ULC CAN/ULC304:2024 Standard for Control Units, Accessories and Receiving Equipment for Intrusion Alarm Systems

PREFACE

This is the Fourth Edition of CAN/ULC 304, Standard for Control Units, Accessories and Receiving Equipment for Intrusion Alarm Systems.

This Edition of the Standard has been formally approved by the Technical Committee (TC) on Security and

Burglar Alarm Equipment and Systems.

This Standard has been developed in compliance with the requirements of Standards Council of Canada (SCC) for accreditation of a Standards Development Organization.

Only metric SI units of measurement are used in this Standard. If a value for measurement is followed by a value in other units in parentheses, the second value may be approximate. The first stated value is the requirement.

Annexes A – E, identified as Informative, are for information purposes only.

In Canada, there are two official languages, English and French. All safety warnings must be in French and English. Attention is drawn to the possibility that some Canadian authorities may require additional markings and/or installation instructions to be in both official languages.

This Fourth Edition National Standard of Canada is based on, and now supersedes, the Third Edition.

Attention is drawn to the possibility that some of the elements of this Canadian standard may be the subject of patent rights. ULC Standards shall not be held responsible for identifying any or all such patent rights.

Requests for interpretation of this Standard should be sent to ULC Standards. The requests should be worded in such a manner as to permit a “yes” or “no” answer based on the literal text of the requirement concerned.

This CAN/ULC 304 Standard is under continuous maintenance, whereby each revision is approved in compliance with the requirements of SCC for accreditation of a Standards Development Organization. In the event that no revisions are issued for a period of four years from the date of publication, action to revise, reaffirm, or withdraw the standard shall be initiated.

Comments or proposals for revisions on any part of the Standard may be submitted at any time. Proposals should be submitted via a Proposal Request in the Collaborative Standards Development System (CSDS) at https://csds.ul.com.

This Standard is intended to be used for conformity assessment.

Scope

1.1 This Standard covers construction and performance requirements for control units and accessories for intrusion alarm systems, including:

a) Protected premises control units and accessories for local or signal receiving centre connections; and

b) Signal receiving centre alarm receiving equipment including recording equipment.

c) Power supplies for use as integral or stand-alone components in intrusion alarm systems.

1.2  The equipment covered by this Standard is intended for use in premises, safes and vaults.

1.3 These requirements also serve as the basis of classification of signal receiving centre intrusion alarm control units. Requirements covering complete control units are contained in ULC-S301, Standard for Signal Receiving Centres Configurations and Operations.

1.4 Rules covering installation and classification (of extent) of alarm protective equipment at individual locations are contained in ULC-S302, Standard for the Installation, Inspection and Testing of Intrusion Alarm Systems.

1.5 These requirements do not cover intrinsically safe systems for use in hazardous locations, as defined in CSA C22.1, Canadian Electrical Code.