Honeywell GI-PBF2020WH Push Button Plunger Switch with Flange

The Honeywell/GRI GI‑PBF2020WH Push Button Plunger Switch with Flange is a compact, high‑quality plunger‑type push button switch designed for intrusion detection and security applications. It features a slim 3/8″ diameter white plunger housed in a threaded body with a screw‑down flange, allowing secure panel mounting with just one drill hole. The adjustable screw plunger ensures precise actuation distance and closure. The switch is a normally‑open, closed‑loop reed form designed to reliably detect door or window movement, triggering when pressed inward. Rated for up to 10 W and 200 VDC (0.5 A max), it supports a wide range of control panel inputs. Installers appreciate the flexibility of either 12″ 22 AWG lead wires or screw terminal options. Built in the USA and backed by a lifetime warranty, it delivers solid performance for residential or light commercial security systems. Its small profile and durable design make it ideal for discreet use in tight spaces like door frames or window sashes.