Normally open (NO) contacts keep the circuit open until the button is pressed, while normally closed (NC) contacts keep the circuit closed until the button is pressed or the switch is activated. During installation, connect the configuration that matches the access control or switching system’s input logic, such as an NO circuit for an exit request or an NC circuit for monitoring continuity and detecting an interruption.

Mount plate-style switches in a compatible standard single-gang box, or use a slimline box or footprint when the installation requires a more compact form factor, and account for the switch’s IP65 weatherproof construction in outdoor applications. Wire the normally open and normally closed contacts to the access-control or exit circuit, verify the selected switch’s contact rating, and connect illuminated versions to 12 V DC or 24 V DC as specified, using the included resistor when required.

Illuminated weatherproof push button switches use a visible perimeter LED to help users locate the control in outdoor access areas, including low-light conditions. Field-selectable colors, stainless-steel construction, and clearly marked EXIT and SALIDA labels can support user guidance while the weather-resistant design suits outdoor installations.

Weatherproof push button switches typically use normally open (NO) and normally closed (NC) contacts to connect to access control inputs, request-to-exit circuits, or relay modules. When pressed, the switch can signal a controller to activate a door release, gate operator, alarm input, or other low-voltage equipment, with wiring and contact ratings selected for the specific system.