1、 NEMA ICS 5 INDUSTRIAL CONTROL AND SYSTEMS: CONTROL-CIRCUIT AND PILOT DEVICES NEMA Standards Publication ICS 5-2000 (R2005, R2010) (Incorporates 12/2008 Errata) Industrial Control and Systems: Control-Circuit and Pilot Devices Reaffirmed August 12, 2010 Published by National Electrical Manufacturers
2、 Association 1300 North 17th Street, Suite 1752 Rosslyn, Virginia 22209 www.nema.org 2001 by the National Electrical Manufacturers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literar
3、y and Artistic Works, and the International and Pan American Copyright Conventions. NOTICE AND DISCLAIMER The information in this publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus d
4、oes not necessarily mean that there is unanimous agreement among every person participating in the development of this document. NEMA standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This p
5、rocess brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. While NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does not write the document and it does not independ
6、ently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature whatsoever, whether special, indirect, c
7、onsequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, express or implied, as to the accuracy or completeness of any information published herein, and disclaims and mak
8、es no warranty that the information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standard or guide. In publishing and making this document
9、available, NEMA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropr
10、iate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consult for additional views or inform
11、ation not covered by this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compl
12、iance with any health or safetyrelated information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. ICS 5-2000 (R2005, R2010) Page i CONTENTS Foreword .iv Part 1 GENERAL STANDARDS FOR CONTROL-CIRCUIT AND PILOT DEVICES 1.
13、GENERAL 1-1 2. DEFINITIONS.1-2 3. CLASSIFICATION1-3 4. CHARACTERISTICS AND RATINGS1-3 5. PRODUCT MARKING, INSTALLATION, AND MAINTENANCE INFORMATION.1-5 6. SERVICE AND STORAGE CONDITIONS.1-5 7. CONSTRUCTION 1-5 8. PERFORMANCE REQUIREMENTS AND TESTS1-5 9. APPLICATION1-9 Part 2 INDUSTRIAL CONTROL RELAY
14、S 1. GENERAL 2-1 2. DEFINITIONS.2-1 3. CLASSIFICATION2-2 4. CHARACTERISTICS AND RATINGS2-3 5. PRODUCT MARKING, INSTALLATION, AND MAINTENANCE INFORMATION.2-4 6. SERVICE AND STORAGE CONDITIONS.2-4 7. CONSTRUCTION 2-4 8. PERFORMANCE REQUIREMENTS AND TESTS2-4 9. APPLICATION2-5 Part 3 INDUSTRIAL CONTROL
15、INPUT DEVICES ACTUATED BY FORCE, TEMPERATURE OR PRESSURE 1. GENERAL 3-1 2. DEFINITIONS.3-1 3. CLASSIFICATION3-7 4. CHARACTERISTICS AND RATINGS3-7 5. PRODUCT MARKING, INSTALLATION, AND MAINTENANCE INFORMATION.3-8 6. SERVICE AND STORAGE CONDITIONS.3-9 7. CONSTRUCTION 3-9 8. PERFORMANCE REQUIREMENTS AN
16、D TESTS3-10 9. APPLICATION3-11 ICS 5-2000 (R2005, R2010) Page ii Part 4 PROXIMITY SWITCHES 1. GENERAL.4-1 2. DEFINITIONS.4-2 3. CLASSIFICATION 4-6 4. CHARACTERISTICS AND RATINGS4-6 5. PRODUCT MARKING, INSTALLATION, AND MAINTENANCE INFORMATION.4-11 6. SERVICE AND STORAGE CONDITIONS.4-13 7. CONSTRUCTI
17、ON .4-13 8. PERFORMANCE REQUIREMENTS AND TESTS 4-22 9. APPLICATION4-41 Part 5 PUSHBUTTONS, SELECTOR SWITCHES, INDICATING LIGHTS, AND PUSHBUTTON STATIONS 1. GENERAL 5-1 2. DEFINITIONS.5-1 3. CLASSIFICATION5-1 4. CHARACTERISTICS AND RATINGS5-2 5. PRODUCT MARKING, INSTALLATION, AND MAINTENANCE INFORMAT
18、ION.5-2 6. SERVICE AND STORAGE CONDITIONS.5-3 7. CONSTRUCTION 5-3 8. PERFORMANCE REQUIREMENTS AND TESTS5-5 9. APPLICATION5-5 Part 6 MECHANICAL CONTROL-CIRCUIT DEVICES WITH NORMALLY-CLOSED CONTACTS HAVING DIRECT-OPENING ACTION 1. GENERAL 6-1 2. DEFINITIONS.6-1 3. CLASSIFICATION6-1 4. CHARACTERISTICS
19、AND RATINGS6-1 5. PRODUCT MARKING, INSTALLATION, AND MAINTENANCE INFORMATION.6-2 6. SERVICE AND STORAGE CONDITIONS.6-3 7. CONSTRUCTION 6-3 8. PERFORMANCE REQUIREMENTS AND TESTS6-3 9. APPLICATION6-5 ANNEX A (Informative) CLASSIFICATION OF PROXIMITY SWITCHES A-1 ICS 5-2000 (R2005, R2010) Page iii ANNE
20、X B (Informative) TYPICAL PROXIMITY SWITCH SPECIFICATIONS.B-1 ANNEX C (Normative) PROGRAMMABLE LOGIC CONTROLLERS (PLC) COMPATIBILITY C-1 ANNEX D (Normative) ADDITIONAL REQUIREMENTS FOR PROXIMITY SWITCHES WITH INTEGRALLY CONNECTED CABLES.D-1 ANNEX E (Normative) ADDITIONAL REQUIREMENTS FOR PROXIMITY S
