Tamper resistant key operated switch for secure control of equipment. Requires a key to turn on or off, reducing unauthorized use and accidental starts. Multiple contact options (SPST, SPDT, DPDT) are available for flexible configurations to match your wiring needs. Durable housing choices include metal or reinforced plastic, with front panel mounting and multiple size options to fit your control panel. Reliable performance for demanding environments, offering smooth actuation and long service life with consistent contact behavior. Key options include key retention and master key variants to support supervised access and multiple operators. Broad compatibility with typical low to medium voltage control circuits and standard panel wiring practices. Use scenarios: Start/stop control on manufacturing machinery to ensure authorized operation. Security switch for vending machines or kiosks to deter tampering. Lockout point on test benches, labs, or educational equipment to enable safe maintenance.