UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

This is embarrasing..

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing..

An error occurred while processing the form. Please try again in a few minutes.

UL 1004-2

UL Standard for Safety Impedance Protected Motors

active, Most Current
Buy Now
Organization: UL
Publication Date: 10 January 2014
Status: active
Page Count: 13
scope:

This Standard is intended to be read together with the Standard for Rotating Electrical Machines - General Requirements, UL 1004-1. The requirements in this Standard supplement or amend the requirements in UL 1004-1. The requirements of UL 1004-1 apply unless modified by this Standard.

This Standard applies to motors that rely solely upon the impedance of the motor windings to prevent overheating.

This Standard applies to motors rated 600 volts or less.

This Standard does not apply to:

a) Motors employing a device that serves as a motor protector and a manual motor controller;

b) Motors employing a motor protector with contacts that control a relay coil in a motor starter;

c) Sealed (hermetic) type compressor motors; or

d) Impedance protected motors employing an automatic starting switch.

Document History

UL 1004-2
January 10, 2014
UL Standard for Safety Impedance Protected Motors
This Standard is intended to be read together with the Standard for Rotating Electrical Machines – General Requirements, UL 1004-1. The requirements in this Standard supplement or amend the...
January 10, 2014
UL Standard for Safety Impedance Protected Motors
This Standard is intended to be read together with the Standard for Rotating Electrical Machines – General Requirements, UL 1004-1. The requirements in this Standard supplement or amend the...
September 15, 2008
UL Standard for Safety Impedance Protected Motors
A description is not available for this item.
September 15, 2008
UL Standard for Safety Impedance Protected Motors
This Standard is intended to be read together with the Standard for Rotating Electrical Machines – General Requirements, UL 1004-1. The numbering of the Sections in this Standard corresponds to the...
September 15, 2008
UL Standard for Safety Impedance Protected Motors
A description is not available for this item.
September 15, 2008
UL Standard for Safety Impedance Protected Motors
This Standard is intended to be read together with the Standard for Rotating Electrical Machines – General Requirements, UL 1004-1. The numbering of the Sections in this Standard corresponds to the...
September 15, 2008
UL Standard for Safety Impedance Protected Motors
This Standard is intended to be read together with the Standard for Rotating Electrical Machines – General Requirements, UL 1004-1. The numbering of the Sections in this Standard corresponds to the...
September 15, 2008
UL Standard for Safety Impedance Protected Motors
This Standard is intended to be read together with the Standard for Rotating Electrical Machines – General Requirements, UL 1004-1. The requirements in this Standard supplement or amend the...

References

Advertisement