1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60947-4-1ALow-Voltage Switchgear and Controlgear - Part 4-1: Contactors and motor-starters -Electromechanical contactors and motor-startersUL COPYRIGHTED MATERIAL NOT A
2、UTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 60947-4-1ALow-Voltage Switchgear and Controlgear - Part 4-1: Contactors and motor-starters - Electromechanicalcontactors and motor-startersEdition: 2Edition Date: January 26, 2007The revisions date
3、d April 29, 2011 were issued to incorporate the following changes:1. Harmonization of IEC utilization categories with the UL ratings for control of externalloads.2. Deletion of Table 5.5DV.1 and associated references to standard VA ratings based onsize of contactor.3. Deletion of Clause 6.2DV.3.3 re
4、quiring marking for separately provided, poly-phaseoverload relays.4. Reduction of the number of marking locations in Table 6.2DV.1 to three.5. Modification of Clause 6.2DV.3.5 marking requirements for overload relays withremovable current elements.6. Deletion of Clause 8.1DV.2.1 requiring a stop on
5、 an instantaneous trip circuit breaker.7. Deletion of Clause 8.1.5.1DV and all subclauses requiring handle position marking.8. Deletion of Clause 8.2.5DV.1.2 allowing testing of contactor to be waived when testedas a starter.9. Deletion of Clause 8.2.5DV.1.4 requiring testing of self-protected manua
6、l combinationmotor controller with a separate remote controlled motor controller.10. Deletion of Clause 9.1.5DV.1 as this testing is optional.11. Deletion of Clause 9.3.3.2.2DV.1 requiring calibration testing of devices with overloadrelay to be tested with largest wire that will fit into terminal.12
7、. Deletion of Clause 9.3.3.2.2DV.2 addressing the sizing of wire for calibration testing.13. Deletion of Clause 9.3.3.2.2DV.3 relating sizing of wire for calibration testing to tripmarking on relay.14. Deletion of Clause 9.3.3.2.2DV.4 regarding selection of samples for calibration testing.15. Revisi
8、on of Table 8.2.2DV.1 to reference K (Kelvin) instead of C (Celsius) fortemperature rises.APRIL 29, 2011NATIONAL DIFFERENCES FOR UL 60947-4-1A2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL16. Revision of Clause 9.3.4.2.3DV.4.1 part (d) to e
9、liminate need for reconducting shortcircuit testing on overload relays where there has been current element burnout.17. Clarification of marking for reduced voltage autotransformer controllers.UL 60947-4-1A is an adoption of IEC 60947-4-1, Second Edition, issued by the IEC in 2000, asrevised by the
10、corrigendum (July 2001). Please note that the National Difference documentincorporates all of the U.S. national differences for UL 60947-4-1A. These revisions involve therevision and deletion of national differences as noted above.This document provides a single listing of the National Differences i
11、ncluded in the UL adoption ofthe corresponding IEC 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
12、 this standards document as is without warranty of 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
13、loss of profits, lost savings, loss of data, or any 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
14、pricepaid for this standards document, regardless of 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) resul
15、ting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright Underwriters Laboratories Inc.APRIL 29, 2011 NATIONAL DIFFERENCES FOR UL UL 60947-4-1A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUT
16、ION WITHOUT PERMISSION FROM ULPrefaceThis document provides 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 a
17、dditionally noted in this document. The standard may not 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 saf
18、ety practices. These are deviations for IEC requirements 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 s
19、tandard is harmonized with the IEC component standard.DE - 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
20、 thefollowing words is used to explain how the text of 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
21、.Deletion / Delete - A deletion entails complete deletion 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
22、the replacement of an entire clause,subclause, table, figure, or annex of the base IEC text.APRIL 29, 2011NATIONAL DIFFERENCES FOR UL UL 60947-4-1A4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV DC Modification to Clau
23、se 1:1DV.1 Circuit breakers used as short-circuit protective devices in combination startersand protected starters shall comply with the requirements of Annex DVB, Table 101.DVB.3,Ref. No. 3. IEC 60947-2 Part 2: Circuit-breakers does not apply.1DV.2 Disconnect switches shall comply with the requirem
24、ents of Annex DVB, Table101.DVB.3, Ref. No 1. IEC 60947-3 Part 3: Switches, disconnectors, switch-disconnectorsand fuse combination units does not apply.1DV.3 Fuses used as short-circuit protective devices in combination and protectedstarters shall comply with the requirements of Annex DVB, Table 10
25、1.DVB.3, Ref. No. 2.1DV.4 Molded case switches in combination with fuses used as short-circuit protectivedevices in combination starters shall comply with the requirements of Annex DVB, Table101.DVB.3, Ref. No. 3, and Annex DVB, Table 101.DVB.3, Ref. No. 2.1.1DV DC Modify note in 1.1 by replacing wi
26、th the following:The note reference to IEC 60947-2 does not apply.1.1DV.2 D2 Modification: Add the following to 1.1:1.1DV.2.1 This standard also applies to manual controllers.1.2.1DV D2 Modification: Add the following to 1.2.1:Self-protected combination motor controller Self-protected combination mo
27、tor controllerintended to start and accelerate a motor to normal speed, to provide means for theprotection of the motor and its associated circuits against operating overloads and shortcircuits, and to switch off the supply from the motor. A disconnecting means is alsoprovided.1.3DV D2 Modify 1.3 by
28、 adding the following:1.3DV.1 This standard does not apply to controllers for hermetic compressor applications.2DV D2 Modification: Add the following to Clause 2:2DV.1 For a list of normative standards, see Annex DVB, Table 101.DVB.1 and Table101.DVB.2, for normative references. See informative Anne
29、x DVC, Table 101.DVC.1, forcomponent standards.3DV D2 Addition: Add the following to Clause 3:3.101DV CO operation An operation of closing the test device on the circuit.APRIL 29, 2011 NATIONAL DIFFERENCES FOR UL UL 60947-4-1A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRI
30、BUTION WITHOUT PERMISSION FROM UL3.102DV O operation An operation of closing the circuit on the test device. The testdevice is placed in the closed position before the start of the test.3.103DV Group installation A motor branch circuit for two or more motors, or one ormore motors with other loads an
31、d protected by a circuit breaker or a single set of fuses.3.104DV 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.
