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C22.2 NO. 235-04 (R2017)

Supplementary Protectors

SKU: 2702071 Published by CSA Group Publication Year 2004 Reaffirmed in 2017 2 Edition

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Preface/Scope
Items Included

Scope

1.1

This Standard applies to supplementary protectors of the manual-reset type that may or may not have a manual means of operation and are intended for use as components within appliances or other electrical equipment where branch-circuit overcurrent protection is already provided (or is not required), in accordance with the Rules of the Canadian Electrical Code, Part I.

The acceptability of the component is to be determined in its final application.

This is abbreviated to protector throughout this Standard for convenience.

1.2

This Standard applies to

(a) overcurrent-trip protectors
(b) overvoltage-trip protectors
(c) undervoltage-trip protectors
(d) relay-trip protectors and
(e) accessory devices such as alarm and auxiliary switches that are installed in or on the protector to perform an auxiliary function.

1.3

This Standard applies to single- and multi-pole protectors for controlling single or polyphase ac or dc loads rated 600 V or less.

1.4

This Standard applies both to protectors capable of interrupting short-circuit currents and to protectors not capable of interrupting short-circuit currents.

1.5

Protectors covered by this Standard are not to be used for overcurrent protection of circuits defined as .branch circuits. by the Canadian Electrical Code, Part I.

1.6

This Standard applies to protectors that may be used as overcurrent protection within electrical equipment in the following types of circuits, as defined by the Canadian Electrical Code, Part I:

(a) control circuits
(b) extra-low-voltage power circuits
(c) remote control circuits and
(d) signal circuits.

Note: Protectors considered as overcurrent protection in this Clause have application codes SC:U3 and TC3.

1.7

In CSA Standards, 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.

Legends to equations and figures are considered requirements.

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C22.2 NO. 235-04 (R2017)

Product Details

C22.2 NO. 235-04 (R2017)

Supplementary Protectors

CAN/CSA-C22.2 NO. 235-M89 (R2001)

Supplementary Protectors

CAN/CSA-C22.2 NO. 235-FM89 (C2001)

Dispositifs de protection supplémentaires

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C22.2 NO. 235-04 (R2017)

Product Details

C22.2 NO. 235-04 (R2017)

Supplementary Protectors

CAN/CSA-C22.2 NO. 235-M89 (R2001)

Supplementary Protectors

CAN/CSA-C22.2 NO. 235-FM89 (C2001)

Dispositifs de protection supplémentaires