BEST 1W7A1 Electric Switch Lock with SPDT Configuration and Key Position ControlProfessional Electric Switch Lock SolutionThe BEST 1W7A1 Electric Switch Lock delivers reliable keyed electrical control with SPDT (Single Pole-Double Throw) configuration and maintained switch action. This Grade 1 heavy-duty unit operates from 28 VDC to 250 VAC with contact ratings up to 10.1 amps resistive, featuring a Double D lock cylinder design that prevents slipping and turning for secure operation.Professional Features & BenefitsSPDT Switch Configuration: Single pole-double throw design with maintained action provides versatile electrical control options for various applications.Wide Voltage Range: Operates from 28 VDC to 250 VAC with multiple contact ratings including 28 VDC at 10 amps resistive and 125/250 VAC at 10.1 amps resistive.Double D Lock Cylinder: Prevents slipping and turning for secure key operation and reliable electrical switching.Extreme Temperature Rating: Operating temperature range from -85F to +257F (-65 to +125C) for demanding environmental conditions.Horsepower Rating: 125 VAC, 1/4 HP rating suitable for motor control applications.BEST Interchangeable Core Compatibility: Units may be keyed into any BEST system for master key flexibility and security management.UL Recognition: All switches are UL recognized or listed for code compliance and safety assurance.Grade 1 Heavy-Duty Construction: Commercial-grade durability designed for demanding electrical control applications.Technical SpecificationsCommercial/Residential: CommercialDepartment: Door HardwareDuty Level: Heavy DutyElectronic: YesGrade: Grade 1Keyed: YesProduct Category: Mechanical LocksProduct Group: Mechanical LocksProduct Subgroup: Bored LocksetsProduct Type: Electric Switch LockSeries: 1W SeriesSubcategory: Bored LocksetsInstallation & OperationVerify electrical requirements match available power supply. Confirm voltage (28 VDC to 250 VAC) and current capacity before proceeding.Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.Configure operational settings including SPDT switch configuration per application requirements.Restore power and test all functions including normal operation, switch action, and integration with connected systems.Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.Professional ApplicationsCommercial Building Security SystemsIndustrial Control Panel IntegrationElectrical Equipment Access ControlMachine and Equipment SwitchingEmergency System ControlsProcess Control ApplicationsFacility Management SystemsWhy Choose BEST Quality?BEST 1W7A1 Electric Switch Locks deliver professional-grade reliability with Grade 1 heavy-duty construction and UL recognition for demanding commercial applications. The Double D lock cylinder design and extreme temperature rating from -85F to +257F ensure dependable performance in challenging environments. Engineered for versatile electrical control where secure keyed operation and reliable switching are essential.