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Description.......
These
electromagnets have been expressly studied and realized
for the control of oleodynamic valves in the elevators
and hoists busines field.
They have a keeper sliding in a cylinder. The keeper
movement takes place from the initial to the final
position by means of the electromagnetic force, while
the reverse motion is operated by a different force,
normally a spring.
The assembly position is irrelevant, but the power
outlet must be set in the axial sense only, otherwise,
in the presence of a side load, a considerable wear
of the cylinder in which the keeper slides would occur.
These appliances consist of an electrical part and
a waterproof mechanical part. The electrical part
is costituted by a coil encapsulated with two windings,
an operating one and a 12 Vdc emergency one with the
connector electric contacts complying with DIN 43650
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