ETL

1. Certification Overview

ETL stands for Electrical Testing Laboratories, founded by Thomas Edison in 1896. It is recognized by OSHA, the US Occupational Safety and Health Administration, as a Nationally Recognized Testing Laboratory (NRTL). After more than 100 years, the ETL mark is widely recognized by major North American retailers and enjoys a reputation comparable to UL. The North American market has advanced and comprehensive testing standards and demanding certification requirements. An ETL mark on an electrical, mechanical or electromechanical product indicates that it has been tested to the relevant industry standards.

2. Certification Mark

3. Product Scope

Electrical, Electronic, Mechanical or Electromechanical Products

4. Certification Standards

5. Test Items

1. Input Testing

2. Temperature Rise Testing

3. Impact / Drop Testing

4. Glow-Wire / Needle Flame Testing

5. Ball Pressure Testing

6. Limited Power Source (LPS) Testing

7. Touch Current Testing

8. Grounding Impedance Testing

9. Constant Temperature and Humidity Testing

10. Vibration Testing and More

6. Required Documents

1. Critical Component List (CDF)

2. Schematic Diagram

3.PCB Layout

4. Label / Nameplate

5. Transformer and Inductor Specifications

6. Model List / Differences Table

7. Product Operating or Installation Instructions

7. Certification Process

1. Submit the application form;

2. Send samples to the laboratory;

3. The laboratory tests the samples;

4. After testing, submit the DS and draft report to ITS for review;

5. Factory inspection (required for the initial application);

6. The certification body issues the ETL certificate after approval.

8. Certification Timeline & Validity

ETL certification normally takes 3–4 weeks. Expedited service is available for an additional fee.

9. Factory Inspection

First-time ETL applicants must complete a factory inspection before receiving the certificate. This verifies product consistency and correct use of the ETL logo. Unscheduled follow-up factory inspections take place each quarter. In addition to inspection fees, quarterly certification license fees are payable.