How to Use Rotary Stepping Switches Wisely and Fig
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Schindler Schindler / Westinghouse Quick Locator Guide
www.SEESinc.com SCHINDLER/WESTINGHOUSE SCHINDLER / WESTINGHOUSE QUICK LOCATOR GUIDE Belts . 607 Brushes . 608-611 Brush Holders . 612-613 Capacitators. 630 Car Signal Components . 600-606 Gongs . 606 Emergency Stop Switch . 600, 602-603 Key Switches and Keys . 600, 604, 606 Lantern Lens. 605 Position Indicators . 604 Pushbutton Assemblies . 600-603, 606 Switches, Rocker and Reed. 606 Coils . 614-616 Door Parts And Equipment . 617-629 Cables and Pulleys . 628-629 Door Keys and Escutcheons . 625 Door Roller Assemblies. 628 Gibs, Guides . 625, 656 Hatch Equipment . 619 Interlock Components . 617, 620-622 Door Motors . 619, 629 Operators . 626-627 Safety Edge Parts . 623 Spirator, Reel Closer . 624 Track Liner . 629 Electronics - Tubes, Breakers, Fans . 631 Machine Parts . 632-636 Gaskets, Seals and Bearings. 632-636 Motors . 619, 629, 647 Printed Circuit Boards . 637-641 Rectifiers . 630 Relays . 643-644 Relay Components. 644-648 Resistors. 642 Selector Components . 649-650 Switches . 648-650 Transformers . 651 Wheels And Rollers . 652-655 Hanger Assemblies. 653-654 Hanger Rollers . 653-654 Roller Guide Assemblies . 655 Roller Guide Wheels . 654-655 954.971.1115 / fax 954.917.7337 800.526.0026 599 www.SEESinc.com Car Signal Components SB-2 SB-3 SB-4 SB-1 SCH-KCY-001 SCH-KCY-002 SB-5 SB-6 SB-6-VAN SB-1BR-7 SK-1 SKS-2A SKS-1 SK-3 SK-4 SK-5 SKS-2 SK-2 S.E.E.S. # O.E.M. # Description SB-1 8544C17G04 Button Housing, with lens SB-1BR- 6954C71H01 Braille Plate, braille for SB-1 housing, Stainless Steel, 1” x 1.187” SCHINDLER/WESTINGHOUSE (specify marking) SB-1BR-ARROW_DOWN Braille, Down Arrow For SB-1 SB-1BR-ARROW_UP Braille, Up Arrow For SB-1 SB-2 8540C58H02 Button Retainer Bracket SB-2A 70010CSC3R Screw, 6-32 x 1/2" Hex Washer Head, Slotted SKS-3 SB-3 7283C730G02 Printed Circuit Board Assembly for pushbutton, two micro switch type SB-4 7283C730G01, Printed Circuit Board Assembly for pushbutton, one 998C278H11 micro switch type SCH-KCY-001 D3158-057A/AS100 Key Switch, PHI, 3 position with AS100 key SCH-KCY-002 D3158-057B/AS100 Key Switch, PHII, 3 pos, AS100 key, per yr. -
Switches and Relays for the Power Industry
Switches and Relays For the Power Industry E L E C T R O NEVER S W I T A DOUBT C H U T I L I T Y ELECTROSWITCH Corporation 180 King Avenue P Weymouth, MA 02188 R TEL: (781) 335-5200 O FAX: (781) 335-4253 www.electroswitch.com D U C T S 5M 113 Printed in USA U.2.D THE ELECTRO SWITCH CORPORATion Family… PROVIDING INTELLIGENT SOLUTIONS FOR SWITCHING AND CONTROL Complete line of electrically and manually activated Rotary Switches and Relays POWER SWITCHES & RELAYS for electric utility, defense, and industrial monitoring and control applications The Best Rotary Switches, Relays, and Electrical Systems Products... Backed by the industry’s most www.electroswitch.com knowledgeable and responsive Rotary Switches; Miniature Toggle, Paddle, Rocker, Power Toggle, and Push- ELECTRONIC PRODUCTS Button Switches; Hall Effect, and Mechanical Encoders; Illuminated Switch engineering and customer Products; and Power Transformers service professionals... Any way you want them... Delivered when you need them. www.electro-nc.com DIGITRAN Digital and Rotary Switch Products designed for aviation, defense, and industrial DIGITAL & ROTARY SWITCHES switch applications ELECTROSWITCH www.digitran-switches.com ARGA CONTROLS Electric utility, industrial and military-grade Power Meters, Battery Monitors, MEASUREMENT & CONTROL INSTRUMENTATION and Transducers for precision measurement applications NEVER www.argacontrols.com Sunrise Technologies Wireless Communication Systems for Smart Grid applications and a complete A DOUBT OUTDOOR LIGHTING CONTROLS & MONITORING line -
Moeller Wiring Manual 02/05 Specifications, Formulae, Tables
