IEC 60601, IEC 60335, and IEC 61558 are all safety standards developed by the International Electrotechnical Commission (IEC).

While IEC 60601 and IEC 60335 are specific to different types of electrical equipment, IEC 61558 is related to safety requirements for transformers, power supplies, reactors, and similar devices.

Here are the key differences between IEC 60601 and IEC 60335:

IEC 60601: This standard, titled "Medical electrical equipment," outlines safety requirements for electrical devices used in medical settings. It covers a wide range of medical equipment, including diagnostic instruments, surgical tools, patient monitors, and other electronic devices that are intended for use on humans. The standard is designed to ensure the safety of patients, caregivers, and users of medical equipment.

IEC 60335: This standard, titled "Safety of household and similar electrical appliances," applies to electrical appliances used in non-medical settings such as homes, offices, and commercial environments. It covers a broad range of household appliances, including refrigerators, washing machines, vacuum cleaners, electric heaters, and audio/video equipment. The aim of IEC 60335 is to ensure the safety of users, particularly in domestic environments.

In summary, IEC 60601 focuses specifically on safety requirements for medical electrical equipment, while IEC 60335 addresses the safety of household and similar electrical appliances. These standards have different scopes and cover different types of electrical devices, reflecting the specific safety concerns associated with their respective applications.

Please note that further details and specific requirements within each standard can vary depending on the edition and amendments in effect.