21、WITCHES SUITABLE FOR USE IN STRONG MAGNETIC FIELDSE-1 ICS 5-2000 (R2005, R2010) Page iv Foreword This Standards Publication was prepared by a technical committee of the NEMA Industrial Automation Control Products and Systems Section. It was approved in accordance with the bylaws of NEMA and supersed
22、es the indicated NEMA Standards Publication. This Standards Publication supersedes ICS 5-1993 Revision 1, November 1996. This Standards Publication provides practical information concerning ratings, construction, test, performance and manufacture of industrial control equipment. These standards are
23、used by the electrical industry to provide guidelines for the manufacture and proper application of reliable products and equipment and to promote the benefits of repetitive manufacturing and widespread product availability. NEMA Standards represent the result of many years of research, investigatio
24、n and experience by the members of NEMA, its predecessors, its Sections and Committees. They have been developed through continuing consultation among manufacturers, users and national engineering societies and have resulted in improved serviceability of electrical products with economies to manufac
25、turers and users. One of the primary purposes of this Standards Publication is to encourage the production of reliable control equipment which, in itself, functions in accordance with these accepted standards. Some portions of these standards, such as electrical spacings and interrupting ratings, ha
26、ve a direct bearing on safety; almost all of the items in this publication, when applied properly, contribute to safety in one way or another. Properly constructed industrial control equipment is, however, only one factor in minimizing the hazards which may be associated with the use of electricity.
27、 The reduction of hazard involves the joint efforts of the various equipment manufacturers, the system designer, the installer and the user. Information is provided herein to assist users and others in the proper selection of control equipment. The industrial control manufacturer has limited or no c
28、ontrol over the following factors which are vital to a safe installation: a. Environmental conditions b. System design c. Equipment selection and application d. Installation e. Operating practices f. Maintenance This publication is not intended to instruct the user of control equipment with regard t
29、o these factors except insofar as suitable equipment to meet needs can be recognized in this publication and some application guidance is given. This Standards Publication is necessarily confined to defining the construction requirements for industrial control equipment and to providing recommendati
30、ons for proper selection for use under normal or certain specific conditions. Since any piece of industrial control equipment can be installed, operated and maintained in such a manner that hazardous conditions may result, conformance with this publication does not by itself assure a safe installati
31、on. When, however, equipment conforming with these standards is properly selected and is installed in accordance with the National Electrical Code and properly maintained, the hazards to persons and property will be reduced. To continue to serve the best interests of users of Industrial Control and
32、Systems equipment, the Industrial Automation Control Products and Systems Section is actively cooperating with other standardization organizations in the development of simple and more universal metrology practices. In ICS 5-2000 (R2005, R2010) Page v this publication, the U.S. customary units are g
33、radually being supplemented by those of the modernized metric system known as the International Systems of Units (SI). This transition involves no changes in standard dimensions, tolerances, or performance specifications. NEMA Standards Publications are subject to periodic review. They are revised f
34、requently to reflect user input and to meet changing conditions and technical progress. Proposed revisions to this Standards Publication should be submitted to: Vice President, Technical Services National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, Virginia 22209
35、 This standards publication was developed by the Industrial Automation Control Products and Systems Section. Section Approval of the standard does not necessarily imply that all section members voted for its approval or participated in its development. At the time it was approved, the Section was co
