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Remote-Bulb Sensor Temperature Controls
Available70 products
Remote-bulb sensor temperature controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. This style of thermostat uses expanding liquid to open or close contacts in response to temperature changes. These controls are ideal for commercial and industrial HVAC applications where the controller must be placed outside of the sensing area, such as refrigeration control and temperature regulation of air or liquids in ducts, pipes, tanks, and boilers.
Hazardous Location Single-Stage Controls
These temperature controls are suitable for use in hazardous locations, like grain elevators, chemical plants, and mines. They control temperatures in Class I, Group D and Class II, Groups E, F, and G hazardous locations. Class I, Group D hazardous locations are areas where flammable gases or vapors may be present. Class II, Groups E, F, and G hazardous locations are areas where combustible dust may be present. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
Enclosure Material: Unspecified
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Aluminum Enclosure
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High-Range Indoor Single-Stage Controls
These controls have a higher temperature range than other remote-bulb sensor controls. They're commonly used in hydronic heating systems with a required thermowell. These temperature controls have enclosures that meet NEMA 1 for use indoors. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These temperature controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
Fixed Differential
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Indoor Two-Stage Controls
These temperature controls are suitable for indoor heating, cooling, and refrigeration applications and have enclosures that meet NEMA 1 for use indoors. These controls can be used with optional, closed tank fittings and immersion wells for immersion applications. They're compatible with two-stage systems. Two-stage systems have two output levels, allow for more energy efficiency than single-stage systems, and cause less extreme changes in temperature. These temperature controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
Adjustable Differential; Steel Enclosure
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Two-Circuit Indoor Single-Stage Controls
These controls have a four-wire, two-circuit contact block that allows them to both regulate temperatures and perform a secondary function. The contact block contains two isolated sets of contacts, so when the main contact opens the auxiliary contact closes. These controls are commonly used to switch on an indicator light after a low-temperature cutout in ventilation systems. These controls have enclosures that meet NEMA 1 for use indoors. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These temperature controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control.
Adjustable
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Fixed
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Manual Reset
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Weatherproof Single-Stage Controls
These weatherproof temperature controls have a watertight enclosure and are ideal for cooling tower sump heaters, evaporative condensers, and heating and ventilation equipment. Their enclosures are rated NEMA 4X, so they're suitable for areas that are exposed to water spray, high humidity, airborne contaminants, and corrosive conditions. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
Plastic Enclosure
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Steel Enclosure
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Freeze Protection Weatherproof Single-Stage Controls
These controls regulate heat-tracing systems to provide freeze protection both indoors and outdoors. They can control a single heat-tracing circuit or act as a pilot control for a contactor switching multiple heat-tracing circuits. Also known as low-temperature cutout thermostats, they have weatherproof enclosures that meet NEMA 4X, so they're suitable for areas that are exposed to water spray, high humidity, airborne contaminants, and corrosive conditions. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control.
Fixed Differential
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Freeze Protection Indoor Single-Stage Controls
These freeze protection controls shut down cooling equipment to prevent overcooling or icing of hydronic coils, cooling coils, and pipes. Also known as low-temperature cutout thermostats, they have enclosures that meet NEMA 1 for use indoors. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control.
Fixed Differential
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Manual Reset Differential
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Defrost Duration & Fan Delay Single-Stage Controls
These controls regulate defrosting in refrigerated display cases to prevent frost buildup. Once the evaporator coil has been defrosted, the control turns off the defrost heater. The control also delays the evaporator fans from coming on immediately after defrost so residual condensate can refreeze and won't blow off onto the product. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These controls have a capillary tube and sensor that monitor and regulate the temperature of the air at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
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Indoor Single-Stage Controls
These temperature controls are suitable for indoor heating, cooling, and refrigeration applications. They have enclosures that meet NEMA 1 for use indoors. These controls can be used with optional, closed tank fittings and immersion wells for immersion applications. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These temperature controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
Adjustable Differential; Steel Enclosure
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Fixed Differential; Plastic Enclosure
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Fixed Differential; Stainless Steel Enclosure
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Fixed Differential; Steel Enclosure
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Manual Reset Differential; Steel Enclosure
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Rainproof Single-Stage Controls
These rainproof temperature controls are ideal for outdoor applications, like controlling cooling tower sump heaters. Their gasketed enclosures are rated NEMA 3R and are UL Listed for outdoor use, so they're suitable for areas that are exposed to rain, sleet, and snow. These controls can be used with optional closed tank fittings and immersion wells for immersion applications. These controls are compatible with single-stage systems. Single-stage systems have a single output level and allow the system to be either on or off. These temperature controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
Steel Enclosure
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Weatherproof Two-Stage Controls
These weatherproof temperature controls have a watertight enclosure and are ideal for cooling tower sump heaters, evaporative condensers, and heating and ventilation equipment. Their enclosures are rated NEMA 4X, so they're suitable for areas that are exposed to water spray, high humidity, airborne contaminants, and corrosive conditions. These controls are compatible with two-stage systems. Two-stage systems have two output levels, allow for more energy efficiency than single-stage systems, and cause less extreme changes in temperature. These temperature controls have a capillary tube and sensor that monitor and regulate the temperature of the ambient air, a liquid, or a gas at a distance away from the control. The sensing element is not affected by changes in barometric pressure or cross-ambient conditions to ensure accurate temperature regulation.
Steel Enclosure
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