GRIโs recessed switches are most versatile for a variety of applications, but the switch and magnet installed, should never form a โTโ configuration.
When the application calls for a wide gap switch, using a bare magnet, keep in mind that GRIโs bare magnets are installed with the painted end towards the switch as they are polarity sensitive.
When protecting steel doors, use the GRI PA-75 collars with our wide gap switch.
The GRI 400 series of commercial and industrial switch sets incorporates hidden terminals, inset into the recessed back to provide tamper resistant installations.
The unit has a regular gap of 1 1/2 which covers the various types of steel door and frame conditions found at every commercial and industrial site.
Spacers and mounting hardware are included with the set. Switches, magnets and mounting brackets are also available separately