Moeller Wiring Manual 02/05 Specifications, Formulae, Tables Page Marking of electrical equipment 9-2 Circuit symbols, European – North America 9-14 Circuit diagram example to North American specifications 9-27 Approval authorities worldwide 9-28 Test authorities and approval stamps 9-32 Protective measures 9-34 Overcurrent protection of cables and conductors 9-43 Electrical equipment of machines 9-51 Measures for risk reduction 9-56 Measures for risk avoidance 9-57 Degrees of protection for electrical equipment 9-58 North American classifications for control switches 9-68 9 Utilisation categories for contactors 9-70 Utilisation categories for switch-disconnectors 9-74 Rated motor currents 9-77 Conductors 9-81 Formulae 9-90 International unit system 9-94 For Immediate Delivery call KMParts.com at (866) 595-96169-1 Moeller Wiring Manual 02/05 Specifications, Formulae, Tables Marking of electrical equipment General Extracts from the DIN Standards with VDE The marking appears in a suitable position as Classification are quoted with the permission of close as possible to the circuit symbol. The the DIN (Deutsches Institut für Normung e.V.) and marking forms the link between the equipment in the VDE (Verband der Elektrotechnik Elektronik the installations and the various circuit documents Informationstechnik e.V.) It is imperative for the (wiring diagrams, parts lists, circuit diagrams, use of the standards that the issue with the latest instructions). For simpler maintenance, the date is used. These are available from complete marking or part of it, can be affixed on VDE-VERLAG GMBH, Bismarckstr. 33, 10625 or near to the equipment. -
3. Relays Contents
3. Relays Contents 1 Relay 1 1.1 Basic design and operation ...................................... 1 1.2 Types ................................................. 2 1.2.1 Latching relay ......................................... 2 1.2.2 Reed relay ........................................... 3 1.2.3 Mercury-wetted relay ..................................... 3 1.2.4 Mercury relay ......................................... 3 1.2.5 Polarized relay ........................................ 4 1.2.6 Machine tool relay ...................................... 4 1.2.7 Coaxial relay ......................................... 4 1.2.8 Time delay .......................................... 4 1.2.9 Contactor ........................................... 4 1.2.10 Solid-state relay ........................................ 4 1.2.11 Solid state contactor relay ................................... 5 1.2.12 Buchholz relay ........................................ 5 1.2.13 Forced-guided contacts relay ................................. 5 1.2.14 Overload protection relay ................................... 6 1.2.15 Vacuum relays ........................................ 6 1.3 Pole and throw ............................................. 6 1.4 Applications .............................................. 7 1.5 Relay application considerations .................................... 8 1.5.1 Derating factors ........................................ 9 1.5.2 Undesired arcing ....................................... 9 1.6 Protective relays ........................................... -
Electrical Devices Used in Launching Systems
CHAPTER 9 ELECTRICAL DEVICES USED IN LAUNCHING SYSTEMS INTRODUCTION system. Relay and switch arrangements provide switching from one type of control to another. In this chapter we discuss the basic operating Some launching systems are capable of stowing principles of switches and relays. Also, we take up mixed loads. For example, several kinds of Terriers the application of these units in launching system such as BT-3 and HT-3 are stowed in the same control circuits. To maintain electrical and ready service ring. Mixing of missiles implies that electronic circuits efficiently and effectively, you some method is provided to locate and to select a must have this background knowledge. desired missile for loading and firing. Special In most missile launching systems, the devices, which incorporate switches and relays, are equipments are normally located at considerable used to perform the missile stowage locating and distances from each other. For example, the