Potter RSW-21A Plunger Switch

Designed for dependable detection in security and monitoring applications, the Potter RSW-21A Plunger Switch delivers precise, long-lasting performance where reliability matters. From access control and door monitoring to perimeter surveillance and alarm systems, this Potter Electric Signal, LLC plunger switch uses a hardened 5/8" stainless-steel roller ball to provide consistent contact closure and resist wear. The compact recessed-mount design fits a standard 3/4" drilled hole for discreet, tamper-resistant installation. With a 6.2mm travel and a focused 3mm operating stroke at 400–500g actuation force, the RSW-21A ensures repeatable signaling and reduces nuisance trips in high-cycle environments. Pre-wired #22 leads (25" length) and a normally-open contact make wiring straightforward for integration into security panels, surveillance controllers, and monitoring systems. RoHS-compliant and built for longevity, this plunger switch is ideal for installers and system integrators who need a robust, low-voltage sensing solution. Specify the RSW-21A for reliable, low-maintenance monitoring — contact us or add it to your next security or surveillance project.

• Reliable actuation for security and monitoring circuits using a hardened stainless-steel roller ball, reducing false triggers and maintenance
• Compact recessed-mount design fits a 3/4" drilled hole for clean, tamper-resistant installations in access control and surveillance systems
• Short 3mm operating stroke with consistent 400–500g force provides repeatable performance in high-use environments
• Durable stainless-steel construction resists wear and corrosion, extending service life in industrial and commercial settings
• Pre-wired #22 leads (25") and a normally-open contact simplify installation and integration with alarm panels, controllers, and monitoring equipment