Bimetallic Temperature Reactive Strip
Metallic bimetallic strip composed of two bonded metals with different thermal expansion coefficients, mechanically reactive by bending in response to temperature changes. HTS 8533.90.40.00 covers such metallic parts for 8533.40 goods used in thermal switches and thermostats. Essential for mechanical temperature control in HVAC systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If incorporated into automatic thermostat assemblies
Thermostatic switches with automatic controls are under 9032, not resistor parts.
If plain metallic strips without electrical reactivity designation
Unspecified iron/steel strips classified by material, not function.
If used in industrial valves or taps
Appliance parts for valves include certain temperature reactive metals.
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Import Tips & Compliance
• Document specific metal composition and deflection rates to prove mechanical reactivity; import unassembled to stay under parts classification; beware of complete switch classification under 8536
Related Products under HTS 8533.90.40.00
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A platinum resistance temperature detector (RTD) element made of ceramic substrate with thin-film platinum resistive track, electrically reactive to temperature changes by altering resistance linearly with temperature. Classified under HTS 8533.90.40.00 as a part for 8533.40 thermistors/resistors, specifically ceramic material reactive to temperature variations. Used in industrial process control for precise temperature measurement.
NTC Thermistor Ceramic Disc
Negative temperature coefficient (NTC) thermistor disc made from ceramic metal oxide materials that decrease resistance with increasing temperature, providing electrically reactive response. Fits HTS 8533.90.40.00 as ceramic parts for 8533.40 thermistors designed for temperature sensing applications. Commonly used in automotive and appliance overheat protection circuits.
Platinum Thin-Film RTD Chip
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Thermocouple Compensation Alloy Resistor
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Ceramic PTC Thermistor Element
Positive temperature coefficient (PTC) ceramic thermistor element that increases resistance dramatically at threshold temperature for self-regulating heating or overcurrent protection. Ceramic material electrically reactive per HTS 8533.90.40.00 for 8533.40 goods. Utilized in motor start circuits and battery protection.
Metallic Thermal Cutout Disc
Bimetallic metallic disc designed to snap-action open circuit at predetermined temperature, mechanically reactive for thermal protection. Qualifies under HTS 8533.90.40.00 as metallic part for 8533.40 temperature-responsive resistors. Standard in household appliance overtemperature safety devices.