selecting function. The Mk 9 GMLS uses a launcher captain's control panel is more than 50 stepping switch to select a cell from which a feet from the launcher, yet he must be able to missile can be selected. In the Mk 10 GMLS, this control the launcher without leaving his station. action is one of the functions of the load status How is this particular problem solved? Remote recorder, and in the Mk 13 GMLS a ratchet relay is control is the answer. Remote (indicating and utilized. Though the names of these devices differ, control) circuits are made up of switches, relays, they all operate to perform the same general and other devices, which control the output from purpose. -
4 Switches and Circuit Protection
ELECTRICS 4 Switches and Circuit Protection The ability to control circuits is achieved position to make a circuit. A ’two-position’ is mainly by switches and relays. set either open or closed. A ‘three-position’ has one ‘off’ and two ‘on’ positions and can Circuit protection devices are located also be called a ‘selector switch’. accessible for replacement or resetting, and as close to a power distribution point as possible so as to achieve the minimum of unprotected cable. These protection devices Single pole, are covered in the last part of this chapter. single throw SPST 4.1 Switches Essentially a switch employs two contacting surfaces which are insulated from each other and can be brought together by a movable Double pole, connecting link. This link is called a ‘pole’ single throw and if it allows one circuit to be completed DPST the switch is called a ‘single-pole, single- throw’ switch. If two circuits can be made (not simultaneously) by movement of the single pole then the switch is called a ‘single- Single pole, pole, double throw’ switch. Two poles which double throw can each complete one circuit simultaneously SPDT is known as a ‘double-pole, single throw’ switch. This nomenclature can obviously be extended to ‘double -pole, double throw’ and further as fig. EL 4.1 indicates. Switches are also grouped by the number of positions Double pole, they have. double throw DPDT ‘Single-position’, ‘two-position’ and ‘three- position’ switches are common. A ‘single- Fig. EL 4.1 Various switch types, their circuit symbols position’ switch is usually spring loaded to one position and is held at the second Switches and Circuit Protection 4-1 ELECTRICS Various common types of switches are listed further on. -
Switches for Industrial Applications
Switches For Industrial Applications ELECTROSWITCH The Best Switches… Backed by the industry’s most knowledgeable and responsive engineering and customer service professionals... Any way you want them... Delivered when you need them. ELECTROSWITCH NEVER A DOUBT TABLE OF CONTENTS The Advantage Is Yours 2 Detent-Action Rotary Switches 10 Snap-Action Rotary Switches 20 Cam-Action Rotary Switches 30 Tap Switches 37 Knife Switches 42 Construction Details 47 Handles 50 Nameplates 52 Accessories 53 Testing & Life Expectancy 54 THE ADVANTAGE IS YOURS hen you choose Electroswitch products the advantage is always yours... For over 50 years Electroswitch products Whave been specified for use in the most demanding, most critical industrial applications by most major equipment manufacturers in the United States. They know that when you specify Electroswitch products you have chosen the most dependable, most reliable, and most proven products available in the world today. With Electroswitch there is Never a Doubt. Electroswitch also offers the widest variety of industrial switches available today. There are virtually millions of different potential configurations to precisely meet applications. We offer a choice of detent-, snap- and cam-action switches, as well as tap switches and knife switches to enhance your application. The Advantage is Always Yours when you work with Electroswitch. THE ADVANTAGE IS YOURS You Get The Greatest Selection. hen we say we have a full line of products, we mean exactly that. Whatever your • Detent Switches W application, you will either find a standard switch to precisely match it or we will design and test a • Snap Switches special switch to meet your needs. -
