1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60947-4-1Low-Voltage Switchgear and Controlgear - Part 4-1: Contactors and Motor-Starters -Electromechanical Contactors and Motor-StartersUL COPYRIGHTED MATERIAL NOT AU
2、THORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60947-4-1Low-Voltage Switchgear and Controlgear - Part 4-1: Contactors and Motor-Starters - ElectromechanicalContactors and Motor-StartersEdition: 3Edition Date: April 4, 2014UL 60947-4-1 is an adop
3、tion of IEC 60947-4-1, Third Edition, issued by the IEC in 2009. Pleasenote that the National Difference document incorporates all of the U.S. national differences forUL 60947-4-1.This document provides a single listing of the National Differences included in the UL adoption ofthe corresponding IEC
4、standard.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this standards document as is without warranty of
5、any kind, either expressed or implied,including but not limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any
6、 other damages arising out of the use of or theinability to use this standards document, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for this standards document, regardless o
7、f the form of the claim.Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while p
8、urchaser is storing an electronicStandard on the purchasers computer system.Copyright Underwriters Laboratories Inc.APRIL 4, 2014NATIONAL DIFFERENCES FOR UL UL 60947-4-12UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document prov
9、ides a single listing of the technical National Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type, andthese types are additionally noted in this document. The standard may no
10、t use all types of thesedeviations.D1 - These are deviations which are based on basic safety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are deviations based on safety practices. These are deviations for IEC requirement
11、s that maybe acceptable, but adopting the IEC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a particularcomponent standard is harmonized with the IEC component standard.D
12、E - These are deviations based on editorial comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of
13、the national difference is to be applied to the base IECtext:Addition / Add - An addition entails adding a complete new numbered clause, subclause, table,figure, or annex. Addition is not meant to include adding select words to the base IEC text.Deletion / Delete - A deletion entails complete deleti
14、on of an entire numbered clause, subclause,table, figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as theaddition, replacement or deletion of certain words or the replacement of an entire clause,subclause, table, f
15、igure, or annex of the base IEC text.APRIL 4, 2014 NATIONAL DIFFERENCES FOR UL UL 60947-4-1 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1.1DV DC Modification to Clause 1.1:1.1DV.1 Circuit breakers used as short-circuit
16、 protective devices in combination startersand protected starters shall comply with the requirements of Annex DVA, Table DVA.3, Ref.No. 3. IEC 60947-2, does not apply.1.1DV.2 Disconnect switches shall comply with the requirements of Annex DVA, TableDVA.3, Ref. No 1. The Standard for Low-voltage Swit
17、chgear and Controlgear Part 3:Switches, disconnectors, switch-disconnectors and fuse combination units, IEC 60947-3,does not apply.1.1DV.3 Fuses used as short-circuit protective devices in combination and protectedstarters shall comply with the requirements of Annex DVA, Table DVA.3, Ref. No. 2.1.1D
18、V.4 Molded case switches in combination with fuses used as short-circuit protectivedevices in combination starters shall comply with the requirements of Annex DVA, TableDVA.3, Ref. No. 3, and Annex DVA, Table DVA.3, Ref. No. 2.1.1.1DV.1 DC Modify note in 1.1.1 by replacing with the following:The not
19、e reference to IEC 60947-2 does not apply.1.1.1DV.2 D2 Modification by adding the following to 1.1.1:This standard also applies to manual controllers.2DV D2 Modification by adding the following to Clause 2:For a list of normative standards, see Annex DVA, Table DVA.1 and Table DVA.2, fornormative re
20、ferences. See informative Annex DVB, Table DVB.1, for component standards.3.1DV D2 Modification of 3.1 by adding the following:3.1DV.1 Group installation A motor branch circuit for two or more motors, or one ormore motors with other loads and protected by a circuit breaker or a single set of fuses.3