36、mposed of the following members: ABB Inc. Carlo Gavazzi Automation Components Cooper Bussmann Cummins, Inc. Eaton Electrical, Inc. Electro Switch Corporation Emerson Electric Co. Everlite Hybrid Industries Inc. GE Hubbell Incorporated Joslyn Clark Controls, Inc. L-3 Communications, Power Paragon Mas
37、ter Control Systems, Inc. Metron, Inc. Mitsubishi Electric Automation, Inc. Moeller Electric Corporation Omron Electronics LLC Phoenix Contact, Inc. Post Glover Resistors, Inc. Reliance Controls Corporation Rockwell Automation Russelectric, Inc. SEW-Eurodrive, Inc. Siemens Energy Inc. Square D Compa
38、ny Torna Tech Inc. Toshiba International Corporation Tyco Electronics/AMP WAGO Corporation Yaskawa Electric America, Inc. ICS 5-2000 (R2005, R2010) Page vi Part 1 ICS 5-2000 (R2005, R2010) General Standards Page 1-1 Part 1 GENERAL STANDARDS FOR CONTROL-CIRCUIT AND PILOT DEVICES 1 GENERAL 1.1 Referen
39、ced Standards In this NEMA Standards Publication reference is made to the standards listed below. Copies are available from the indicated sources. National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, Virginia 22209 ICS 1-2000 Industrial Control and Systems Genera
40、l Requirements ICS 1.1-1984 (R1998) Safety Guidelines for the Application, Installation, and Maintenance of Solid State Control ICS 1.3-1986 (2001) Preventive Maintenance of Industrial Control and Systems Equipment ICS 6-1993 (R2001) Industrial Control and Systems Enclosures Underwriters Laboratorie
41、s Inc. 333 Pfingsten Road Northbrook, IL 60062 UL 310-1995 Electrical Quick-Connect Terminals UL 353-1994 Limit Controls UL 486E-1994 Equipment Wiring Terminals for Use With Aluminum and/or Copper Conductors UL 508-1999 Industrial Control Equipment UL 698-1995 Industrial Control Equipment for Use in
42、 Hazardous (Classified) Locations UL 873-1994 Temperature-Indicating and Regulating Equipment 1.2 Scope The standards in this part apply to general-purpose mechanical, electromechanical and solid-state devices which are principally used in industrial applications for control-circuit switching and th
43、e control of solenoids rated not more than 600 volts. 1.3 Normative References The definitions and standards of NEMA Standards Publication No. 250, ICS 1 and ICS 6 also apply to this part unless otherwise stated. ICS 5-2000 (R2005, R2010) Part 1 Page 1-2 General Standards 2 DEFINITIONS For the purpo
44、ses of this part the following definitions apply. abnormal conditions of use: Situations where an electromagnet, although energized, has failed to close, or where a transformer core is saturated. A control-circuit switch is required to break the current corresponding to such abnormal condition of us
45、e. conditions of use: The principal load-switching application of a control-circuit switch as indicated for the various utilization categories in Table 1-4-3. dry reed switch: A switching device comprised of two or more ferromagnetic reed-like contact-carrying arms which are sealed in a nonmagnetic
46、capsule, usually a glass tube, without the presence of a liquid. The free end(s) are actuated by a change in a magnetic field, making or breaking electrical contact. fanout: A rating given to one pole of a coil-operated switching device which represents the maximum number of coils of identical devic
47、es which can be controlled in parallel by that pole. form “A” contacts: A contact arrangement which has single-pole, single throw, normally open contacts. The function of this arrangement is to close a circuit when actuated. form “B” contacts: A contact arrangement which has single-pole, single thro
48、w, normally closed contacts. The function of this arrangement is to open a circuit when actuated. form “C” contacts: A contact arrangement which has single-pole, double throw contacts with three terminals, one for normally open, one for normally closed and one common. The function of this arrangemen
49、t is to transfer a circuit when actuated. form “Z” contacts: A contact arrangement which has single-pole, double-throw contacts with four terminals, two for normally open and two for normally closed. The function of this arrangement is to open one circuit and close the other. mercury-wetted reed switch: Similar to a dry reed switch except that the contacts are wetted by a film of mercury. normal conditions of use: Use of a control-circuit switch to close, maintain and open circuits which contain an electromagnet, the magnetic circuit of which is open at the time when the
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