The Cat. No. 502A and 503A electric door switches are available as either normally open or normally closed units. The switch mounts using the mounting holes on 3 1/4" (83mm) centers.

The Cat. No. 501A-G may be wired either normally open or normally closed (shipped normally closed). The switch mounts using the mounting holes on 3" (76 mm) centers.

Use for closet doors, dark rooms, and walk-in refrigerators. May be used on either sliding or hinged doors.

• All purpose electric door switch


• Normally open or normally closed switches available


• 501A-G may be wired either normally open or normally closed


• Painted gold faceplate

Download the 503A specification sheet in *.pdf format