21、.1DV.2 Self-protected A qualifying term applied to a controller that containscoordinated overload and short-circuit protection. A self-protected controller is evaluatedas a complete unit whether comprised of a single or multiple components. Coordinatedprotection may be inherent or obtained by correc
22、t selection of components or accessoryparts in accordance with the manufacturers instructions.3.1DV.3 Operating voltage the voltage occurring at a specific location in equipmentunder stated operating conditions.APRIL 4, 2014NATIONAL DIFFERENCES FOR UL UL 60947-4-14UL COPYRIGHTED MATERIAL NOT AUTHORI
23、ZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.3.5.5.3DV D2 Modification by adding the following to 5.3.5.5.3:Intermittent duty ratings for reduced voltage motor starting Ratings for heavy andmedium duty controllers shall be based on the duty cycles and the load conditionssp
24、ecified in Table 9.3.3.6DV.6.2.1.1.5.4.1DV D2 Modification by adding Clause 5.4.1DV.1 and Table 5.4.1DV.1.1 to 5.4.1:5.4.1DV.1 The equipment rating and required load designation shall be in accordance withTable 5.4.1DV.1.1. In addition, utilization categories and/or additional load designationsmay b
25、e marked.Table 5.4.1DV.1.1 Ratings of a device controlling an external loadLoad typeEquivalentutilizationcategory (1) Equipment ratingRequired LoadMarkingAdditional loaddesignations (1)General purpose; Non-inductive or slightlyinductiveAC-1 Amperes None General Use; AC-1General purpose; Non-inductiv
26、e or slightlyinductiveDC-1 Amperes None General Use; DC-1AC Resistance (not airheating) Amperes Resistive Res.DC Resistance (not airheating) Amperes Resistive Res.AC Electric Heating Control(2) Amperes None NoneResistance air heating, AC Amperes Resistance Resistance airheatingResistance air heating
27、, DC Amperes Resistance Resistance airheatingIncandescent lamp, AC AC-5b Amperes or watts Tungsten AC-5bIncandescent lamp, DC DC-6 Amperes or watts Tungsten DC-6Ballast (electric dischargelamp)AC-5a Amperes Ballast AC-5aMotor (HermeticCompressor Rating)AC-8a FLA and LRA HermeticRefrigerationCompress
28、orherm. p.; AC-8aMotor (HermeticCompressor, RecycleRating)AC-8b LRA None AC-8bMotor (HermeticCompressor, Part-WindingEndurance Rating) FLA and LRA None NoneMotor (non-standard rating) FLA and LRA None NoneController (standard rating) Horsepower None See Annex GController (Starting,plugging, inching)
29、AC-4 Horsepower AC-4 NoneManual motor controllersuitable for motordisconnecting means Horsepower orFLA and LRASuitable as MotorDisconnectNoneMotor for elevator control Horsepower orFLA and LRAElevator duty NoneAPRIL 4, 2014 NATIONAL DIFFERENCES FOR UL UL 60947-4-1 5Table 5.4.1DV.1.1 Ratings of a dev
30、ice controlling an external load Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 5.4.1DV.1.1 Ratings of a device controlling an external load ContinuedLoad typeEquivalentutilizationcategory (1) Equipment ratingRequi
31、red LoadMarkingAdditional loaddesignations (1)Motor and tap conductorprotection Horsepower orFLA and LRASuitable for TapConductorProtection inGroupInstallationsNoneCapacitive switching kVar and FLA None None(1) When the marked ratings are the utilization category code designations in the table, the
32、informationconcerning the load characteristics for each code designation shall be published in a catalog, becontained on a marking sheet packed with the product, or be otherwise readily available to the user.(2) Electric Heating Control rating applies in Canada only.Table 2DV D2 Modify Note 4 of Tab
33、le 2 by replacing with the following:The lower limiting values do not apply.5.7.3DV.1 D2 Modification of 5.7.3 by replacing the fifth bullet of Item (b) with thefollowing: Thermal memory marking is not applicable.5.7.3DV.2 D2 Modification of 5.7.3 by replacing the seventh bullet of Item (b) with the
34、following: Tripping times at -5C ambient do not apply.6.1.2DV D2 Modify 6.1.2 by adding the following:i) declaration of a rated insulation voltage is optional;j) declaration of an impulse withstand voltage rating is optional except when evaluatingcreepage and clearance distances per subclause 7.1.4
35、of IEC 60947-1;k) IP ratings are optional in North America. Enclosure Type ratings are required persubclause 7.1.12 of IEC 60947-1.6.2DV D2 Modification by replacing 6.2 with Clauses 6.2DV.1 to 6.2DV.4.1 and Table6.2DV.1.1:6.2DV.1 Markings Locations of required markings shall be as shown in Table 6.
