BS EN 60669-2-3 is a British standard as a part of the IEC 60669 series that applies to time-delay switches (hereinafter referred to as TDS) with a rated voltage not exceeding 440 V and a rated current not exceeding 63 A, intended for household and similar fixed electrical installations, either indoors or outdoors, operated by hand and/or by remote control. TDS are provided with a time-delay device operated by mechanical, thermal, pneumatic, hydraulic, or electrical means or by a combination of them.
Electronic TDS are within the scope of IEC 60669-2-1. TDS including only passive components such as resistors, capacitors, PTC and NTC components, and printed wiring boards are not considered to be electronic TDS.
BS EN 60669-2-3 on time delay switches for household and electrical installations is useful for:
Test and certification laboratories
BS EN 60669-2-3 provides its users with guidelines for classification, marking, protection against electric shock, provision for earthing, and test methods to assess insulation resistance, electric strength, and mechanical strength. Using BS EN 60669-2-3 guidelines ensures safety and protection, reliability, durability, and quality assurance for longer service life.
BS EN 60669-2-3:2006 supersedes EN 60669-2-3:1997, which is withdrawn. BS EN 60669-2-3:2006 includes some technical changes with respect to EN 60669-2-3:1997. These include:
(see BS EN 60669-2-1)
Introduction of requirements for SELV/PELV
EN 60669-2-3:2006
IEC 60669-2-3:2006
IEC 61558-2-5:2010