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About This Item


Full Description


This is the fifth edition of CSA C22.2 No. 40, Junction and pull boxes. It supersedes the previous editions published in 1989, 1973, 1957, and 1936 under the title Cutout, junction, and pull boxes. It is one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.

Changes to this edition include a general update of the reference standards and clauses affected by the reference standard updates.


This Standard applies to the following products intended for use in accordance with CSA C22.1, Canadian Electrical Code, Part I:

a) metal and nonmetallic junction boxes (of other than the swimming pool type); and

b) pull boxes where the length does not exceed three times the width and the volume exceeds 1640 mL.

This Standard does not apply to

a) junction and pull boxes that are made in accordance with CSA C22.2 No. 18.1 and CSA C22.2 No. 18.2;

b) enclosures for use in hazardous locations;

c) enclosures that are made in accordance with CSA C22.2 No. 26;

d) junction boxes that are made in accordance with CSA C22.2 No. 89; and

e) weatherproof, waterproof, watertight, and dust-tight enclosures.

In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


Document History

  1. CSA C22.2 No. 40-17


    Junction and Pull Boxes

    • Most Recent
  2. CSA C22.2 NO. 40-M1989 (R2014)

    Cutout, Junction and Pull Boxes

    • Historical Version