CAN CSA E60335-2-4-13 (2018): Safety Requirements for Household Spin Extractors – Canadian Adoption of IEC 60335-2-4

Scope of CAN CSA E60335-2-4-13 (2018)

CAN CSA E60335-2-4-13 (2018) is the Canadian adoption of the international standard IEC 60335-2-4:2013 (Edition 13) — Household and similar electrical appliances – Safety – Part 2-4: Particular requirements for spin extractors. This harmonized standard specifies safety requirements for electric spin extractors used in household and similar environments, including machines that combine washing and spin extraction functions.

The standard covers spin extractors with a rated voltage not exceeding 250 V for single-phase appliances and 480 V for other appliances. It applies to appliances intended for indoor household use, as well as for use in communal laundry rooms, hotels, and similar commercial settings where the appliance may be used by non-expert users. Additional requirements are provided for appliances that incorporate heating elements for drying (spin dryers with integrated heaters).

Importantly, CAN CSA E60335-2-4-13 does not cover:

• Appliances intended exclusively for industrial or professional use
• Appliances intended for use in locations with special conditions (e.g., corrosive or explosive atmospheres)
• Centrifuges for food processing or laboratories
• Washing machines without spin extraction function (covered by Part 2-7)

The standard is intended to be used in conjunction with the general requirements of CAN CSA E60335-1 (adoption of IEC 60335-1), which provides the baseline safety framework. All clauses of Part 1 apply unless modified or supplemented by this Part 2-4.

Technical Requirements and Testing Protocols

CAN CSA E60335-2-4-13 introduces several specific technical requirements and modifications that go beyond the general requirements of Part 1. These address hazards unique to spin extractors, including mechanical hazards from rotating baskets, water ingress, and unbalanced loads.

Mechanical Strength and Guarding

The standard mandates that spin extractors must have adequate guarding to prevent access to moving parts during operation. The lid or door must be interlocked to prevent opening when the basket is rotating at a speed exceeding 60 revolutions per minute. An interlock switch must act directly on the motor circuit or be part of a control system with at least two independent switching devices. Compliance is verified through endurance testing of interlocks (10,000 cycles) and mechanical strength tests on the lid and locking mechanisms.

Water and Moisture Resistance

Because spin extractors operate in wet environments, they must meet enhanced ingress protection (IP) requirements. Enclosures must be tested for resistance to water splashes and drips, and drainage holes must be designed to prevent water ingress into live parts. The standard specifies dielectric strength and insulation resistance tests after exposure to moisture.

Balancing and Vibration

Unbalanced loads are a key safety concern. The standard requires that appliances be designed to handle a specified degree of imbalance without mechanical instability or excessive vibration. A test load with a defined mass distribution (e.g., 10 g off-balance per kilogram of dry cloth capacity) is used during type testing. The appliance must remain stable on a horizontal surface and must not displace more than 2 mm at any point during the spin cycle.

Electrical, Thermal, and Abnormal Operation

The standard also defines additional criteria for:

• Locked rotor and overload protection: Motor impedance or thermal protectors must prevent winding temperatures from exceeding limits under locked-rotor conditions.
• Heating elements (if present): Surface temperatures and thermal cutouts for drying heaters must meet Part 1 clauses with modifications for textiles.
• Capacitor discharge: Capacitors with a capacitance above 0.1 µF must be discharged to below 34 V within one second after disconnection.
• Component failure: The appliance must not become hazardous under single-fault conditions, including electronic circuit failures.

Compliance and Certification Process

In Canada, compliance with CAN CSA E60335-2-4-13 is typically required for the safety certification of household spin extractors by accredited certification bodies such as CSA Group, UL, or Intertek. The certification process generally follows these steps:

1. Determination of applicable standards: Verify that the product’s construction and ratings fall within the scope of CAN CSA E60335-2-4-13 and the relevant edition of CAN CSA E60335-1.
2. Submission of technical documentation: Including circuit diagrams, component lists, material specifications, and a critical safety components list (e.g., thermostats, motors, interlocks).
3. Type testing: The appliance is subjected to the full suite of tests defined in the standard. Tests are usually performed in an ISO 17025 accredited laboratory.
4. Factory inspection: Certification bodies require initial and periodic inspections of the manufacturing facility to verify consistent production of compliant units.
5. Certification and marking: Upon successful completion, the product is certified and may bear the recognized certification mark (e.g., CSA Mark) along with the standard reference.

It is important to note that Canadian regulations may require compliance with other standards in addition to CAN CSA E60335-2-4-13. For example, energy efficiency (NRCan) and electromagnetic compatibility (ICES-003) may also apply.

Implementation Highlights and Industry Impact

CAN CSA E60335-2-4-13 aligns Canadian requirements with the international IEC framework, facilitating trade and promoting a consistent level of safety across jurisdictions. Manufacturers designing products for both the Canadian and international markets benefit from the harmonized approach, as the Canadian edition is a direct adoption with possible national deviations (clearly indicated in the document).

Key implementation considerations include:

• Interlock architecture: Designers should opt for dual-channel interlock circuits with redundant contacts to pass the fault condition tests of Clause 20 (Part 2-4). Mechanical interlocks that rely on gravity or spring action must survive 10,000 cycles without lubrication degradation.
• Vibration control: Active or passive balancing systems can help meet imbalance requirements, but the control algorithm must be part of the safety evaluation. Software-related safety functions require validation per CAN CSA E60730-1.
• Material selection: Plastic basket hubs and water inlet valves must be rated for the thermal and chemical environments encountered during a typical wash cycle (including bleach and detergent attack).
• Moisture barriers: Drainage channels must be designed to prevent standing water near electrical terminals. The standard’s IPX4 test (vertical splashing) often necessitates gasketed joints and drip loops on wiring.

The adoption of CAN CSA E60335-2-4-13 also impacts existing certifications. Appliances certified to earlier editions (e.g., CAN CSA E60335-2-4-12) may be subject to transition periods defined by CSA Group. Manufacturers should monitor the standards update cycle to plan for re-testing or design modifications.

Article prepared for technical reference purposes. Standard revision year 2018; this content reflects knowledge as of 2026.