Name: UL 291 PDF - Engineering Standards Download
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UL 291 – Automated Teller Systems

Please note: All interim revisions for this edition available at time of your purchase will be included.

These requirements cover the construction and security of equipment intended to automatically dispense currency when operated as intended by an authorizedcustomer, and to provide a limited degree of protection against unauthorized removal of currency.

If the product also receives deposits, the same degree of protection shall also be provided for the deposits.

Records shall be made in order that the authorized customer may be debited for the currency dispensed. A limited degree of protection against unauthorizedmanipulation or removal of the records that will prevent proper debit shall be provided.

A teller’s cash dispenser is not required to make records.

These requirements cover products intended for permanent connection to 600-volts or lower-potential branch circuits, and products intended for cordconnection to 300-volt or lower-potential branch circuits. The branch circuits and the means of supplying the units from them are intended to comply with theNational Electrical Code, ANSI/NFPA 70.

A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, andthat involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements tomaintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflictwith specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformancewith the methods employed for development, revision, and implementation of this standard.