to 288 °C [-80 °F to 550 °F]
MIL-STD-202, Method 301; 1250 Vac 60 Hz
- Terminal to Case
MIL-STD-202, Method 302; Cond. B - 500
MOhm - 500 Vdc applied
MIL-STD-202, Method 307; 0.050 Ohm
MIL-STD-202, Method 112;
Cond. 1 x 10-5
MIL-STD-202, Method 106
N/A
N/A
N/A
N/A
N/A
3100U Series
UL-approved hermetic
3.0 A resistive max.
steel housing hermetically sealed with
glass-to-metal seal at terminal junction
-29 °C to 260 °C [-20 °F to 500 °F]
-62 °C to 288 °C [-80 °F to 550 °F]
MIL-STD-202, Method 301; 1250 Vac
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 307; 0.050 Ohm
max.
MIL-STD-202, Method 112;
Cond. 1 x 10-5
MIL-STD-202, Method 106
N/A
N/A
N/A
N/A
N/A
3106 Series
low level hermetic
100 mA/500 mA
steel housing hermetically sealed with
glass-to-metal seal at terminal junction
-29 °C to 204 °C [-20 °F to 400 °F]
-62 °C to 260 °C [-80 °F to 500 °F]
MIL-STD-202, Method 301; 1250 Vac
60 Hz - Terminal to Case
MIL-STD-202, Method 302; Cond. B -
500 MOhm - 500 Vdc applied
MIL-STD-202, Method 307; 0.050
Ohm
MIL-STD-202, Method 112;
Cond. 1 x 10-5
MIL-STD-202, Method 106
N/A
N/A
N/A
N/A
N/A
www.honeywell.com/sensing
5
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