Category Archives: Blog

Keys and Switches

Keys and Switches

Products & standards Switch-disconnectors/isolators: IEC 60947-3; load-break & maintenance isolators, door-interlocked Key interlocks / trapped-key systems: ISO 14119; enforce safe sequences on MCCs/switchgear Emergency stops: ISO 13850, IEC 60204-1; twist-release/mushroom head, illuminated options Pushbuttons & pilot lights: IEC 60947-5-1; IP66/67, Type 4/4X fronts Selector/cam switches: multi-position, maintained/spring return Limit & position switches, safety interlocks: IEC […]