Non-Metallic Pushbutton Boxes


NEMA TYPE 4, 4x, 6, 6p, 12 & 13

 Water, oil & dust-tight pushbutton enclosures


Ralston’s non-metallic pushbutton boxes are designed to provide protection against dust, dirt, oil and water for most standard water-tight pushbutton, switches and pilot lights. These enclosures are suitable for outdoor use.


The NMPB series is made from injection molded polycarbonate material. The door is pre-punched to accept 30mm or 22mm switches, pilot lights, and pushbuttons. Doors are sealed with water-tight gasket and are secured to the enclosure with non-metallic hardware to avoid corrosion.


Ralston’s non-metallic pushbutton boxes are light gray (RAL-7035).


The NMPB series is cUL approved to the requirements of NEMA type 4, 4X, 6, 6P, 12 & 13 specifications and carry a UL flammability rating of UL 94 5V.

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Ralston’s Non-Metallic Enclosures are designed

to last in highly corrosion resistant areas. Fiberglass reinforced polyester ensures that our enclosures outlast

the competition’s. High-impact resistant, light weight, and

easy to machine, our non-metallic enclosures are a cost-effective solution for all indoor and outdoor extreme conditions.

RALSTON METAL PRODUCTS LTD. Watson Plant: 50 Watson Rd., South, Guelph, ON, N1L 1E2
Phone: 1.519.836.2968 | Toll Free: 1.800.265.7611 | Fax: 1.519.836.9763
E-mail: | General Inquiries