THERMOSTATS - COMMERCIAL
Thermostats - Commercial
Commercial thermostats include products for use in a wide array of small
and major appliances, automotive applications, office copy machines,
heat and smoke detectors and HVAC equipment. These snap-action
thermostats include automatic or manual reset options, phenolic or
ceramic housings, and a variety of mounting brackets and terminal
options.
NOTE: The products in this section do not follow the “how to use this
catalogue” instructions provided in the catalogue introduction. Specific
reference numbers are not given due to their custom nature. Please
contact your local Honeywell sales office for ordering information.
2450R/2450HR/2455R Series Phenolic
Automatic Reset Thermostats
A temperature-sensitive bimetal disc, electrically isolated from the switch,
actuates the normally closed contacts. The contacts open when the
surface or ambient temperatures increase to the operating snap point of
the calibrated disc. Response to temperature changes is extremely rapid
due to the inherently low mass of the disc and the small size of the
product. These products are factory calibrated to the customer’s
specification.
Reset type:
Amperage capacity:
Housing material:
Operating temperature range:
Environmental exposure range:
Automatic
15 A resistive max.
Phenolic
0 °C to 150 °C [32 °F to 302 °F]
0 °C to 177 °C [32 °F to 350 °F]
2450HR
6,73
[0.265]
2,36 [0.093] DIA.
1,57 [0.062] DEEP
13,94
[0.549]
12,34
9,12 [0.486]
[0.359]
14,43 DIA.
[0.568]
16,0 DIA.
[0.630]
SERIES NAME
2450HR Phenolic Automatic Reset Thermostat
2450R
14,43 DIA.
[0.568]
2455R
9,63
[0.379]
14,43 DIA.
[0.568]
11,91
[0.469]
16,0 DIA.
[0.630]
0,51
[0.020]
16,0 DIA.
[0.630]
0,51
[0.020]
SERIES NAME
2450R Phenolic Automatic Reset Thermostat
SERIES NAME
2455R Phenolic Automatic Reset Thermostat
www.honeywell.com/sensing
27
THERMOSTATS - COMMERCIAL
2450RC/2450RCH/2455RC Series
Ceramic Automatic Reset Thermostats
A temperature-sensitive bimetal disc, electrically isolated from the switch,
actuates the normally closed contacts. The contacts open when the
surface or ambient temperatures increase to the operating snap point of
the calibrated disc. Response to temperature changes is extremely rapid
due to the inherently low mass of the disc and the small size of the
product.
Reset type:
Amperage capacity:
Housing material:
Operating temperature range:
Environmental exposure range:
Automatic
15 A resistive max.
Ceramic
0 °C to 260 °C [32 °F to 500 °F]
–20 °C to 287 °C [0 °F to 550 °F]
2450CM/2455RM Series Ceramic and
Phenolic Manual Reset Thermostats
A temperature-sensitive bimetal disc, electrically isolated from the switch,
actuates the normally closed contacts. The contacts open when the
surface or ambient temperatures increase to the operating snap point of
the calibrated disc. The circuit will stay open above room ambient
temperature until the manual reset button is pressed. Response to
temperature changes is extremely rapid due to the inherently low mass
of the disc and the small size of the product.
Reset type:
Amperage capacity:
Housing material:
Operating temperature range:
Manual
15 A resistive max.
Ceramic or phenolic
52 °C to 232 °C [125 °F to 450 °F] (ceramic)
52 °C to 150 °C [125 °F to 302 °F] (phenolic)
Environmental exposure range:
10 °C to 260 °C [50 °F to 500 °F] (ceramic)
10 °C to 177 °C [50 °F to 350 °F] (phenolic)
2450RC
16,00
[0.379]
2450CM
1,04 [0.041] MAX TRAVEL OF
RESET BUTTON
ON CONTACT OPENING
15,98
[0.629]
14,48
12,90 [0.570]
[0.508]
9,63
[0.379]
14,43 DIA.
[0.568]
0,51
[0.020]
SERIES NAME
2450RC Ceramic Automatic Reset Thermostat
16,0 DIA.
[0.630]
9,55
9,04 [0.376]
[0.356]
0,51
[0.020]
SERIES NAME
2450CM Ceramic Manual Reset Thermostat
2450RCH
2,36 [0.093] DIA.
1,57 [0.062] DEEP
14,48
[0.570]
12,90
9,04 [0.508]
[0.356]
16,0 DIA.
[0.630]
SERIES NAME
2450RCH Ceramic Automatic Reset Thermostat
2455RM
2,77 DIA. RESET
[0.109] BUTTON
1,04 [0.041] MAX TRAVEL
OF RESET BUTTON ON
CONTACT OPENING
14,43 DIA.