32、Coordinatedprotection may be inherent or obtained by correct selection of components or accessoryparts in accordance with the manufacturers instructions.3.2DV D2 Addition: Add the following to 3.2:3.2DV.1 Combination controller An open or enclosed device containing a magneticcontroller and a disconn
33、ecting means. The controller is not required to contain overloadprotection or short circuit protection. An enclosed combination controller includes anexternal means for operating the disconnecting means.3.2DV.2 Combination motor controller A controller intended for motor service thatprovides a disco
34、nnecting means, branch circuit (short-circuit and ground fault)protection, motor controller, and motor overload protection. In addition, where anindividual controller is enclosed, it includes means for locking the disconnecting devicein the OFF position.3.2DV.3 Motor controller A device or group of
35、devices that serve to govern in somepredetermined manner the electric power delivered to the motor. A motor controller israted in horsepower, kilowatts, or locked-rotor and full-load amperes.3.2DV.4 Manual controller A hand-operated switching device whose contacts arecontrolled by the position of a
36、mechanical actuator. A manual controller may be providedwith an instantaneous trip element for short circuit protection only and optionallyprovided with an overload relay.5.3.1.1DV D2 Modification: Add the following to 5.3.1.1:5.3.1.1DV.1 The rating of a.c. equipment shall include the number of phas
37、es except thatthe rating of equipment obviously intended for single-phase use only is not required toinclude the number of phases.5.3.2.5DV D2 Modification: Add the following to 5.3.2.5:5.3.2.5DV.1 For kW/horsepower rated devices, see Annex 101.DVA. In Canada and theUnited States, only horsepower ra
38、ted devices apply. In Mexico, only kW ratings rateddevices apply.5.3.5.5.3DV D2 Modification: Add the following to 5.3.5.5.3:5.3.5.5.3DV.1 Intermittent duty ratings for reduced voltage motor starting Ratings forheavy and medium duty controllers shall be based on the duty cycles and the loadcondition
39、s specified in Table 9.3.3.6DV.4.APRIL 29, 2011NATIONAL DIFFERENCES FOR UL UL 60947-4-1A6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.4DV D2 Addition to 5.4:5.4DV.1 The equipment rating and required load designation shall be in accordance
40、 withTable 5.4DV.1. In addition, utilization categories and/or additional load designations maybe marked.Table 5.4DV.1 Ratings of a device controlling an external loadLoad typeEquivalentutilizationcategory (2) Equipment ratingRequired LoadMarkingAdditional loaddesignations (2)General purpose; Non-in
41、ductive or slightlyinductiveAC-1 Amperes None General Use; AC-1General purpose; Non-inductive 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(3) Amperes None N
42、oneResistance air heating, AC Amperes Resistance Resistance airheatingResistance air heating, 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 B
43、allast AC-5aMotor (HermeticCompressor Rating)AC-8a FLA and LRA hermeticrefrigerationcompressorherm. 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 NoneCon
44、troller (standard rating) Watts/Horsepower(1)None See Annex101.DVAManual motor controllersuitable for motordisconnecting means Watts/Horsepower(1) or FLA andLRASuitable as MotorDisconnectNoneMotor for elevator control Watts/Horsepower(1) or FLA andLRAElevator duty NoneMotor and tap conductorprotecti
45、on Watts/Horsepower(1) or FLA andLRASuitable for TapConductorProtection inGroupInstallationsNoneCapacitive switching kVar and FLA None None(1) Horsepower rated devices apply in Canada and USA only. kW ratings rated devices apply in Mexicoonly.APRIL 29, 2011 NATIONAL DIFFERENCES FOR UL UL 60947-4-1A
46、7Table 5.4DV.1 Ratings of a device controlling an external load Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 5.4DV.1 Ratings of a device controlling an external load ContinuedLoad typeEquivalentutilizationcategor
47、y (2) Equipment ratingRequired LoadMarkingAdditional loaddesignations (2)General purpose; Non-inductive or slightlyinductiveAC-1 Amperes None General Use; AC-1General purpose; Non-inductive or slightlyinductiveDC-1 Amperes None General Use; DC-1AC Resistance (not airheating) Amperes Resistive Res.DC
48、 Resistance (not airheating) Amperes Resistive Res.AC Electric Heating Control(3) Amperes None NoneResistance air heating, AC Amperes Resistance Resistance airheatingResistance air heating, DC Amperes Resistance Resistance airheatingIncandescent lamp, AC AC-5b Amperes or watts Tungsten AC-5bIncandes
49、cent 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 hermeticrefrigerationcompressorherm. 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) Watts/Horsepower(1)None See Annex101.DVAManual motor controllersui