KRAUS & NAIMER BLUE LINE Push Buttons and Pilot Lights
KRAUS & NAIMER BLUE LINE Push Buttons and Pilot Lights Web-site: http://www.krausnaimer.com I S O 9001 Programs Push buttons and pilot lights by Kraus & Naimer represent an ideal combination of functional security and economical efficiency in a modular design. Push Buttons Cam Switches • Non-illuminated or illuminated • ON/OFF switches and double-throw switches • Flush, extended or with extended front ring • Protection IP65 • Momentary or latched (for converting into spring return • For further cam switches, refer to Catalogue 120 function) Pilot Lights Enclosures • Standard units flush or conical • Plastic yellow or grey • Solid pilot lights (direct wire) • With 1, 2, 3, 4 or 6 options Double-Push Buttons Legend Options • Non-illuminated or illuminated • Front plates and color caps • Legend inserts Emergency Stop Push Buttons Accessories • Fool-proof • A wide range of accessories are available, e.g. protection shrouds • Non-illuminated or illuminated and protection caps • Optional mounting in enclosure Potentiometer Environmentally Compatible Materials • Incl. resistor • Cadmium and asbestos-free • recyclable Reset Push Button Selection • Incl. reset rod • Complete units • Pre-assembled front elements • Individual components Rotary Switches • Non-illuminated or illuminated • Without and with key • Momentary (for converting into spring return function) Contact Blocks and LED Pilot Light Assemblies Contact blocks • Finger-proof and open terminals (IP 20) LED Pilot Light • Captive mounting screws Assemblies Coupling • Low overall depth, -
Electrical Fundamentals - Introduction to Circuit Control Devices
PDHonline Course E247 (3 PDH) Electrical Fundamentals - Introduction to Circuit Control Devices Instructor: A. Bhatia, B.E. 2012 PDH Online | PDH Center 5272 Meadow Estates Drive Fairfax, VA 22030-6658 Phone & Fax: 703-988-0088 www.PDHonline.org www.PDHcenter.com An Approved Continuing Education Provider CHAPTER 3 CIRCUIT CONTROL DEVICES LEARNING OBJECTIVES Upon completion of this chapter you will be able to: 1. State three reasons circuit control devices are used and list three general types of circuit control devices. 2. Identify the schematic symbols for a switch, a solenoid, and a relay. 3. State the difference between a manual and an automatic switch and give an example of each. 4. State the reason multicontact switches are used. 5. Identify the schematic symbols for the following switches: • Single-pole, double-throw • Double-pole, single-throw • Double-pole, double-throw • Single-break • Double-break • Rotary • Wafer 6. State the characteristics of a switch described as a rocker switch. 7. State the possible number of positions for a single-pole, double-throw switch. 8. Identify a type of momentary switch. 9. State the type of switch used to prevent the accidental energizing or deenergizing of a circuit. 10. State the common name for an accurate snap-acting switch. 11. State the meaning of the current and voltage rating of a switch. 12. State the two types of meters you can use to check a switch. 13. Select the proper substitute switch from a list. 14. State the conditions checked for in preventive maintenance of switches. 3-1 15. State the operating principle and one example of a solenoid. -
TOPIC 2:SWITCHING INTRODUCTION 1.Strowger (Step-By-Step) Switching