[0.568]
15,88 ON CONTACT
[0.625] CLOSING
14,43 DIA.
[0.568]
11,91
[0.469]
ENCLOSED DISK
16,0 DIA.
[0.630]
0,51
[0.020]
2455RC
SERIES NAME
2455RM Phenolic Manual Reset Thermostat
14,43 DIA.
[0.568]
11,91
[0.469]
16,0 DIA.
[0.630]
0,51
[0.020]
SERIES NAME
2455RC Ceramic Automatic Reset Thermostat
28
www.honeywell.com/sensing
THERMOSTATS - COMMERCIAL
2450A/2455A Series Heat Detection
Thermostats
The gold contacts open or close on a temperature rise of 47
°
C to 107
°
C
[117
°
F to 225
°
F].
Reset type:
Automatic
Amperage capacity:
15 A resistive max.
Housing material:
Phenolic, epoxy-sealed cap and terminal
Operating temperature range:
47
°
C to 107
°
C [117
°
F to 225
°
F]
Environmental exposure range:
0
°
C to 150
°
C [32
°
F to 302
°
F]
2450R/2450RCH/2455R/2455RC Series
“One-shot” ½ in Thermostats
Products are designed for high limit applications where automatic reset
is not desired.
Reset type:
Amperage capacity:
Housing material:
Operating temperature range:
None
15 A resistive max.
ceramic or phenolic
52
°
C to 260
°
C [125
°
F to 500
°
F] (ceramic)
52
°
C to 150
°
C [125
°
F to 302
°
F] (phenolic)
Environmental exposure range:
18
°
C to 316
°
C [0 °F to 600
°
F] (ceramic)
°
18 C to 177
°
C [0 °F to 350
°
F] (phenolic)
2450A
9,63
[0.379]
2450R
14,43 DIA.
[0.568]
0,51
[0.020]
9,63
[0.379]
SERIES NAME
2450A Heat Detection Thermostat
16,0 DIA.
[0.630]
SERIES NAME
2450R Phenolic “One-shot” ½ in Thermostat
0,51
[0.020]
2455A
11,91
[0.469]
2450RCH
2,36 [0.093] DIA.
1,57 [0.062] DEEP
14,48
[0.570]
12,90
[0.508]
9,04
[0.356]
16,0 DIA.
[0.630]
0,51
[0.020]
SERIES NAME
2455A Heat Detection Thermostat
14,43 DIA.
[0.568]
2455RBV Series Overmolded Automatic
Reset Thermostats
A temperature-sensitive bimetal disc, electrically isolated from the switch,
actuates the normally closed contacts. The contacts open when the
surface or ambient temperatures increase to the operating snap point of
the calibrated disc. Response to temperature changes is extremely rapid
due to the inherently low mass of the disc and the small size of the
product.
Reset type:
Amperage capacity:
Housing material:
Operating temperature range:
Environmental exposure range:
Automatic
15 A resistive max.
Ceramic or phenolic, epoxy overmold
-12
°
C to 105
°
C [10
°
F to 221
°
F]
-18
°
C to 121
°
C [0
°
F to 250
°
F]
ENCLOSED DISK
SERIES NAME
2450RCH Ceramic “One-shot” ½ in Thermostat
2455R
14,43 DIA.
[0.568]
11,91
[0.469]
16,0 DIA.
[0.630]
0,51
[0.020]
2455RBV
AS REQUIRED
SERIES NAME
2455R Phenolic “One-shot” ½ in Thermostat
WIRE GAGE AND
INSULATION AS
REQUIRED
AS REQUIRED
2455RC
18,54
[0.730]
14,43 DIA.
[0.568]
11,91
[0.469]
16,0 DIA.
[0.630]
17,27 DIA.
[0.680]
0,51
[0.020]
0,51
[0.020]
SERIES NAME
2455RBV Overmolded Automatic Reset Thermostat
SERIES NAME
2455RC Ceramic “One-shot” ½ in Thermostat
www.honeywell.com/sensing
29
THERMOSTATS - COMMERCIAL
2450R Series Annular Ring Cap
Automatic Reset Thermostats
A temperature-sensitive bimetal disc, electrically isolated from the switch,
actuates the normally closed contacts. The contacts open when the
surface or ambient temperatures increase to the operating snap point of
the calibrated disc. Response to temperature changes is extremely rapid
due to the inherently low mass of the disc and the small size of the
product.
