UL 583

STANDARD FOR SAFETY

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Electric-Battery-Powered Industrial
Trucks

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UL Standard for Safety for Electric-Battery-Powered Industrial Trucks, UL 583

Tenth Edition, Dated August 15, 2012

Summary of Topics

This revision of ANSI/UL 583 dated May 14, 2021 includes the following changes in requirements:

– Revision to 64.2 to Allow for Electronic Distribution of Installation Instructions for Field-
installed Accessories

– Revision to 22.4.2 to Correct the Course Length for Towing Tractors

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 AUGUST 15, 2012
(Title Page Reprinted: May 14, 2021)

ANSI/UL 583-2021 i

UL 583

Standard for Electric-Battery-Powered Industrial Trucks

The first edition was titled Industrial Gasoline-Tractors. The second and third editions were titled
Power-Operated Industrial Trucks (Electric Battery-Powered & Gasoline-Powered). The fourth edition
was titled Power-Operated Industrial Trucks.

First Edition – January, 1950

Second Edition – March, 1951
Third Edition – May, 1954
Fourth Edition – November, 1956
Fifth Edition – January, 1971
Sixth Edition – May, 1972
Seventh Edition – December, 1977
Eighth Edition – September, 1991
Ninth Edition – June, 1996

Tenth Edition

August 15, 2012

This ANSI/UL Standard for Safety consists of the Tenth Edition including revisions
through May 14, 2021.
i

The most recent designation of ANSI/UL 583 as an American National Standard

(ANSI) occurred on May 5, 2021. ANSI approval for a standard does not include
i

the Cover Page, Transmittal Pages, and Title Page.

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submitted to UL at any time. Proposals should be submitted via a Proposal
Request in UL's On-Line Collaborative Standards Development System (CSDS)
at https://csds.ul.com.

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CONTENTS

INTRODUCTION................................................................................................................................7

1 Scope ..................................................................................................................................7
2 Components .........................................................................................................................7
3 Units of Measurement ...........................................................................................................7
4 Undated References .............................................................................................................7
5 Terminology ..........................................................................................................................7
6 Reference Standards ............................................................................................................8
7 Samples ...............................................................................................................................9

TYPE E TRUCKS...............................................................................................................................9
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CONSTRUCTION ..............................................................................................................................9

8 General ................................................................................................................................9
9 Motors and Electromechanical Brakes .................................................................................10
10 Motors ..............................................................................................................................10
11 Electric Controls ................................................................................................................10
12 Wiring............................................................................................................................... 11
13 Overcurrent Protection.......................................................................................................13
14 Power Source Compartment or Enclosure...........................................................................14
15 Industrial Truck Power Sources ..........................................................................................16
15.1 Lead acid batteries ..................................................................................................16
15.2 Lithium batteries ......................................................................................................16
15.3 Fuel cells ................................................................................................................17
15.4 Electrochemical capacitors .......................................................................................17
15.5 Onboard battery chargers.........................................................................................17
16 Power Source Connectors .................................................................................................17
17 Lamps, Lampholders, and Horns ........................................................................................17
17.1 General...................................................................................................................17
17.2 Horns......................................................................................................................18
18 Spacings ..........................................................................................................................18
18.1 General...................................................................................................................18
18.2 Barriers...................................................................................................................20
19 Low-Voltage Limited Energy Circuit ....................................................................................20
20 Separation of Circuits ........................................................................................................21

PERFORMANCE .............................................................................................................................22

21 Abnormal Operation ..........................................................................................................22

22 Temperature .....................................................................................................................23
22.1 General...................................................................................................................23
22.2 Fork-lift and platform-lift trucks ..................................................................................24
22.3 Load-carrying, fixed-platform trucks ..........................................................................25
22.4 Tractors ..................................................................................................................25
23 Brakes..............................................................................................................................25
24 Dielectric Voltage Withstand...............................................................................................26
25 Arc-Rupturing ...................................................................................................................26
25.1 Motor controllers and contactors in motor circuits .......................................................26
25.2 Switches controlling other than motor circuits.............................................................27
25.3 Overload test...........................................................................................................27
26 Burnout ............................................................................................................................28

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27 Solid-State Circuitry...........................................................................................................29
28 Marking-Plate-Adhesion Test .............................................................................................29
28.1 General...................................................................................................................29
28.2 Oven aging test .......................................................................................................30
28.3 Immersion test.........................................................................................................30
28.4 Standard atmosphere test ........................................................................................30

MARKING .......................................................................................................................................30

29 Details ..............................................................................................................................30

SERVICE MANUAL .........................................................................................................................31

30 Details ..............................................................................................................................31

TYPE EE TRUCKS...........................................................................................................................31

CONSTRUCTION ............................................................................................................................31

31 General ............................................................................................................................31
32 Motors and Electromechanical Brakes ................................................................................31
33 Resistors ..........................................................................................................................32
34 Electric Controls ................................................................................................................32
35 Wiring...............................................................................................................................33
36 Overcurrent Devices..........................................................................................................33
37 Battery Enclosure ..............................................................................................................33
38 Static-Discharge Devices ...................................................................................................33

PERFORMANCE .............................................................................................................................33

