Contactors/Starters/Overload Relays & Accessories


  • CONTACTORS/STARTERS
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Powertech Controls is a global supplier of high quality electrical components, and is proud to offer the following lines of Contactors & Starters:
 
ABB
AEG
CUTLER HAMMER
EATON
FUJI
GE
KRAUS & NAIMER
LS INDUSTRIAL SYSTEMS
LOVATO
MOELLER
SPRECHER & SCHUH
WEG

Contactors and Starters are often grouped together because both control electric motors and have identical mechanical elements: Coil, contacts and arc chutes.
 
An easy way to remember the difference is that a Contactor is really just an overgrown relay.  It is an electrically controlled switch used for switching current on and off in a circuit.  The Contactor applies voltage to a contactor coil to close the contacts and either supply or interrupt power in a circuit.
 
A Starter, or Motor Starter, is a Contactor with the addition of an overload relay which is rated by motor HP or amperage.  The purpose of the overload is to protect the motor from load surges by shutting it down to prevent overheating.
 
Powertech Controls is a distributor of high quality electrical and electronic automation controls and components to the global market. Powertech's friendly, knowledgeable staff is committed to providing attentive service, forming strategic partnerships with our customers and vendors, and continually improving our operations. If you need information that you cannot find, please send a request for quote or contact us.