NAICS Code 335311

NAICS 335311

NAICS Code 335311 – Power, Distribution, and Specialty Transformer Manufacturing

Definition of NAICS Code 335311: This U.S. industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transformers in this industry vary (e.g., step up or step down) voltage but do not convert alternating to direct or direct to alternating current.

  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Illustrative Examples of NAICS 335311

What are some examples of this code? The bulleted items below are illustrative examples of this classification.

  • Distribution transformers, electric, manufacturing
  • Fluorescent ballasts (i.e., transformers) manufacturing
  • Substation transformers, electric power distribution, manufacturing
  • Transmission and distribution voltage regulators manufacturing

Cross Reference Guide for Code 335311

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

  • Establishments primarily engaged in manufacturing electronic component-type transformers are classified in U.S. Industry NAICS 334416, Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing.

Other Index Entries for NAICS 335311

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Airport lighting transformers manufacturing
  • Arc-welding transformers, separate solid-state, manufacturing
  • Autotransformers for switchboards (except telephone switchboards) manufacturing
  • Autotransformers manufacturing
  • Ballasts (i.e., transformers) manufacturing
  • Boosters, feeder voltage (i.e., electrical transformers), manufacturing
  • Burner ignition transformers manufacturing
  • Control transformers manufacturing
  • Current limiting reactors, electrical, manufacturing
  • Distribution transformers, electric, manufacturing
  • Electric furnace transformers manufacturing
  • Feeder voltage regulators and boosters (i.e., electrical transformers) manufacturing
  • Fluorescent ballasts (i.e., transformers) manufacturing
  • Fluorescent lighting transformers manufacturing
  • Generator voltage regulators, electric induction and step-type (except engine electrical equipment), manufacturing
  • Instrument transformers (except complete instruments) for metering or protective relaying use manufacturing
  • Isolation transformers manufacturing
  • Lamp ballasts manufacturing
  • Lighting transformers manufacturing
  • Lighting transformers, street and airport, manufacturing
  • Line voltage regulators (i.e., electric transformers) manufacturing
  • Luminous tube transformers manufacturing
  • Machine tool transformers manufacturing
  • Power transformers, electric, manufacturing
  • Regulating transformers, power system-type, manufacturing
  • Regulators (i.e., electric transformers), feeder voltage, manufacturing
  • Saturable transformers manufacturing
  • Signaling transformers, electric, manufacturing
  • Specialty transformers, electric, manufacturing
  • Substation transformers, electric power distribution, manufacturing
  • Transformers, electric power, manufacturing
  • Transformers, ignition, for use on domestic fuel burners, manufacturing
  • Transformers, reactor, manufacturing
  • Transformers, separate solid-state arc-welding, manufacturing
  • Transmission and distribution voltage regulators manufacturing
  • Voltage regulating transformers, electric power, manufacturing
  • Voltage regulators, transmission and distribution, manufacturing
Suggested Insurance Conversion Table for NAICS Code 335311

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 3643NAICS 335311
  • CA WC: 3643
  • DE WC: 0474
  • PA WC: 474
  • MI WC: 3643
  • NJ WC: 3643
  • NY WC: 3643
  • WY WC: 335311
  • GL: 52440
  • SIC: 3612

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 335311 is based on our research using the resources cited above.

Correlating Code Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 31-33: Manufacturing
  • Subsector 335: Electrical Equipment, Appliance, and Component Manufacturing
  • Industry Group 3353: Electrical Equipment Manufacturing
  • Industry 33531: Electrical Equipment Manufacturing
  • 6 Digit Code(s) NAICS 335311: Power, Distribution, and Specialty Transformer Manufacturing
  • 6 Digit Code(s) NAICS 335312: Motor and Generator Manufacturing
  • 6 Digit Code(s) NAICS 335313: Switchgear and Switchboard Apparatus Manufacturing
  • 6 Digit Code(s) NAICS 335314: Relay and Industrial Control Manufacturing
Other helpful NAICS Downloads

View the download page for the material below.

NAICS Code 335311