Thermostat User Manual
2  www.honeywell.com/sensing
2450A Series 2450CM Series 2450CMG Series
Use heat detection high current low voltage
Reset type automatic manual manual
Housing material
phenolic, epoxy seal cap 
and terminals
ceramic ceramic
Functional property open or close on rise open on rise open on rise
Amperage 3 A 15 A/10 A 0.5 A
Operating temperature range
47 °C to 107 °C
[117 °F to 225 °F]
52 °C to 232 °C 
[125 °F to 450 °F]
52 °C to 232 °C 
[125 °F to 450 °F]
Environmental exposure range
0 °C to 150 °C 
[32 °F to 302 °F]
10 °C to 260 °C 
[50 °F to 500 °F]
10 °C to 260 °C
[50 °F to 500 °F]
Contacts
WE-1 gold alloy cross 
point
silver/nickel alloy
WE-1 gold alloy cross 
point
Approvals UL UL, CSA, VDE UL, CSA, VDE
2450HR Series 2450HRG Series 2450R Series
Use high current low current high current
Reset type automatic automatic automatic
Housing material phenolic phenolic phenolic
Functional property open or close on rise open on rise open or close on rise
Amperage 15 A/10 A 0.5 A 15 A/10 A
Operating temperature range
0 °C to 150 °C 
[32 °F to 302 °F]
0 °C to 150 °C 
[32 °F to 302 °F]
0 °C to 150 °C 
[32 °F to 302 °F]
Environmental exposure range
-18 °C to 177 °C 
[0 °F to 350 °F]
-18 °C to 177 °C 
[0 °F to 350 °F]
-18 °C to 177 °C 
[0 °F to 350 °F]
Contacts silver/nickel alloy
WE-1 gold alloy cross 
point
silver/nickel alloy
Approvals UL, CSA UL, CSA UL, CSA
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.
Thermostats Line Guide
Commercial 
Thermostats
Commercial 
Thermostats










