Main difference between contactor and starter electrical pdf. Download magnetic contactor 1 pole relay wiring pdf. Scr power controllers deliver a number of advantages that can lead to lower costs and better process control. Download magnetic contactor 1 pole relay wiring free files. Control relays and contactors of different makes but with the same number of contacts must have identical terminal markings. Contactors are almost exclusively designed to operate with normally open form a contacts. Cad32bd tesys d control relay, 3 no and 2 nc, 600 v, 24 vdc standard coil. Gigavac has performed extensive testing to determine the make current capability of their contactors. Some of the more common variations are mentioned below. Advanced motor protection and control fuji duo series. The relay is an automatic protective and switching device which is capable of sensing abnormal conditions in electrical circuits. Contactors, relays, starters contactors d59 magnetic starter stardelta starter thermal relay currentlimiting contact assembly ac contactor for capacitor switching auxiliary contact assembly timedelay block 5. Long life the jm family of contactors and relays offers superior performance. Contactors and relays perform the same task of switching a circuit.
The af contactor technology revolutionizes how we use contactors and allows use in all parts of the world and in all network conditions. Magnetic contactor 1 pole relay wiring download read online. Contactor and relay are two terms often encountered when dealing with electric circuits. Pro tec ted ag ain st polarity reversa l also for ac. The first three steps for selection will be the same. Controls contactors and contactor assemblies contactor.
Relays on the other hand can and often are both normally open andor normally closed depending on the desired function. These are operated to open or close the load contacts in response to one or more electrical quantities like voltage and current. Thermal overload relay with three bimetal elements. Key products include contactors, circuit breakers, current limiters, railway traction equipment, enclosures, switch disconnectors, fuses, apparatus for outdoor applications, voltage indicators and connectors, relays. Thermal overload relays class 10 a for use with tesys d contactors. A n 1 9 a n 0 a 5e 005 device type a starter c contactor contactor. Gigavac sealed contactors rohs compliant, mx series author. Component ratings provide the flexibility to choose the desired level of protection, up to the rated maximum, and use it. There is a tendency to immediately blame the relay and switches for any amplifier or antenna switch problem. Contactor relays type 3rh2 size s00 permissible mounting positions the contactor relays. Relay energized on current flowing through the control circuit coil pins. Guarantee conditions are described in detail in the noark electric complaint procedure.
Contactor relays sirius 3rh2 contactor relays, 4 and 8pole 56 siemens ic 10 2012 5 technical specifications 1 i e 6 a for ac15ac14. Contactors and protection relays low voltage products and systems as the largest selling line of contactors in the world, tesys range offers high reliability with long mechanical and electric life with. Relays and contactors use a variety of technologies to switch signals and power connections. Advanced motor protection and control fuji duo series fujis new motor control system for the international market. When a relay is used to switch a large amount of electrical power through its contacts, it is designated by a special name. Data sheet definite purpose contactors type dp 25 to dp 50. These are operated to open or close the load contacts in response to. The course content is contained in the following pdf file.
Abstract this paper compares electromechanical contactors and solidstate relays to scr power controll ers operating in a similar onoff manner. Top advantages of scr power controllers over contactors. Catalogue general technical data, standard definitions. Contactors can be combined with either manual motor starters of the sm series, providing thermal and magnetic protection up to 100a, or single or threepole thermal bimetallic overload relays, with or without singlephase protection up to 420a, to obtain nonreversing. Contactors size 002 accept tesys bimetallic overload relays as well as lr9d solid state overload relays contactors size 37 accept lr9f solid state overload relays snapon front and sidemount accessories for easy installation robustness high fault short circuit ratings up to 65ka with circuit breakers and up to 100ka with fuses. Telemecanique tesys model d contactors and overload relays hp hp hp hp hp hp a n. Simple catalog numbering for easy and fast ordering flexible with four overload relays. Contactor relays contactor relays contactor relays are often used in control and regulating functions. Contactors are used in control circuits with both low and high ampere capacity that is between 15a to 12500a. Both these devices are used for similar purposes and hence people are often confused about the difference between a contactor and a relay. Contactors size 002 accept tesys bimetallic overload relays as well as lr9d solid state overload relays contactors size 37 accept lr9f solid state overload relays snapon front and sidemount. What is the difference between a contactor and a relay.
