UL 60335 is the mandatory safety testing standard system for household and similar electrical appliances in the U.S. and North American markets. It consists of two parts: UL 60335-1 (General Safety Requirements) and a series of UL 60335-2-xx (Particular Requirements for specific products). This standard covers core items such as electrical safety, mechanical structure, temperature rise limits, fire resistance and flame retardancy, and abnormal fault protection. It is the most common compliance admission basis for platforms like Amazon and Temu regarding small household appliances, heating appliances, and motor-operated appliances.
UL 60335-1: General safety requirements for household and similar electrical appliances (Mandatory)
UL 60335-2-xx: Particular requirements for specific products (Must be issued together for platform review)
1.Hair clippers / Shavers UL 60335-2-8
2.Refrigerators / Ice makers / Dehumidifiers UL 60335-2-24 / 2-40
3.Chargers / Battery adapters UL 60335-2-29
4.Hair dryers / Curling irons ul 859 (Still used in some scenarios; platforms are gradually transitioning to the 60335 system)
5.Air fryers / Ovens Corresponding heating-related Part 2 standards
6.Products with lithium batteries Usually supplemented by ul 1642 (Cell) + ul 2054 (Battery pack)
Warning: If you only get UL 60335-1 without Part 2, Amazon is highly likely to reject your review directly.
Provide:
1.Product name, model, voltage (e.g., 120V 60Hz), power
2.Function description (whether it heats, has a motor, is waterproof, or is wireless)
3.Internal structure schematic diagram
Laboratory Engineer Matching:
UL 60335-1 + Correct Part 2 + Additional standards (Battery / Wireless / fcc)
Outputs: Test item list, lead time, and quotation.
Usually Required:
1.Product specification sheet (in English)
2.Electrical schematic diagram, PCB layout diagram
3.BOM critical components list (motor, switch, thermostat, fuse, power cord, plastic enclosure)
4.Critical components certificates: Priority should be given to materials with UL Yellow Card / UL File Number
5.Nameplate label draft (including voltage, model, and warning text)
6.English user manual (including safety warnings)
7.Appearance photos, structural exploded view
8.Built-in battery: UL 1642 / UL 2054 reports
9.Platform information: ASIN (for Amazon review)
Conventional Sample Quantity:
1.Simple small appliances: 2–3 units
2.Motor-driven / High-power / Complex structures: 3–5 units
3.Destructive testing (locked-rotor, drop, needle-flame) will consume samples
Requirement: Must send mass-production versions; do not use prototype samples to cope with testing.
Core Testing Modules:
Electrical Safety
1.Hi-pot (Dielectric withstand) test
2.Insulation resistance
3.Leakage current
4.Ground continuity
5.Clearance and creepage distances
Thermal and Abnormal Tests (High-frequency failure points)
1.Full-load temperature rise
2.Motor locked-rotor
3.Thermostat failure simulation
4.Single-fault condition: No fire, no melting
Mechanical and Structural
1.Protection against electric shock
2.Enclosure strength
3.Isolation of moving parts
Fire Resistance and Flame Retardancy
1.Plastic enclosure ul 94 rating (Common requirement: V-0 / V-1)
2.Ball pressure test, needle-flame test
Markings and Manuals
1.Complete nameplate parameters
2.Compliant English safety warnings
The official report should include:
1.Laboratory ISO/IEC 17025 qualification page
2.Standard number and version
3.Sample photos, nameplate photos
4.Test data records
5.Critical components list
6.Conclusion: Pass
Amazon Back-end Path:
1.Compliance Request Upload Test Report PDF + Qualification Proof + Product Images
2.Ensure: Brand, model, and ASIN match the report character for character.
1.Simple products without rectification: 5–7 working days
2.Conventional household appliances: 7–15 working days
3.Complex / Multi-model / Requiring rectification: 3–4 weeks
4.Expedited service: 3–5 working days (Usually incurs an additional fee)
1.Product power and complexity
2.Presence of a motor, heating, or battery
3.Market Range Reference: Third-party ul test reports generally range between $1,350 and $4,500; complete UL certification requires separate annual fees.
You cannot "do it yourself." It must be sent to a third-party testing laboratory with ISO 17025 qualifications, and the laboratory will issue the report.
Yes. CE is the European Union system, while UL is the North American safety standard system. Their testing logic differs, and the Amazon U.S. marketplace does not accept CE as a substitute for UL.
The report itself is valid long-term, but platforms usually require it to be issued within 1 year. If the product structure changes or critical materials are replaced, retesting or supplementary evaluation is required.
No. Before completing the full ul certification process, it is strictly prohibited to print the UL logo on the product or packaging, otherwise it constitutes infringement.
Not enough. It is usually necessary to match:
UL 1642 (Cell)
UL 2054 (Battery pack)
Wireless functions additionally require FCC consideration
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