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Manufacturers : Electronic components : Relays : Motor starters and contactors

Circuit interrupters are electrically operated switches used for controlling motors and other types of electrical loads. Circuit interrupters include contactors, motor starters, motor controllers and other electromechanical switching devices. A contactor with an overload protection relay system is called a motor starter. The overload relay provides overload protection to the motor from overload conditions. Overload conditions occur when equipment is operated in an electrically undamaged circuit in excess of normal full-load rating, or when conductors carry current in excess of rated ampacity. There are various types of electric motor starters, such as a switching contactor, and a thermal relay. A manual motor starter is provided with a detecting section for detecting a fault current, a switching mechanism operated responding to a detection signal from the detecting section, a contact section interlocked with the operation of the switching mechanism to open or close a current path, and an arc extinguishing section for extinguishing an arc generated when contacts of the contact section are opened. The manual motor starter is also called a motor protection power-circuit breaker. Solid state motor starers control the stopping and staring of electrical motors by gated semiconductor devices such as SCRs or other thyristors. Electromagnetic contactors include a plurality of movable electrical contacts which are brought into contact with a plurality of fixed electrical contacts to close the contactor and connect a power line to the load.

Listings on Electronic components : Relays : Motor starters and contactors

  • Air Starter Components, Inc.
    Offers a comprehensive line of air and gas starters suitable for most engine applications, remanufactured / exchange air starters, eplacement parts for all popular starter brands, bendix drives, internal replacement parts, external housings, repair kits, friction-clutch inertia starter drives, and accessories. USA.

    http://www.ascairstarter.com
  • Bhartia Industries Limited
    Manufactures low voltage electrical and electronic controls, including contactors, overload relays, DC mill duty contactors and overload relays, motor starters, motor protection circuit breaker, plug-in relays, solid state relays, plugs and sockets, moulded case circuit breakers, switch disconnector fuse units, limit switches, push buttons, indicating lamps and LED indicators, electronic timers, pneumatic timers, foot switches, electronic sensors, counters & special purpose relays, programmable logiccontrollers, digital AC drives, digital DC drives, soft starters, brakes, enclosures & boxes, resistors, thyristor control panels, battery chargers, and special purpose starters. India.

    http://www.bchindia.com
  • Darrah Electric Company
    Manufacturer of DC power supplies for the plating and metal finishing industries. Products include power semiconductors, power semiconductor assemblies, SCR contactors for resistance welding, resistance welding safety labels, plating rectifiers, SCR firing boards, current & voltage sensors, power semiconductor solutions, heat sinks/extrusions, bar clamps for disk-type devices, semiconductor testers, gateturn-off thyristors. USA.

    http://www.darrahelectric.com
  • Darrah Electric Company
    Manufacturer of DC power supplies for the plating and metal finishing industries. Products include power semiconductors, power semiconductor assemblies, SCR contactors for resistance welding, resistance welding safety labels, plating rectifiers, SCR firing boards, current & voltage sensors, power semiconductor solutions, heat sinks/extrusions, bar clamps for disk-type devices, semiconductor testers, gateturn-off thyristors. USA.

    http://www.darrahelectric.com
  • Enerpro, Inc.
    Produces motor starters, battery monitoring and control systems, SCR assemblies, firing boards, snubber boards, regulator boards, test equipment, and controller packages. The company also manufactures fully integrated assemblies including power supplies, rectifiers, and battery chargers as well as control boards and firing boards for OEM applications. USA.

    http://www.enerpro-inc.com
  • Functional Devices, Inc.
    Produces commercial energy management systems, relays, current sensors, power control, contactors, enclosures, sub-panels, power supplies (one or two transformers pre-packaged in a metal enclosure and intended for mounting in the enclosure), transformers (ranging from 20VA to 375VA are foot or hub mounted), and accessories (plastic track for snap-mounting circuit boards, external sensors, lock assemblies, drill screws, and keys). USA.

    http://www.functionaldevices.com
  • Hilliard Corporation
    Offers a broad line of motion control products, oil filtration and reclaiming equipment, starters for industrial gas, diesel engines and gas turbines, and plate and frame filter presses used in the food and beverage industry. Products include motion control engineered clutches, brakes, brake systems, engine starter, fluid filtration equipment, oil reclaimers, mist eliminators, and filter cartridges. USA.

    http://www.hilliardcorp.com
  • Schaltbau Electric America
    Designs, manufactures, distributes and supports electromechanical components, equipment and systems worldwide for railway, transit and industrial applications. Offers AC/DC contactors, snap action switches, charging connectors for batteries, military connectors, master controllers, cam switcher, limit switches, control panels, switching elements, over temperature protection devices, disconnecting and earthing devices, figh voltage contactors and over temperature protection devices. USA.

    http://www.schaltbau.net
  • Selectric, Inc.
    Manufactures electric motor controls for pumping and industrial applications, products include magnetic starters, across the line combination controllers, partwinding panels, autotransformer combination panels, fused disconnect switch, pivot disconnect panel, auto-vacuum prime system, and power factor correction capacitors. USA.

    http://www.selectricinc.com
  • SOFTAC Systems Ltd.
    Manufacturer of optimized scanning systems and industrial drives for the lumber industry. Products include PLC sorter controls, reduced voltage starters, DC injection brakes, lumber handling equipment, edger, trimmer and canter scanning systems, grade scanning and carriage drives. Canada.

    http://www.softacsys.com
  • Taian Jaya Electric Sdn Bhd
    Manufacturer of A. C. magnetic contactor, thermal overload relay, direct on line motor starter, reversing magnetic contactor, auxiliary contact block, star delta starters, and control panel accessories. ALso a supplier of moulded case circuit breaker, inverter, programmable logic controller, and high voltage accessories.

    http://www.taian-jaya.com
  • TECO-Westinghouse Motor Company
    Manufacturer of electric motors, with a full line of induction, synchronous and DC motors and generators available from ?HP to 100,000 HP, also supplymedium voltage soft starter, solid state starter, general purpose AC inverter, and adjustable speed drive. USA.

    http://www.tecowestinghouse.com

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2009 Electronics manufacturers directory • (Motor starters and contactors section) • Site map