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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:
Precision Thermostats |
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Hermetic Thermostats |
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Series |
Features |
Applications |
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3100 |
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Tight temperature tolerances and differentials available |
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6 A 120 Vac rating |
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Environmental exposure -62 °C to 288 °C [-80 °F to 550 °F] |
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Industrial glue guns |
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Blood analyzers |
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Battery pack heater |
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3106 |
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Gold alloy cross-point contacts for use in logic level circuits |
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Tight temperature tolerances and differentials available |
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Solid state control backup |
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3150 |
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Low profile 7,7 mm [0.305 in] maximum design height |
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6 A 120Vac rating |
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Tight temperature tolerances and differentials available |
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Commercial aircraft avionics |
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Power supplies |
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Copy machine overheat protection |
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3156 |
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Gold alloy cross-point contacts for use in logic level circuits |
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Low profile 7,7 mm [0.305 in] maximum design height |
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UL recognized and CSA certified |
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Tight temperature tolerances and differentials available |
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Dry circuit applications where space is limited |
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Custom Packaged Thermostats |
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Series |
Features |
Applications |
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3000 |
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Customized probe length |
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Custom probe materials |
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Many termination/connector options |
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Heater control |
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Aircraft bleed air Duct sensing |
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Liquid bath control |
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Hydraulic oil temperature control |
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Non-Hermetic Thermostats |
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Series |
Features |
Applications |
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3001, 3004 |
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Low profile and lightweight (Model 3001) |
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European approved (3004 only) |
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Tight temperature tolerances and differentials available |
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Computers |
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Office equipment |
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Blood analyzers |
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High Amperage Thermostats 15 A |
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Series |
Features |
Applications |
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3450, 3455R, 3455RBV |
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Electrical rating to 15 A 120 Vac resistive |
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UL recognized, CSA certified and European approved |
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Single-pole, single-throw |
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Environmental exposure for the 3450 & 3455R -18 °C to 177 °C [0 °F to 350 °F] |
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Environmental exposure for the 3455RBV -18 °C to 121 °C [0 °F to 250 °F] |
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Power supplies |
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Communications equipment |
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Medical equipment |
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Computers (where high amperage loads are present) |
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3450RC, 3455RC |
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High temperature environmental exposure -18 °C to 288 °C [0 °F to 550 °F] |
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Electrical rating to 15 A 120 Vac resistive |
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UL recognized, CSA certified and European approved |
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Single-pole, single-throw |
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Communications equipment |
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Computers (where high amperage loads are present) |
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Medical equipment |
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Appliances |
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Manual Reset Thermostats |
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Series |
Features |
Applications |
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3455RM, 3450CM |
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Manually resettable operation (reset button) |
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Electrical rating to 15 A 120 Vac resistive |
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UL recognized and CSA certified |
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Environmental exposure 10 °C to 177 °C [50 °F to 350 F] |
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Where automatic reset is not preferred |
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Commercial Thermostats |
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Phenolic Thermostats |
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Series |
Features |
Applications |
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2450R, 2450HR, 2455R |
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15 A, 120 Vac; 10 A, 240 Vac |
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UL recognized, CSA certified and European approved |
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Contacts are available for mV and mA applications |
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Environmental exposure 0 °C to 177 °C [32 °F to 350 °F] |
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Copy machines |
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Medical equipment |
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Power supplies |
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Ceramic Thermostats |
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Series |
Features |
Applications |
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2450RC, 2450RCH, 2455RC |
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15 A 120 Vac; 10 A 240 Vac |
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UL recognized, CSA certified and European approved |
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Contacts are available for mV and mA applications |
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Environmental Exposure 0 °C to 177 °C [32 °F to 350 °F] |
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Office automation products |
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Table-top applications |
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Industrial equipment |
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Appliances |
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Manual Reset Thermostats |
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Series |
Features |
Applications |
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2455RM, 2450CM |
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15 A, 120 Vac; 10 A, 240 Vac |
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UL recognized, CSA certified and European approved |
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Environmental Exposure for 2455RM -18 °C to 121 °C [0 °F to 250 °F] |
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Environmental exposure for 3450CM 10 °C to 260 °C [50 °F to 500 °F] |
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Office automation products |
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Medical equipment |
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Overmolded Automatic Reset Thermostats |
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Series |
Features |
Applications |
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2455RBV |
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15 A ,120 Vac; 8.3 A, 240 Vac |
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UL recognized, CSA certified and European approved |
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Environmental exposure -18 °C to 121 °C [0 °F to 250 °F] |
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Industrial equipment |
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Heat Detection Thermostats |
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Series |
Features |
Applications |
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2450A, 2455RA |
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UL recognized |
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Environmental exposure 0 °C to 150 °C [32 °F to 302 °F] |
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Heat detection |
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One-shot Thermostats |
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Series |
Features |
Applications |
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2450R, 2455R, 2450RC, 2455RC |
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15 A, 120 Vac; 10 A, 240 Vac |
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UL recognized, CSA certified and European approved |
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Environmental exposure for 2450R & 2455R 0 °C to 177 °C [32 °F to 350 °F] |
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Environmental exposure for 2450RC & 2455RC 0 °C to 288 °C [32 °F to 550 °F] |
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Automation equipment |
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Tabletop appliances |
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