CAN/CSA E60335-2-26:13 (R2018) – Safety of Household Sewing Machines: Technical Requirements and Compliance

CAN/CSA E60335-2-26:13 (R2018) is the Canadian adoption of the International Electrotechnical Commission (IEC) standard IEC 60335-2-26, which specifies particular safety requirements for household and similar electrical sewing machines. This standard is part of the broader IEC 60335 series covering the safety of electrical appliances for household use. It addresses hazards typical to sewing machines, including electrical shock, mechanical movement, and thermal risks. This article provides an in-depth analysis of the standard’s scope, key technical requirements, implementation considerations, and compliance pathways.

Scope and Applicability

CAN/CSA E60335-2-26:13 (R2018) applies to electric sewing machines for household and similar use, with a rated voltage not exceeding 250 V for single-phase or 480 V for three-phase appliances. It covers basic sewing machines, overlock (serger) machines, and similar electrically driven equipment intended for use in homes, non-industrial workshops, and small commercial settings. The standard also includes specific requirements for themachine’s control circuits, foot controllers, and lighting attachments. Excluded are industrial or heavy‑duty sewing machines not intended for general household use, which fall under separate standards (e.g., IEC 60335-2-34).

Key Technical Requirements

The standard establishes safety criteria organized into electrical, mechanical, and thermal categories. The most significant requirements are summarized below.

Electrical Safety

Electrical safety is addressed through protective earthing, insulation coordination, and leakage current limits. Key provisions include:

• Classification: Machines must be classified as Class I, Class II, or Class III based on protection against electric shock. Most household sewing machines are Class I (earthing required) or Class II (double insulation).
• Clearance and creepage distances: Minimum distances are specified for insulation between live parts and accessible conductive parts, depending on working voltage and pollution degree (typically 2 for enclosure).
• Dielectric strength: A high‑voltage test (typically 1250 V for basic insulation at rated voltage 220–240 V) must be applied for 1 s without breakdown.
• Leakage current: Under normal operating conditions, leakage current must not exceed 0.5 mA for Class II and 0.75 mA for Class I appliances.
• Power input and current: The measured input shall not deviate by more than 10% from the rated value under normal load.

Mechanical Hazards

Sewing machines present unique mechanical risks from rotating parts, reciprocating needles, and foot pedals. The standard requires guards, interlocks, or instruction‑based warnings for:

• Needle penetration hazard – the needle point must not be accessible during normal use unless the machine is off.
• Belt and pulley drives (if present) – must be enclosed or have guards with openings less than 8 mm.
• Foot controller – must not present a risk of trapping or crushing.
• Edge and moving parts – sharp edges, shearing points, and moving parts must be covered or positioned so that they cannot be touched during typical operation.

Stability: The machine must not tip when tilted at 15° in any direction, with and without a sewing load.

Thermal Protection

To prevent fire or skin burns, the standard limits surface temperatures. Key requirements include:

• Normal operation: Temperature rise on accessible surfaces (e.g., needle plate, arm) must not exceed predetermined values (e.g., 65 K for metal handholds).
• Abnormal operation: Under any reasonably foreseeable fault condition, the machine must be protected by a thermal cut‑out or a fuse. The maximum temperature at any point must not exceed 155 °C for insulation materials.
• Motor winding: The temperature rise of the motor winding (measured by resistance change) must not exceed 75 K for Class A insulation, 95 K for Class B, etc.

Implementation Highlights

When designing or certifying a sewing machine to CAN/CSA E60335-2-26:13 (R2018), consider the following practical aspects:

• Foot controller integration: The foot controller must be evaluated together with the machine. It is often treated as a separately certified component (e.g., to CSA C22.2 No. 308).
• Lighting and extra ports: Built‑in LEDs or sockets for sewing lights must comply with the standard’s requirements for attached appliances (e.g., lamp replacement instructions, thermal limits for the lamp enclosure).
• Marking and instructions: The machine must be permanently marked with the rated voltage, frequency, power consumption (or current), and model designation. The user manual must include warnings about the use of non‑original parts, the need for periodic lubrication (if applicable), and how to safely disconnect from the mains.
• Needle guard design: A transparent, hinged presser foot is often used to provide a guard that allows visibility while complying with the accessibility requirement. The guard should automatically cover the needle when the presser foot is lifted.
• EMC considerations (not in this standard): While CAN/CSA E60335-2-26 does not include electromagnetic compatibility, sewing machines must also comply with applicable EMC standards (e.g., CAN/CSA‑CISPR 14‑1).

Compliance and Certification Notes

To demonstrate compliance with CAN/CSA E60335-2-26:13 (R2018), manufacturers typically follow these steps:

1. Determine applicable clauses: The standard must be read alongside the general requirements of CAN/CSA E60335‑1 (adopted from IEC 60335‑1). The hyphen‑2‑26 document provides modifications and additions to that base standard.
2. Select test laboratory: Use a CSA‑accredited or ISO 17025‑recognized test facility experienced with the IEC 60335 series and Canadian deviations.
3. Type testing: Submit at least three representative samples for the required tests: leakage current, flash testing, abnormal operation, mechanical stability, temperature rise, and endurance.
4. Inspection and marking: The final product must bear the CSA certification mark or an equivalent accepted mark (e.g., cULus for the US) depending on distribution. Marking requirements are strictly enforced.
5. Manufacturing consistency: A factory inspection may be required for initial certification. Ongoing production must meet the same design specifications; changes must be evaluated.
6. Record keeping: Maintain documentation (test reports, engineering drawings, component certificates) for at least as long as the product is in distribution (typically 5 years after last sale).

Frequently Asked Questions

— Updated 2026. This article is for informational purposes and does not constitute legal advice.