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HSChapter 85
U.S. imports of static converters & adp power supplies (HS 850440) totaled $1.8B in April 2026, traded with 92 countries.
Importers of Static Converters & ADP Power Supplies paid $184.0M in duties in April 2026 — an effective duty rate of 13% on $1.4B in dutiable value, based on actual customs collections rather than the published tariff schedule. Static Converters & ADP Power Supplies imports of $1.8B in April 2026 ran 14% above the year-to-date monthly average of $1.5B.
Last updated: April 2026 dataStatic converters — including rectifiers, inverters, speed drive controllers, and power supplies for automatic data processing (ADP) machines — span one of the most granularly subdivided headings in Chapter 85, with 18 active 10-digit tariff lines differentiating by end-use (ADP-incorporated vs. standalone), output wattage (≤50 W through >500 W), and device type. Thailand leads US import supply for this heading, with China and Vietnam also prominent sources; goods of Chinese origin face Section 301 exposure across multiple lines. Speed drive controllers (8504404000) serve industrial motor applications, while the ADP power supply lines are essential inputs for server, desktop, and embedded computing hardware.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The distinction turns on whether the power supply is designed and dedicated for physical incorporation into an ADP machine or unit of heading 8471 (e.g., a server PSU sold as an OEM component) versus a standalone or general-purpose unit. Documentation such as OEM purchase orders, technical specifications, and end-use declarations can support the incorporated-use claim. Misclassification between these groups carries duty and penalty risk, so a binding ruling from CBP is advisable for high-volume importers.
Yes. Inverters under 8504409570 originating from China are generally subject to Section 301 tariffs. Importers should check the current Section 301 annexes and any product-specific exclusions, as the list and exclusion status can change. Working with a licensed customs broker to confirm current applicability is strongly recommended.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8504409580 | STATIC CONVERTERS, NESOI | $365.0M | 12.82% | $37.9M |
| 8504409570 | INVERTERS (STATIC CONVERTERS) | $315.3M | 11.27% | $28.8M |
| 8504406018 | POWR SUPPLS FR INC INTO ADP MACH/UNITS, GT 500 W | $312.2M | 13.47% | $38.0M |
| 8504408500 | STATIC CONVERTERS FOR TELECOMMUNICATION APPARATUS | $152.7M | 12.63% | $16.3M |
| 8504407018 | POWER SUPPLIES FOR ADP, POWER GT 500W, NESOI | $141.1M | 11.80% | $10.5M |
| 8504409550 | RECTIFIERS & RECTIFYING APPARATUS, NESOI | $126.5M | 12.77% | $13.8M |
| 8504409540 | POWER SUPPLIES (RECTIFIER) GT 500 W | $109.1M | 14.47% | $13.7M |
| 8504404000 | SPEED DIRVEN CONTROLERS FOR ELECTRIC MOTORS | $101.1M | 12.06% | $8.3M |
| 8504409510 | POWER SUPPLIES (RECTIFIER) POWER OUTPUT LT= 50 W | $35.9M | 18.02% | $5.2M |
| 8504409530 | POWER SUPPLIES(RECTIFIER), GT 150 W BUT LT=500 W | $24.3M | 16.71% | $3.3M |
| 8504409520 | POWER SUPPLIES (RECTIFIER), GT 50 W BUT LT=150 W | $24.1M | 18.41% | $3.4M |
| 8504406012 | POWER SUPPLS FR INC INTO ADP MACH/UNITS, 150-500W | $12.1M | 13.50% | $655K |
| 8504407007 | POWER SUPPLIES FOR ADP, 50W - 150W, NESOI | $10.7M | 15.83% | $1.6M |
| 8504407012 | POWER SUPPLIES FOR ADP MACHINES, 150-500W, NESOI | $10.3M | 13.15% | $1.1M |
