GRI PB-100T-B PB Series Push Button Plunger Switch, No Flange Closed Loop, Brown

Built for reliable security and monitoring, the George Risk Industries PB-100T-B PB Series Push Button Plunger Switch provides long-life, low-maintenance contact sensing for access control, alarm and surveillance systems. This plunger-actuated reed switch delivers hermetically sealed contacts to resist sticking, corrosion and environmental contamination—minimizing downtime and false alarms. The PB-100 is a 9/16" press-fit design that retrofits quickly into existing installations without re-drilling, while the adjustable screw plunger (.270" total travel, .090" pre-travel ±.040") lets technicians fine-tune actuation for consistent performance. Standard 12" 22AWG leads (or optional screw terminals) streamline wiring to control panels, sensors and monitoring devices. Packaged in quantities of 10 and backed by a limited lifetime warranty, the PB-100T-B is ideal for commercial security, perimeter monitoring, and surveillance door contacts where reliability and serviceability matter. Choose George Risk Industries for a rugged, field-proven plunger switch that reduces maintenance and accelerates installation—order now or contact us for custom leads, longer cables, or built-in E.O.L. components.

• Long-lasting, maintenance-free reed contact: hermetically sealed design prevents sticking or freezing, reducing false alarms and service calls.
• Quick retrofit installation: 9/16" press-fit PB-100 design installs without re-drilling, saving time on door, gate or enclosure upgrades.
• Precise actuation control: adjustable screw plunger with .270" total travel and .090" pre-travel (+/- .040) for reliable, repeatable switch points.
• Versatile wiring options: supplied with 12" 22AWG leads or available screw terminals to simplify integration with alarm, monitoring or access control systems.
• Built for security environments: US-made George Risk quality, included spacers/mounting hardware and optional E.O.L. resistors/diodes for easy system compatibility.