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<strong>Albright</strong> <strong>International</strong> Stud Contactor RangeStud Contactor OptionsThe options featured are available for our stud contactor series. For full descriptions, please refer to our Product Range catalogueor web site glossary.Enclosed Housing/Dust ShieldsMagnetic LatchingFuseholderCoil SuppressionA.C. Rectifier BoardArmature CapVacuum ImpregnationSteel Shroud - ‘EE’ TypeManual Override OperationAuxiliary ContactsLarge & Textured Contact TipsMagnetic BlowoutsAmp TagsM5 Terminal BoardFlying LeadsPlug ConnectionProtected ‘P’ Type<strong>Albright</strong> Stud Contactor Part NumberOperating CoilsOur stud contactor range is divided into series and then grouped into types based on thermal current specfication which arecomprised of contactor configurations e.g. Single Pole, Single Throw. The part number is completed by a unique identity numberand the specification of the contactor indicated by letter suffixes. The diagram below details the options and associated suffixeswhich are relevant to the stud contactor range. For a detailed description of options refer to the <strong>Albright</strong> Product Range Catalogue.Coil voltages ranging from 6 to 240v are available which are wound for D.C. operation. However, the majority of coils can be fittedwith a bridge rectifier for use with A.C. supplies. Coils are wound with pull-in voltages (coils at 20°C) approximately 66% of therated voltage (Continuous) or 60% (Prolonged, Intermittent Or Very Intermittent), and drop-out voltage nominally greater than 10%of the rated voltage. Variations from these pull-in and drop-out figures can be engineered to suit particular applications.Main TypeNumberV3 AuxiliaryContacts FittedSteel Shrouds fittedfor hazardousEnvironmentsFlying LeadsFittedReversedNon-polaritySensitive 3LargeContact TipsProtected to IP66Compliance 1SW80 A or C B EE E F N R - 43 L M P TCoil Ratings TerminologyContinuous (CO):• 100% duty cycle. Continuous operation. Weakest powercoil dictating that a weaker, when compared to theintermittent equivalent, return spring is used. This doesnot give the best switching characteristics for applicationsswitching frequently on load.Prolonged (PO):• Up to 90% duty cycle, up to 54 minutes continuousenergisation. Coil is more powerful than continuous,weaker than intermittent equivalent. The return spring isstronger than continuous but weaker than intermittent.AuxiliaryContactsFittedMagneticBlowoutsFittedEconomy CircuitFitted 21Specific types only, 2 SW120, SW121 & SW132 Series Only, 3 SW200 Series OnlyNo MagneticBlowouts 3PreciseIdentity NumberMagneticallyLatchedTexturedContact TipsIntermittent (INT):• Up to 70% duty cycle, up to 15 minutes continuousenergisation. High power in coil allowing strong returnspring to be used, giving good switching characteristics.Typically this rating is used with magnetic latchingcontactors.Highly Intermittent (HO):• Up to 25% duty cycle, up to 3 minutes continuousenergisation. Highest power in coil allowing strongestreturn spring to be used, giving good switchingcharacteristics.<strong>Albright</strong> <strong>International</strong> <strong>Ltd</strong>, Evingar Trading Estate, Ardglen Road, Whitchurch, Hampshire RG28 7BB, UKE-mail: sales@albrightinternational.com or technical@albrightinternational.com2 Tel: +44 (0)1256 893060, Fax: +44 (0)1256 893562 Dedicated Sales Tel: +44 (0)1256 890030, Fax: +44 (0)1256 890043Web Site: www.albrightinternational.com3
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