| 8504407001 | POWER SUPPLIES FOR ADP, OUTPUT LT=50W, NESOI | $8.5M | 14.82% | $623K |
| 8504406007 | POWER SUPPLIES FOR PHYS INCORP INTO ADP,50W - 150W | $5.0M | 13.88% | $365K |
| 8504406001 | POWER SUPPLIES FOR PHYS INCORP INTO ADP, LT= 50 W | $3.4M | 14.85% | $461K |
STATIC CONVERTERS, NESOI
INVERTERS (STATIC CONVERTERS)
POWR SUPPLS FR INC INTO ADP MACH/UNITS, GT 500 W
STATIC CONVERTERS FOR TELECOMMUNICATION APPARATUS
POWER SUPPLIES FOR ADP, POWER GT 500W, NESOI
RECTIFIERS & RECTIFYING APPARATUS, NESOI
POWER SUPPLIES (RECTIFIER) GT 500 W
SPEED DIRVEN CONTROLERS FOR ELECTRIC MOTORS
POWER SUPPLIES (RECTIFIER) POWER OUTPUT LT= 50 W
POWER SUPPLIES(RECTIFIER), GT 150 W BUT LT=500 W
POWER SUPPLIES (RECTIFIER), GT 50 W BUT LT=150 W
POWER SUPPLS FR INC INTO ADP MACH/UNITS, 150-500W
POWER SUPPLIES FOR ADP, 50W - 150W, NESOI
POWER SUPPLIES FOR ADP MACHINES, 150-500W, NESOI
POWER SUPPLIES FOR ADP, OUTPUT LT=50W, NESOI
POWER SUPPLIES FOR PHYS INCORP INTO ADP,50W - 150W
POWER SUPPLIES FOR PHYS INCORP INTO ADP, LT= 50 W
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8504409570 | INVERTERS (STATIC CONVERTERS) | $111.6M |
| 8504409585 | STATIC CONVERTERS, NESOI | $95.1M |
| 8504409540 | POWER SUPPLIES (RECTIFIER) GT 500 W | $86.2M |
| 8504404000 | SPEED DRIVE CONTROLLERS FOR ELECTRIC MOTORS | $75.7M |
| 8504406018 | POWR SUPPLS FR INC INTO ADP MACH/UNITS, GT 500 W | $51.3M |
| 8504409550 | RECTIFIERS & RECTIFYING APPARATUS, NESOI | $27.2M |
| 8504408500 | STATIC CONVERTERS FOR TELECOMMUNICATION APPARATUS | $25.8M |
| 8504409510 | POWER SUPPLIES (RECTIFIER) POWER OUTPUT LT= 50 W | $20.0M |
| 8504409530 | POWER SUPPLIES(RECTIFIER), GT 150 W BUT LT=500 W | $17.7M |
| 8504407018 | POWER SUPPLIES FOR ADP, POWER GT 500W, NESOI | $17.4M |
| 8504409520 | POWER SUPPLIES (RECTIFIER), GT 50 W BUT LT=150 W | $16.4M |
| 8504406012 | POWER SUPPLS FR INC INTO ADP MACH/UNITS, 150-500W | $11.3M |
| 8504406001 | POWER SUPPLIES FOR PHYS INCORP INTO ADP, LT= 50 W | $6.6M |
| 8504407001 | POWER SUPPLIES FOR ADP, OUTPUT LT=50W, NESOI | $5.9M |
| 8504407007 | POWER SUPPLIES FOR ADP, 50W - 150W, NESOI | $1.9M |
| 8504406007 | POWER SUPPLIES FOR PHYS INCORP INTO ADP,50W - 150W | $1.9M |
| 8504407012 | POWER SUPPLIES FOR ADP MACHINES, 150-500W, NESOI | $1.6M |
INVERTERS (STATIC CONVERTERS)
122.8K no
STATIC CONVERTERS, NESOI
2.2M no
POWER SUPPLIES (RECTIFIER) GT 500 W
52.3K no
SPEED DRIVE CONTROLLERS FOR ELECTRIC MOTORS
310.9K no
POWR SUPPLS FR INC INTO ADP MACH/UNITS, GT 500 W
320.8K no
RECTIFIERS & RECTIFYING APPARATUS, NESOI
317.3K no
STATIC CONVERTERS FOR TELECOMMUNICATION APPARATUS
126.4K no
POWER SUPPLIES (RECTIFIER) POWER OUTPUT LT= 50 W
174.1K no
POWER SUPPLIES(RECTIFIER), GT 150 W BUT LT=500 W
79.6K no
POWER SUPPLIES FOR ADP, POWER GT 500W, NESOI
24.5K no
POWER SUPPLIES (RECTIFIER), GT 50 W BUT LT=150 W
41.0K no
POWER SUPPLS FR INC INTO ADP MACH/UNITS, 150-500W
23.2K no
POWER SUPPLIES FOR PHYS INCORP INTO ADP, LT= 50 W
14.3K no
POWER SUPPLIES FOR ADP, OUTPUT LT=50W, NESOI
73.3K no
POWER SUPPLIES FOR ADP, 50W - 150W, NESOI
9.2K no
POWER SUPPLIES FOR PHYS INCORP INTO ADP,50W - 150W
8.4K no
POWER SUPPLIES FOR ADP MACHINES, 150-500W, NESOI
5.6K no
LITHIUM ION BATTERIES
HS 850760
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $383.1M | $92.5M | -$290.6M |
| Texas | $203.3M | $117.5M | -$85.9M |
| Kentucky | $162.9M | $9.5M | -$153.4M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES, CA | $295.7M | -- | -$295.7M |
| CHICAGO, IL | $209.4M | $32.2M | -$177.2M |
| HOUSTON, TX | $128.7M | $39.1M | -$89.6M |