39 General ............................................................................................................................34

MARKING .......................................................................................................................................34

40 Details ..............................................................................................................................34

TYPE EX TRUCKS FOR USE IN HAZARDOUS LOCATIONS, CLASS I, DIVISION 1...........................34

CONSTRUCTION ............................................................................................................................34

41 General ............................................................................................................................34
42 Wiring...............................................................................................................................35
43 Protection Against Mechanical Sparks ................................................................................35
44 Motors ..............................................................................................................................35
45 Electric Controls ................................................................................................................36
46 Battery Enclosure ..............................................................................................................36
47 Battery .............................................................................................................................36
48 Battery Plugs and Receptacles...........................................................................................36
49 Wheels and Tires ..............................................................................................................36

PERFORMANCE .............................................................................................................................36

50 General ............................................................................................................................37
51 Nonmetallic Conductive Tires .............................................................................................37
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51.1 Wheels ...................................................................................................................37

51.2 Tire specimens ........................................................................................................37

MARKING .......................................................................................................................................38

52 Details ..............................................................................................................................38

TYPE EX TRUCKS FOR USE IN HAZARDOUS LOCATIONS, CLASS II, GROUP G, DIVISION 1 ........40

CONSTRUCTION ............................................................................................................................40

53 General ............................................................................................................................40
54 Motors ..............................................................................................................................40
55 Battery .............................................................................................................................40
56 Exterior-Surface Temperatures...........................................................................................41

PERFORMANCE .............................................................................................................................41

57 General ............................................................................................................................41

MARKING .......................................................................................................................................41

58 Details ..............................................................................................................................41

TYPE ES TRUCKS...........................................................................................................................42

CONSTRUCTION ............................................................................................................................42

59 General ............................................................................................................................42

PERFORMANCE .............................................................................................................................42

60 General ............................................................................................................................42
61 Resistors ..........................................................................................................................43

MARKING .......................................................................................................................................43

62 Details ..............................................................................................................................43

ELECTRICAL ACCESSORIES FOR FIELD INSTALLATION BY QUALIFIED PERSONNEL ................44

CONSTRUCTION ............................................................................................................................44

63 General ............................................................................................................................44

MARKING .......................................................................................................................................44

64 Details ..............................................................................................................................44

BATTERIES FOR INDUSTRIAL TRUCKS .........................................................................................45

CONSTRUCTION ............................................................................................................................45

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65 Type E Batteries................................................................................................................45
66 Type EE Batteries..............................................................................................................45
67 Type EO Batteries .............................................................................................................45
68 Type EX Batteries..............................................................................................................45

MARKING .......................................................................................................................................45

69 Types E, EE, and EO Batteries ...........................................................................................45

70 Type EX Batteries..............................................................................................................45

SUPPLEMENT SA – NONMETALLIC MATERIALS USED IN INDUSTRIAL TRUCKS..........................47

SUPPLEMENT SB – ELECTRIC-BATTERY-POWERED INDUSTRIAL/COMMERCIAL FLOOR

CLEANING MACHINES ......................................................................................................49

GENERAL .......................................................................................................................................49

SB1 Scope ............................................................................................................................49

SB2 Application of Requirements ............................................................................................49

PERFORMANCE .............................................................................................................................49

SB3 Temperature Test............................................................................................................49

SB4 Operation Test For Push Type, Walk Behind Floor Cleaners...............................................49

MARKINGS .....................................................................................................................................49

SB5 Details ...........................................................................................................................49

APPENDIX A ...................................................................................................................................50

Standards for Components .......................................................................................................50

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INTRODUCTION

1 Scope

1.1 These requirements cover electric powered industrial trucks, such as tractors, platform-lift trucks,
fork-lift trucks, and other vehicles designed for specific industrial uses, with respect to a risk of fire, electric
shock, and explosion. These requirements do not cover such electric powered industrial trucks with
respect to other possible risks that may be associated with the use of such trucks.

1.2 These requirements cover power sources intended for use in the electric powered industrial trucks
mentioned in 1.1, with respect to the risk of fire, electric shock, and explosion.

1.3 Deleted

1.4 These requirements cover Types E, CGH, E or CGH, EE, ES, and EX electric powered industrial
trucks.

2 Components

2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the
requirements for that component. See Appendix A for a list of standards covering components generally
used in the products covered by this standard.

2.2 A component need not comply with a specific requirement that:

a) Involves a feature or characteristic not needed in the application of the component in the product
covered by this standard, or

b) Is superseded by a requirement in this standard.

2.3 A component shall be used in accordance with its recognized rating established for the intended
conditions of use.

2.4 Specific components are recognized as being incomplete in construction features or restricted in
performance capabilities. Such components are intended for use only under limited conditions, such as
certain temperatures not exceeding specified limits, and shall be used only under those specific conditions
for which they have been recognized.

3 Units of Measurement

3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or
approximate information.

4 Undated References

4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be
interpreted as referring to the latest edition of that code or standard.

5 Terminology

5.1 In the following text, the term truck is used to mean an electric powered industrial truck. The type or
types of truck to which a specific requirement applies is identified by the heading under which the
requirement is located and by specific references in the text to the applicable requirements.

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