IEC 60335-2-110:2013

Overview

IEC 60335-2-110:2013 (consolidated with Amendment 1) is the IEC particular standard for the safety of commercial microwave appliances that use open‑ended applicators for direct treatment of loads. It supplements and modifies the general requirements in IEC 60335-1:2010 and applies to appliances with rated voltages up to 250 V (single‑phase phase‑to‑neutral) and 480 V for other supplies. The standard covers appliances incorporating open-ended insertion applicators and contacting applicators (both large‑area and small‑area).

Key topics and requirements

The standard addresses safety and test requirements specific to microwave applicator equipment, including:

• Applicator types covered
  • Insertion applicator - typically for moisture removal via insertion into holes (floor, wall, ceiling).
  • Large-area contacting applicator - typically for drying large surfaces (floors, walls, ceilings).
  • Small-area contacting applicator - typically for paint removal and spot‑heating.
• Safety objectives and scope - radiation, electrical, mechanical, thermal and fire hazards for commercial microwave appliances.
• Construction and protection - requirements for barriers, interlocks and protection against access to microwave‑containing regions.
• Testing requirements - procedures for microwave leakage measurement, endurance, abnormal operation, moisture resistance and electrical strength.
• Marking and instructions - mandatory labeling, user and service instructions specific to applicator use and hazards.
• Special clauses - annexes and figures provide test arrangements (e.g., microwave leakage measurement, interlock concealment test rod) and rationales for barrier and leakage tests.

Applications and who uses this standard

IEC 60335-2-110 is essential for stakeholders involved with commercial microwave equipment design, manufacture, testing and procurement:

• Manufacturers of commercial microwave applicators (insertion and contacting types) - to design compliant products.
• Test laboratories and certification bodies - to develop test programs for safety certification and type approval.
• Safety and compliance engineers - to assess conformity with electrical, thermal and radiation safety requirements.
• Specifiers and procurement teams - to include safety criteria in purchasing and installation contracts.
• Service and maintenance personnel - to follow safety‑related instructions and understand interlock and barrier requirements.

Related standards

• IEC 60335-1:2010 - General requirements for the safety of household and similar electrical appliances (to be read in conjunction with Part 2-110).
• Other IEC/ISO wiring and installation rules may be referenced for compatibility with national wiring regulations.

Keywords: IEC 60335-2-110, commercial microwave appliance, insertion applicator, contacting applicator, microwave leakage, safety standard, applicator safety.