Harmonized System
U.S. imports of Automatic Circuit Breakers for Voltages Not Exceeding 1,000 V (HS 853620) totaled $250.6M in August 2026, imported from 68 countries.
Importers of Automatic Circuit Breakers for Voltages Not Exceeding 1,000 V paid $20.7M in duties in August 2026, an average duty rate of 8.28% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Automatic Circuit Breakers for Voltages Not Exceeding 1,000 V imports of $250.6M in August 2026 ran 14% above the year-to-date monthly average of $219.9M.
Last updated: August 2026 dataAutomatic circuit breakers rated at or below 1,000 V are essential protective devices in residential, commercial, and industrial electrical systems, and the US schedule separates molded-case designs (8536200020) from all other types (8536200040) — a distinction that aligns with UL and NEMA product certification categories relevant to US market access. Mexico is the leading supplier, reflecting deep integration with US electrical equipment manufacturers operating cross-border supply chains. Italian and German imports tend to represent higher-specification industrial-grade breakers, while Chinese-origin product is subject to Section 301 tariff exposure. Buyers should confirm that imported breakers carry the applicable UL listing or equivalent third-party certification required by US electrical codes before distribution.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
21.9K import shipments a month
While US Customs does not require a UL listing for import clearance, most US jurisdictions require circuit breakers installed in electrical systems to be listed by a Nationally Recognized Testing Laboratory (NRTL) such as UL, CSA, or ETL. Importers and distributors should verify that products carry the appropriate NRTL mark before offering them for sale, as non-listed breakers may be rejected by inspectors or distributors.
A molded-case circuit breaker (MCCB) is defined by its housing — the overcurrent protection mechanism is enclosed within a molded insulating case that forms an integral part of the device. Breakers that use a separate enclosure or frame, such as open-frame or insulated-case designs, would fall under the NESOI line (8536200040). Technical datasheets and product specifications are the primary documentation CBP uses to distinguish between the two subheadings.
Subheading 4 of 10 in heading 8536
Subheading 853620 · $250.6M of $1.6B
Trade Directory
List your company under HS 853620 — Automatic Circuit Breakers for Voltages Not Exceeding 1,000 V, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8536200020 | Automatic Circuit Breakers, Molded Case, Lt=1000 V | $217.2M | 7.88% | 61.56% | $17.1M |
| 8536200040 | Automatic Circuit Breakers Lt= 1000 V, NESOI | $32.7M | 10.99% | 83.69% | $3.6M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8536200020 | Automatic Circuit Breakers, Molded Case, Lt=1000 V | $80.8M |
| 8536200040 | Automatic Circuit Breakers Lt= 1000 V, NESOI | $29.4M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Mexico and Dominican Republic together supply 72% of it. China pays 38.6% duty; Mexico 3.9%.
customs district
destination
entry
rate provision · imports
32.7% enters free of duty; duty collected equals 8.28% of imports for consumption.
ImportsExports
Imports
$250.6MYoY · free account
Exports
$110.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.5B of Automatic Circuit Breakers for Voltages Not Exceeding 1,000 V and exported $1.1B.
Through August 2026. Source: U.S. Census Bureau.