Alinco Electric Sales 694 West Shore Drive
Acton, Maine 04001

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PBA Pushbutton Assemblies
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PBA 1000
Pedestian Pushbutton Specifications
U.S. Pat# 4187418
  
Overall Design and Construction
The pedestrian button assembly shall be of a cast aluminum, one piece type construction incorporating a heavy duty pushbutton switch, plaque with raised print legend and integral banding brackets. It shall be permanent mold sand casting constructed of 356-aliminum alloy.
Casting Design
The casting shall be approximately 13 1/4 " long with the extreme upper and lower segments molded to fit 3/4" steel banding. It shall also be possible to bolt the assembly to a mounting surface using two (2) holes that are in the center of the integral banding brackets. Directly below the upper integral bounding brackets shall be an integral plaque approximately 5" wide by 8" long. Cast into this plaque shall be a raised print legend taking up the full space of the plaque. Directly below the plaque shall be a cast a pushbutton switch housing of approximately 1 1/2" top radius with flat sides. The housing shall be of a sufficient depth to accomodate the pushbutton switch, and there shall be an overhang to prevent precipitation from affecting the pushbutton switch actuator. The center of the pushbutton switch housing shall be threaded 5/8" X 32 to accomodate the pushbutton switch to be screwed in from the rear. The pushbutton shall be mounted at a 3 degree angle to provide additional precipitation run off. Directly below this pushbutton switch housing shall be the lower integral mounting bracket. The rear of the casting shall be open to facilitate wiring and access to the pushbutton switch. The extreme upper and lower segments in the rear shall be either flat, to fit a flat mounting surface, or curved to fit a round pole. A wide variety or radius curvatures shall be availabe to fit different size poles. The casting and all features theron shall be of a one piece design.
Push Button Switch
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Pushbutton Switch Design
The pushbutton switch shall of the normallt off-momentary contact type with positive action feature. The switch shall be rated for 35 Amps at 12 Volts, or 20 Amps at 24 Volts. The switch contacts shall be composed of 90% silver and 10% cadmium oxide to minimize arcing and pitting on the contact surface. Two (2) 8-32 screws shall be provided as terminals to facilitate wiring. The body of the switch shall be of die cast aluminum and shall be approximately 1" in diameter. The upper body of the switch around the actuator shall have a 5/8" threaded collar to allow mounting to the pushbutton switch housing.
Exterior Finish of the Assembly
The exterior of the assembly shall be painted aluminum. the raised print legend shall be painter black to provide maximum contrast to the background of the plaque. Any paint used shall be of hard wearing exterior enamel of the finest grade.

PBA 1000
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