Automatic
15 A resistive, 12 Vdc
Phenolic, can be partially or totally sealed
against water ingress
Operating temperature range:
-10
°
C to 55
°
C [14
°
F to 131
°
F]
Environmental exposure range:
-40
°
C to 130
°
C [-40
°
F to 266
°
F]
Life Cycle Capability:
300 K at 12 Vdc, 10 A
Low Temperature Differential:
Down to 8
°
C [46
°
F]
Switch Temperature Tolerance:
±3
°
C
Reset type:
Amperage capacity:
Housing material:
2450R Series Fully Sealed Thermostats
A temperature-sensitive bimetal disc, electrically isolated from the switch,
actuates the normally closed contacts. The contacts open when the
surface or ambient temperatures increase to the operating snap point of
the calibrated disc. Response to temperature changes is extremely rapid
due to the inherently low mass of the disc and the small size of the
product.
Reset type:
Amperage capacity:
Housing material:
Operating temperature range:
Environmental exposure range:
Life cycle capability:
Low temperature differential:
Switch temperature tolerance:
Automatic
15 A resistive, 12 Vdc
Phenolic housing, aluminium cap totally
encapsulated in water resistant epoxy
-10
°
C to 55
°
C [14
°
F to 131
°
F]
-40
°
C to 130
°
C [-40
°
F to 266
°
F]
300 K at 12 Vdc, 10 A
Down to 8
°
C [46
°
F]
±3
°
C
16,1 MAX.
[0.63]
14,43 DIA.
[0.568]
9,63
[0.379]
11,5
[0.45]
16,0 DIA.
[0.630]
0,51
[0.020]
SERIES NAME
2450R Phenolic Annular Ring Cap Automatic Reset Thermostat
2450R/2455R Series Protected
Thermostats
A temperature-sensitive bimetal disc, electrically isolated from the switch,
actuates the normally closed contacts. The contacts open when the
surface or ambient temperatures increase to the operating snap point of
the calibrated disc. Basic thermostat is protected from the environment
by sealing it in a metal housing or encapsulating it in epoxy.
Reset type:
Amperage capacity:
Housing material:
Operating temperature range:
Environmental exposure range:
Automatic
15 A resistive, 12 Vdc
Brass, aluminium, stainless steel and epoxy
15
°
C to 130
°
C [59
°
F to 266
°
F]
-40
°
C to 155
°
C [-40
°
F to 311
°
F]
SERIES NAME
2450R Fully Sealed Thermostat
SERIES NAME
2450R Protected Thermostat
2455R Protected Thermostat
30
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Bimetal Thermostats - Sensing and Control - Honeywell Automation and Control Solutions
Temperature Sensors
Thermal Cutoffs
Thermistors & Probes
Thermostats
>Redi-Temp
Subminiature 3600
Series
>Redi-Temp Series 3100
SPST Hermetic Series
>Redi-Temp 3455 RC 15
AMP High Temp. Series
>Bimetal Precision &
Commercial Thermostats
Bimetal Thermostats
The Honeywell bimetal thermostat product line
consists of Single-Pole, Single-Throw (SPST)
hermetic and non-hermetic thermostats, including
low-silhouette, logic level, auto reset, manual
reset, one-shot, and subminiature thermostats
and thermal switches. These products are also
defined by their ability to reliably maintain
precision temperature tolerances or high
amperage electrical loads. They provide temperature control and overtemperature
protection for the appliance, office automation, industrial, commercial aircraft and
medical equipment industries.
Bimetal thermostats are snap-action devices designed to operate in extreme
conditions, such as exposure to hazardous substances, dust particles and liquid
immersion. Contacts are thermally and electrically isolated. Dust-proof performance
is achieved by using a ceramic or phenolic base protected by a metal enclosure. A
variety of custom configurations are available which provide environmental
protection.
Select a product from one of the following bimetal categories:
Search the Sensing and
Control Interactive
Catalog.
Search for product and
support information.
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Products & Applications
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Contact Us
Request Free Literature
Precision Thermostats
Hermetic Thermostats
Series
3100
Features
Tight temperature tolerances
and differentials available
6 A 120 Vac rating
Environmental exposure -62 °
C to 288 °C [-80 °F to 550 °F]
3106
Gold alloy cross-point
contacts for use in logic level
circuits
Tight temperature tolerances
and differentials available
Low profile 7,7 mm [0.305 in]
maximum design height
6 A 120Vac rating
Tight temperature tolerances
and differentials available
3156
Gold alloy cross-point
contacts for use in logic level
circuits
Low profile 7,7 mm [0.305 in]
maximum design height
UL recognized and CSA
certified
Tight temperature tolerances
and differentials available
Applications
Industrial glue guns
Blood analyzers
Battery pack heater
Solid state control backup
Precision Thermostats
Commercial Thermostats
3150
Commercial aircraft
avionics
Power supplies
Copy machine overheat
protection
Dry circuit applications
where space is limited
Custom Packaged Thermostats
Series
Features
Applications
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