Styles D and F—Style A-G switches have positive-force, normally closed contacts that will open a circuit when the switch is actuated even if a spring fails or the contacts stick.

Style J—Style J switches have extra safety controls to prevent you from getting trapped next to running machinery. They actuate with the turn of a portable key. Bring the key when you enter an enclosure to ensure machinery won’t start while you’re inside, even if the door closes behind you. As an added fail-safe, a rear release button lets you cut power from inside of enclosures if needed. These switches have light-up indicators that show when they're properly installed and whether they're actuated.

IP67 Enclosure Rating—IP67 rated switches protect against temporary submersion.

Key Included—All switches require an actuator key, but not all include one—check whether you need to pick out a separate actuator key. For some switch styles, you can also select the mounting orientation of the key.