Other, for the articles of subheading 8535.90.40, 8536.30.40 or 8536.50.40, of ceramic or metallic materials, electrically or mechanically reactive to changes in temperature
Parts suitable for use solely or principally with the apparatus of heading 8535, 8536 or 8537: > Other: > Other, for the articles of subheading 8535.90.40, 8536.30.40 or 8536.50.40, of ceramic or metallic materials, electrically or mechanically reactive to changes in temperature
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8538.90.40.00
Ceramic PTC Thermistor for Motor Protectors
A positive temperature coefficient (PTC) ceramic thermistor designed specifically for use in motor overload protectors under HTS 8536.50.40. It increases resistance dramatically with temperature rise to limit current and protect the motor from overheating. Made of ceramic material that reacts electrically to temperature changes.
Metallic Bimetal Strip for Relay Thermal Protection
A bimetallic strip made of two bonded metallic alloys for thermal snap-action relays under HTS 8536.30.40. It mechanically deforms when heated to open or close electrical contacts, providing over-temperature protection. Reacts mechanically to temperature changes per subheading requirements.
Ceramic NTC Thermistor for Switch Overheat Detection
Negative temperature coefficient (NTC) ceramic thermistor for use in automatic circuit breakers and thermal switches of HTS 8535.90.40. Provides precise temperature monitoring by decreasing resistance as temperature rises. Ceramic construction ensures electrical reactivity to temperature changes.
Metallic Thermal Fuse Element for Appliance Protectors
Low-melting-point metallic alloy fuse wire for thermal cutouts in household appliances under HTS 8536.50.40. Melts mechanically at precise temperature thresholds to break circuits during overheat conditions. Metallic material specifically reactive to temperature per HTS specifications.
Ceramic Temperature-Sensitive Resistor for Motor Starter
PTC ceramic resistor element for motor starting relays classified under HTS 8536.30.40. Provides inrush current limiting by increasing resistance as temperature rises during startup. Dedicated ceramic part electrically reactive to operating temperature changes.
Bimetallic Disc for Circuit Breaker Thermal Trip
Snap-action bimetallic disc for thermal-magnetic circuit breakers of HTS 8535.90.40. Warps mechanically at calibrated temperatures to trip breaker mechanism and interrupt power. Two-metal construction provides precise temperature reactivity.
Ceramic Thermal Protector Sensor for HVAC Relays
NTC ceramic sensor for thermal protector relays in HVAC systems under HTS 8536.30.40. Monitors compressor temperatures and signals relay cutoff via resistance change. Temperature-electrically reactive ceramic material per subheading note.
Metallic Shape Memory Alloy Actuator for Switches
Nitinol shape memory alloy wire actuator for temperature-sensitive switches in HTS 8536.50.40 apparatus. Contracts mechanically when reaching activation temperature to operate switch contacts. Metallic material reactive to temperature changes.
Ceramic PTC Disk for Overload Relay Protection
Large ceramic PTC heating disk for bimetallic overload relays classified in HTS 8536.30.40. Self-heats to trip relay mechanism when motor current exceeds safe levels. Provides both electrical and thermal protection reactivity.
Bimetal Blade for Thermal Cutout Switch
Precision bimetal blade for thermal cutout switches in appliances under HTS 8536.50.40. Bends at predetermined temperature to separate contacts and prevent fires. Metallic construction provides reliable mechanical temperature response.