TOPIC 2:SWITCHING INTRODUCTION 1.Strowger (step-by-step) switching The Strowger switch, also known as Step-by-Step or SXS, is an early electromechanical telephone switching system invented by Almon Brown Strowger. It is a specialized version of a stepping switch. Step by Step Switching or Strowger switching was the first automatic telephone system introduced by Almon B. Strowger. This system uses selectors for switching. The selectors used in Strowger exchange are mainly of two types: 1. Uniselector 2. Two motion selector. Both the selectors belong to the same types of switches called rotary switches. UNISELECTOR This is called uniselector because the rotary motion of this switch is in one direction, i.e., the wiper assembly moves only in one direction. The uniselector consists of moving contacts called wipers. These are used to make electrical connections with any one of several contacts, called bank contacts, in an arc around it. The arc in most cases consists of ten steps. The wiper assembly is divided into three sets of wipers so that the switch has to turn through only one third of a full circle when operated. These wipers are operated by an electromagnet, called driving magnet, with the help of a ratchet and pawl mechanism. When current flows through the windings of the driving magnet, it is energised and attracts the armature; the pawl slips over one tooth of the ratchet wheel. The ratchet is prevented from movement in the reverse direction by a detent. When the current stops through the windings of the driving magnet, it is de-energised, and the armature comes back to its rest position. -
Wiring Manual Automation and Power Distribution
Wiring Manual Automation and Power Distribution Moeller addresses worldwide: www.moeller.net/address Wiring Manual E-mail: [email protected] Internet: www.moeller.net L1 L2 L3 21 1 3 5 13 -Q1 L 14 22 N Issued by Moeller GmbH B -F1 I > I > I > Hein-Moeller-Str. 7-11 2 4 6 D-53115 Bonn ~ +12 V 0 V © 2006 by Moeller GmbH, Germany 1 3 5 1 3 5 1 3 5 L01h -Q11 -Q15 -Q13 F1 Subject to alteration 2 4 6 2 4 6 2 64 N01 h FB0200-004GB-INT MDS/Doku/ 02/05 97 95 A -F2 Printed in the Federal Republic of 2 4 6 98 96 Germany (04/06) PE Article No.: 106254 U1 V2 V1 M W2 W1 3 U2 L N NI1 I7 I8 -M1 For Immediate Delivery call KMParts.com at (866) 595-9616 All brand and product names are trade marks or registered trademarks of the owner concerned 1st edition 2000, 12/99 2nd updated edition 2006, publication date 02/05 © Moeller GmbH, Bonn Editor: Heidrun Riege Translators: Uli Wright, Nigel Green, Dominik Kreuzer, David Long, Terence Osborn All the circuits are designed according to our best expertise and have been carefully tested. They serve as practical examples. Moeller GmbH refuses to accept liability for any errors. All rights reserved, including those of the translation. No part of this manual may be reproduced in any form (printed, photocopy, microfilm or any other process) or processed, duplicated or distributed by means of electronic systems without the written permission of Moeller GmbH, Bonn, Germany. -
Switches and Relays for the Power Industry
Switches and Relays For the Power Industry E L E C T R O NEVER S W I T A DOUBT C H U T I L I T Y ELECTROSWITCH Corporation 180 King Avenue P Weymouth, MA 02188 R TEL: (781) 335-5200 O FAX: (781) 335-4253 www.electroswitch.com D U C T S 5M 113 Printed in USA U.2.D THE ELECTRO SWITCH CORPORATion Family… PROVIDING INTELLIGENT SOLUTIONS FOR SWITCHING AND CONTROL Complete line of electrically and manually activated Rotary Switches and Relays POWER SWITCHES & RELAYS for electric utility, defense, and industrial monitoring and control applications The Best Rotary Switches, Relays, and Electrical Systems Products... Backed by the industry’s most www.electroswitch.com knowledgeable and responsive Rotary Switches; Miniature Toggle, Paddle, Rocker, Power Toggle, and Push- ELECTRONIC PRODUCTS Button Switches; Hall Effect, and Mechanical Encoders; Illuminated Switch engineering and customer Products; and Power Transformers service professionals... Any way you want them... Delivered when you need them. www.electro-nc.com DIGITRAN Digital and Rotary Switch Products designed for aviation, defense, and industrial DIGITAL & ROTARY SWITCHES switch applications ELECTROSWITCH www.digitran-switches.com ARGA CONTROLS Electric utility, industrial and military-grade Power Meters, Battery Monitors, MEASUREMENT & CONTROL INSTRUMENTATION and Transducers for precision measurement applications NEVER www.argacontrols.com Sunrise Technologies Wireless Communication Systems for Smart Grid applications and a complete A DOUBT OUTDOOR LIGHTING CONTROLS & MONITORING line