Key switch definition
Key switch means a commercially available secure electric switch openable by a secure and common key carried by the Fire and/or Police Department. The key switch is to be supplied by the building owner and operates electric doors or gates for use by emergency services to access alarm systems and the bulk of the interior of the building or complex. Key switches must match current switches in use in the community.
Key switch means an electrical switch that uses the same security key code adopted by the Fire Department and used for emergency access to gated communities, electrically operated doors, and industrial gated areas. It can also control emergency power shutoff systems.