A contactor is an electromechanical switching device used to establish and interrupt connections characterized by high electrical current loads.
Contactors have significant switching capacity. They are used with industrial motors and other high-current-load devices.
These devices return to their default position if the control circuit is not energized. If the contacts are normally closed, it is called a breaker. They can have from one to four poles.
The control circuit uses an electromagnet to open and close primary and secondary contacts by attracting the moving core, which contains a dynamic circuit and an attraction coil. Some include arc suppression. The auxiliary contacts are used to energize the contactor and for signal and control tasks. They can be instantaneous or delayed action, normally open or normally closed.
Categories run from AC-1 to AC-4 and DC-1 to DC-5, based on current type and load capacity.
Static contactors use semiconductor technology and have no moving parts. They are faster than electromechanical models but have lower load capacity.
Choice will depend on category, control mechanism, duty ratio, frequency of operation and electrical endurance.
 |
 |
DC contactor 5TT5 7 Insta SIEMENS Low-Voltage & Products
Insta Contactors, DC Technology Insta Schütze, DC-Technik 5TT5 7 5TT5 7 Insta contactors, DC technology Insta contactors are standard devices in installation technology and belong to the BETA switching device range. Insta contactors...
 |
 |
Lift switch max. 30 m | USP 30 series SCHMERSAL
for shaft heights up to 30 m Different interfaces for the...
 |
  |
Contactor DILM series Eaton Moeller
Eco contactors New compact Eco types: DILM15, DILM38, DILM72 and DILM170 Eaton has extended its contactor range with high-performance and cost-optimised Eco types with the new DILM15, DILM38, DILM72 and DILM170 contactors. The...
 |
 |
Contactor relay 220 VDC, 10 A | MK-S(X) OMRON Electronics
DC-switching Relay up to 220VDC, 10A(resistive load) The MK-S(X) is the smallest relay in the world that can switch 220VDC 10A resistive load....
 |
 |
Magnetic contactor MITSUBISHI Automation
Compact dimensions, modular expansion options and a power-saving design - those are the key characteristics of Mitsubishi's low-voltage...
 |
 |
Magnetic contactor max. 800 A | MS/N series MITSUBISHI ELECTRIC AUTOMATION
We offer a complete line up of Motor Controllers to 800A in size. Products are UL and CSA approved as well as meeting the standards of all major markets around the world. A full range...
 |
 |
Electronic motor contactor 4 - 500 kW | J7KN Omron Europe
Motor contactors from 4-500kW for normal and heavy-duty switching. This modular system consists of main contactors and additional contact blocks. The basic...
 |
 |
Modular contactor 16 - 100 A | CT Schneider Electric - Automation and Control
Rating: 16 to 100 A Number of poles: 1P+N for CT+; 1P, 2P, 3P, 4P for CT Compliance with standards: EN 669-2-1 for CT+;...
 |
 |
Contactor 400 - 575 V | 100S/104S, 700S series Allen-Bradley
Bulletin 100S/104S IEC Safety Contactors and 700S Safety Control Relays provide mechanically linked, positively-guided...
 |
 |
Solid state contactor 156-B series ROCKWELL AUTOMATION
Bulletin 156-B Solid-state Contactors complement our line of Bulletin 700 solid-state...
 |
 |
Capacitor heavy duty contactor NEMA Eaton Count Control Products
Typical applications for NEMA Rated Mill Duty Contactors are variable voltage controller, disconnects,...
 |
 |
Electronic motor contactor 1 200 - 1 350 A Allen Bradley
We offer a full line of versatile IEC contactors. The Bulletin 100-C offers space-saving...
 |
 |
Electronic motor contactor max. 45 kW, DIN | J7KN OMRON
Motor Contactors from 4 to 110 kW for normal and heavy-duty switching. Consists...
 |
 |
Miniature switches are mainly used in automation or home appliance applications...
 |
 |
Motor reversing contactor UG 9256 DOLD
The new reversing contactor UG 9256 of the DOLD POWERSWITCH series controlls economically 3-phase motors up to 4 kW. It includes up to 5 functions in one 22,5 mm wide enclosure. This safes material cost...
 |
 |
Modular contactor SV series ETI
Application : Build-in switch is used as a main switch in distribution boxes in houses or as a switch for individual electric circuits. With...
 |
  |
Contactor 53 series Werner Electric GmbH
Contactors Keywords: Contactors, relay contactor, magnetic contactors, motor contactors, contactor coil, dc contactor, ac contactor, ac contactor, contactor, ac contactors WERNER'S 53 series general purpose contactors are most robust, economical and readily accepted by all segments of industries where a prime mover is involved. It is an electro-mechanical switch to start a motor. Features Overview *...
 |
 |
Solid state contactor SSC GREEGOO ELECTRIC CO LTD
Solid State Contactor (SSC) is newlydeveloped SSR application unit that is created by following the AC contactor using mode. It is based on power SSR and equipped with radiator, protection housing, mounting clip, etc. It is a control integration...
 |
 |
Vacuum contactor VC - MVC - CS-VP CG Power Systems
VACUUM CONTACTOR Product Overview CG commenced manufacturing of vacuum contactors in the year 2001-02. This technology has been developed in-house by CG. The vacuum contactors...
 |
 |
Description The auxiliary contactors on CWCA0 series were developed to suit various applications in control circuits. Main Features - Minicontactor...
 |
 |
High current contactor Druseidt
High Current Contactors for work rod systems Some Features of Druseidt High Current Contactors Contactors used around tanks in galvanising or anodising operations are subject to high levels of electrical, mechanical and sometimes chemical loads. For long lasting operation, these components must retain low transfer resistance to ensure current dependent tank parameters and also to avoid energy...
 |
 |
Solid state contactor 24 - 600 VAC, 12 - 50 A | SAL series celduc relais
Power Solid State Contactor 22,5mm Solid State Contactor for space-saving design. Ready to use with its heatsink Zero Cross Solid State Contactor specially...
 |
 |
DC contactor 50 A DC | C137 Schaltbau
Home Products Contactors Compact Contactors for Battery Voltages C137 C/ 24 RX Contactor for battery voltages Single-pole...
 |
 |
Miniature contactor Iskra Sistemi
Contactors are used for switching electric motors and other resistive, inductive and capacitive loads. A wide variety of snap-on auxiliary switch blocks and accessories Uniform marking of terminals in accordance with the EN 50005 and EN 50011...
 |
 |
Three-phase AC contactor max. 95 A, 660 V | GMC series Yueqing Hean Electrical Co., Ltd.
GMC series AC Contactor is suitable for using in the circuits up to the rated voltage 660V AC 50Hz or 60Hz, rated current up to 95A,...
 |
 |
Lift devices For more than 20 years Pizzato Elettrica has been producing a wide range of position switches extensively used on the lift sector. Its evident reliability and its quality-price ratio have made Pizzato products the first choice of the most...
 |
 |
Reed switch EN62246, IEC62246, UL, 3A, 5A Yaskawa Controls
The Bestact reed element is a highly reliable, broad control range reed switch that when used and implemented in various...
 |
 |
Reed switch 15 - 40 AT, ø 0.1 x 0.5 in | RI-90 The Comus Group
Specifications Contact Form: C Switching Capacity:...
 |
 |
DC contactor 80 - 6 200 A Mersen
The CBC Bar Contactor is ideal for use in DC applications including, lifting magnets, lifts, electroplating,...
 |
 |
Safety contactor with locking device 8 A, 25 - 250 V, max. 3.5 W | C4CK COMITRONIC - BTI
CAPTIVE KEY MODULE : the key position overpasses the switch status Version...
