4-Inch Steel Octagon Concrete Boxes

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Crouse-Hinds series 4" steel octagon concrete boxes are used in poured deck applications that are common in high rises, apartments, condominiums and restaurants with outdoor dining areas. The boxes are installed on wooden or steel forms and concrete is poured. Upon removal of the forms, the box is flush with the concrete.

Additionally, the TP643 within this concrete box family is fan rated. Because of the additional mounting support boss and locknuts, this new box is suitable for use with fans of up to 70 pounds and fixtures up to 90 pounds.

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Certifications and compliances

UL Listed

Design features

The TP643 fan rated concrete box is made from two-piece welded construction and is supplied with two rows of 1/2” and 3/4” dedicated KOs
The box is also supplied with two external mounting ears which are used to secure the box to the forms
The fan (or fixture) is held securely in place by the two 10-32 x 1-1/2” long pan head screws and lock washers; the screws attach to the specially designed boss
There are two 8-32 x 1/2” screws provided for attachment of a box plate/cover (TP648, TP649 or TP650 – ordered separately)
Mounting support boss and locknuts allow the TP643 box to be used with fans of up to 70 pounds and fixtures up to 90 pounds

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