M contactors m mini contactors mini contactors abb mini contactors abb m contactors abb m mini contactors 3pole contactors 3pole mini contactors abb 3pole contactors abb 3pole mini contactors. The control relay is one of the oldest type of relay and perhaps the best known. Contactors are electrically controlled switching devices used for switching of electrical circuits, especially motor switching circuits, switching of capacitor lighting circuits etc. Sometimes called ice cube relays because they are small and square and with clear plastic like an ice cube. Contactors electromechanical relays electronics textbook. October 2008 ca08102001e for more information visit. Manual motor starters, contactors and overload relays. Possible to print the page to a pdf file or from your printer. Data sheet definite purpose contactors type dp 25 to dp 50 ic.
It has at least a single pair of threephase input and output contacts. Tesys n contactors and starters schneider electric. M mini contactors 3pole contactors and overload relays. Our bulletin 100s104s iec safety contactors provide mechanically linked, or mirror contact performance up to 750 a, which are required in feedback circuits for modern safety applications. Some contactors come with additional auxiliary contacts. The as contactor is efficient and allows you to optimize your equipment design. Pdf magnetic contactor 1 pole relay wiring free files. They both are commonly used in industrial and commercial applications, and function in a. These are sometimes called relays or solenoid, motor contactor, battery relay, ev relay, heavy equipment relay, pv relay and special purpose contactor. The main difference between the contactor and relay is that, contactor is a high power device while relay is a low power device. In stock and ready for immediate shipment, elecdirect iec power contactors are suitable for a variety of applications like motor control, heating and ventilating, air conditioning, pumping, lifting equipment. Control relays are available in numerous configurations. Manual motor starters that provide optimal protection by integrating the functions of a molded case circuit breaker and thermal overload relay.
They are used in large quantities for the indirect control of motors, valves, clutches and heating. The control circuit has a small control coil while the load circuit has a switch. There are various types of control relays including machine tool relay, industrial relay and general purpose relay. Compact size the contactor relay mounting profile is approximately 1 34.
Furthermore, minicontactor range offers compact dimensions and specific connection possibilities. Miniature and motor contactors, auxiliary contactors and overload relays miniature and motor contactors, auxiliary contactors and overload relays contactors cei series kit with mechanical interlock solution for reversing the motor or implementation of schemes star delta special socket for rc noise filters surge supressors. Telemecanique tesys model d contactors and overload relays. Motor starters, contactors, and relays all operate on the same basic principle. Square d type s contactors and starters the standard for flexibility, simplicity, and reliability. General technical data, terminal marking terminal markings on main contacts must have a singledigit number. The course outlines the correct methods to be followed in selecting relays and contactors for a specific application.
They are used in large quantities for the indirect control of motors, valves, clutches and heating equipment. Much like a relay, a contactor is an electrically controlled switch. In addition to the simplicity which they offer in project engineering, panel building, commissioning and maintenance, the high. Cad32bd tesys d control relay, 3 no and 2 nc, 600 v, 24. If you see from the application point of view, you would have seen contactors placed in control panels of industrial motors or other heavy loads. Miniature and motor contactors, auxiliary contactors and. Abb offers a wide variety of discrete mediumvoltage apparatus to serve oems and to fulfill repair, retrofit and upgrade needs. How to wire a contactor steps with pictures wikihow pdf. Many devices called relays use similar techniques and topologies.
In applications where contact welding occurs almost every case can be. Gigavac sealed contactors rohs compliant, mx series. A contactor is used for switching of motors, capacitors, lights etc, that drains very high current. Contactors are similar to relays in functionality and the similarities to relays are explained.