UL 751:9ED 2016-07-18

Foreword
Introduction
1 Scope
2 References
3 Terminology
4 Glossary
5 Components
6 Units of measurement
Construction
7 General
8 Frame and enclosure
9 Mechanical assembly
10 Accessibility of live parts
11 Protection against corrosion
12 Supply connections
13 Current-carrying parts
14 Insulating material
15 Internal wiring
16 Splices and connections
17 Separation of circuits
18 Heating elements
19 Motors
20 Protection against overtemperatures
21 Overcurrent protectors
22 Switches and controllers
23 Capacitors
24 Receptacles
25 Secondary circuits
26 Spacings
27 Grounding
28 Accessories
29 Coin and credit mechanisms
Protection against injury to persons
30 General
31 Stability test
32 Risk of injury to servicemen
33 Pressure vessels and parts subject to pressure
34 Pressure relief devices
Performance
35 Leakage current test
36 Input test
37 Temperature test
38 Dielectric voltage-withstand test
39 Abnormal operation test
40 Resistance to moisture tests
41 Thermostat tests
42 Bonding connection test
43 Metallic coating thickness test
44 Overload of switches and controllers test
45 Flexing of internal wiring
46 Strain relief test
47 Accelerated aging test of gaskets
48 Permanence of marking test
Manufacturing and production tests
49 Dielectric voltage-withstand test
50 Grounding continuity test
Marking
51 General
52 Cautionary
Appendix
A Standards for components

The revisions to ANSI/UL 751 dated October 2, 2018 reflects the latest ANSI affirmation date and includes the following changes in requirements: Revisions To Update Requirements For Controls Revision To And Addition Of Requirements To Prevent Remote Shut-Off Of Vending Machines Revisions To Clarify The Scope Of The Standard Revisions To And Addition Of Requirements To Address Switch Mode Power Supply Units Increasingly Used In Vending Machines Revisions To Clarify Requirements For Vending Machines Having Two Supply Cords Revisions To Marking Requirements To Clarify Application Of UL 969 Requirements Revisions To EMI Filter Requirements To Specify An Alternate Compliance Option Editorial Revisions To Clarify The Compliance Criteria Of the Leakage Current Test Editorial Revisions To Include A List Of All Reference Standards (Designation And Title) Referenced In The Text Of The Standard

1.1 These requirements cover self-contained, payment-accepting, vending machines that vend non-refrigerated products to be employed in accordance with ANSI/NFPA 70.