GRI PB-2020-T-B 3/8" Diamete Plunger Switch with Terminals, 10W, 200VDC, 0.50A, Closed Loop, N/O, A, Brown

Protect small openings and discrete access points with the George Risk Industries PB-2020 plunger switch — a compact, robust solution engineered for residential security and monitoring. The PB-2020-T-B packs an adjustable screw plunger into a 3/8-inch diameter housing so it fits vinyl-extruded and custom window frames where space is limited. Installers benefit from flexible wiring: choose factory-fitted 12-inch 22AWG leads or the terminal block option for clean connections to alarm control panels and surveillance systems.

Designed as a closed-loop, normally open contact, this plunger switch supports signals up to 200VDC and 0.50A, giving dependable performance for intrusion detection and integration with access control or monitoring platforms. The press-to-fit single-hole mounting simplifies installation and reduces labor time on retrofit projects. Backed by a lifetime warranty, the PB-2020-T-B helps lower long-term service costs while maintaining high reliability.

Ideal for window and door sensors, perimeter monitoring, and discrete surveillance installations — choose the PB-2020-T-B for a compact, professional-grade security switch. Contact us for custom lead lengths or to place an order.

• Secure narrow or custom windows with a compact plunger that hides in tight profiles
• Adjustable screw plunger and 3/8-inch diameter deliver precise, repeatable activation
• Accepts 12-inch 22AWG leads or screw terminals for fast integration with alarm panels
• Closed-loop N/O contact rated for monitoring up to 200VDC, 0.50A for reliable surveillance inputs
• Lifetime warranty ensures long-term performance and minimal maintenance for residential security