The LTNS contactors are guaranteed for a
very high number of operations even in presence of shocks and vibrations. The
design and construction are based on the experience gathered in over 30 years
of production of bar type contactors. The "S" version is equipped with magnetic
blow-out coils and arc-chutes. The blow-out coils, when not otherwise
specified, are supplied for the nominal current of the contactors. Contacts of
main poles are designed for easy cleaning and replacement with normal tools.
The relative brushing of the contact's surfaces grants self cleaning and low
resistance. The arc chutes are asbestos free and are manufactured with shock
and electric arc resistant materials. Control circuit has been designed to
operate with Direct Current coils with wide working filed. A "Varistor" cuts
off the peak voltage when the coil is deenergized. When Alternate Current
feeding is required, it is possible to fit a silicon rectifier.
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