4A HVAC Control Relay

Relay designed for thermostat and air handler switching with 4A contacts handling fan and compressor loads in residential HVAC systems. Under HTS 8536.49.00.55 as other <10A relays. UL listed for building controls.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.7%+35.0%37.7%
🇲🇽Mexico2.7%+10.0%12.7%
🇨🇦Canada2.7%+10.0%12.7%
🇩🇪Germany2.7%+10.0%12.7%
🇯🇵Japan2.7%+10.0%12.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8419.90Lower: 14% vs 37.7%

If parts of air conditioning machinery

HVAC-specific relays may follow machinery parts provisions.

8536.49.00Same rate: 37.7%

If heavy-duty HVAC relays ≥10A

Compressor control variants exceed <10A threshold.

9032.10Lower: 11.7% vs 37.7%

If thermostats containing relay

Complete temperature control units classified as such.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

• Include HVAC application datasheets and UL94 flammability ratings

• Verify contact ratings match actual HVAC loads (inductive vs resistive)

• Avoid bundling with complete thermostat assemblies (different tariff)

Related Products under HTS 8536.49.00.55

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Miniature Automotive PCB Relay

A compact relay designed for printed circuit board mounting in automotive applications, with contacts rated at 5A at 12V DC for controlling lights, fans, or fuel pumps. It falls under HTS 8536.49.00.55 as a relay for voltage not exceeding 1,000V with contacts rated less than 10A, not specified elsewhere. Used in vehicle electronics for reliable switching.

5A SPDT Signal Relay

A single pole double throw (SPDT) relay with 5A contacts used for low-power signal switching in telecommunications and instrumentation equipment. Classified under HTS 8536.49.00.55 for relays with contacts <10A at voltages ≤1,000V. Ideal for multiplexing and control circuits.

PCB Mount Latching Relay 3A

A bistable latching relay for PCB use that maintains contact position without continuous power, rated at 3A for low-energy applications like smart meters and HVAC controls. Fits HTS 8536.49.00.55 as other relays <10A contacts, ≤1,000V. Reduces power consumption in battery-powered devices.

General Purpose 6A DPDT Relay

Double pole double throw relay rated at 6A for industrial control panels, appliances, and automation systems operating at 24-240V AC/DC. Classified HTS 8536.49.00.55 as other relays with contacts <10A. Features DIN rail mounting option.

1A Reed Relay for Instrumentation

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