36、2DV.1.1.APRIL 4, 2014NATIONAL DIFFERENCES FOR UL UL 60947-4-16UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 6.2DV.1.1 Markings (6.2DV.1)Clause reference Required markingaLocationbEnclosed OpenMotor controllers6.2DV.2.1 Motor controller
37、 short-circuit current rating / protectivedevice / Group installationAB8.2.5.1DV.1 Motor controller for use with specific overload relay B BCautionary markings for motor controllersc6.2DV.2.2 Marking for motor controllers having high availablefault current ratingAB6.2DV.2.3 Control with limited term
38、inal size for a direct currentmotor ratingBBOverload relays6.2DV.3.1 Combination of manual and automatic reset position A A6.2DV.3.2 Automatic restart of motor A B6.2DV.3.3 Current transformer for use with electronic overloadrelaysABCautionary markings for overload relaysc6.2DV.3.4 Marking for overl
39、oad relay with replaceable typethermal elements having calibrated current sensingelementABTable 8.2.2DV.1.1,Footnote bFuse replacement, Class G or K A BReduced voltage autotransformer controllers6.2DV.4.1 Marking for heavy or medium duty controllers A BaThis is a brief summary of marking requirement
40、s. All of the clauses that require marking are listed.bFor marking locations identified below, A is considered the highest order of location, and C isconsidered the lowest order of location. At the option of the manufacturer, a higher order of locationcategory may be used.A. Marking is provided on p
41、roduct.B. Marking information is shipped separately with the device.C. Marking information is available from the manufacturer, and is not required tobe shipped with the product.cCautionary markings Cautionary markings shall be located on a part that is not capable of beingremoved without impairing t
42、he operation or appearance of the equipment. A cautionary markingintended to instruct the operator shall be legible and visible to the operator during normal operation ofthe equipment. A marking that provides servicing instructions shall be legible and visible when suchservicing is being performed.6
43、.2DV.2 Motor controller markings6.2DV.2.1 A motor control device, an overload relay, or equipment incorporating anoverload relay shall be marked to indicate the maximum level of short-circuit testing andthe intended short-circuit protective devices used in the installation:a) For devices subjected t
44、o standard fault short-circuit test only, the short-circuitcurrent and voltage rating shall be marked, Suitable For Use On A CircuitCapable Of Delivering Not More Than _ rms Symmetrical Amperes,_ Volts Maximum.b) For devices subjected to group installation short-circuit tests, the devicesshall be ma
45、rked, Suitable for motor group installation in addition to marking in6.2DV.2.1(a).APRIL 4, 2014 NATIONAL DIFFERENCES FOR UL UL 60947-4-1 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULc) For devices subjected to high fault short-circuit test
46、s, the marking in6.2DV.2.1(a) or 6.2DV.2.1(b) above shall also include the following:1) When Protected by _ Class Fuses or2) When Protected By A Circuit Breaker Having An Interrupting RatingNot Less Than _ rms Symmetrical Amperes, _ VoltsMaximum.d) When the short-circuit tests are conducted with fus
47、es only, the marking in6.2DV.2.1(a) or 6.2DV.2.1(b) above shall include Use Fuses Only.e) When short-circuit tests are conducted with a protective device with anampere rating less than the maximum capable of being used for the short-circuittest, the marking shall additionally include the type of pro
48、tective device used andthe maximum size of the protective device.6.2DV.2.2 Motor controllers intended for use on circuits having high available faultcurrents shall be marked with the word WARNING and the following or equivalent: Theopening of the branch-circuit protective device may be an indication
49、 that a fault currenthas been interrupted. To reduce the risk of fire or electric shock, current-carrying parts andother components of the controller shall be examined and replaced if damaged. Thismarking may be combined with 6.2DV.3.4. In Canada, the equivalent French marking is“AVERTISSEMENT Le dclenchement du dispositif de protection de la drivation peutsignifier quun courant de fuite a t interrompu. Pour rduire les risques dincendie et
