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Designed
for manual actuation applications, these switches come in a variety
of configurations and functions when coupled with our E, C and D
series brackets. A and B series switches are momentary and come
in three button heights.
These
basic switches are available in two grades: military and industrial.
The military switches are encased in neoprene and meet or exceed
all applicable government specifications. The industrial waterproof
switches are encased in Santoprene thermoplastic rubber and meet
IP68 and UL/CSA recognition. Both are available in a variety of
configurations including 2 or 3 wire, and 2 or 3 conductor cable
with special terminations and coil cords. CPI also offers a full
line of stainless steel and thermoplastic mounting brackets and
actuators (See E, C,D and H Series brackets)
Our
momentary switches are available in three different button heights.
This allows the design engineer to select the appropriate tactility
for a particular application.
The
CPI Snap-Action Contact
The internal switching mechanism for these switches is a snap-action
copper sine blade spring with a riveted contact. The standard contact
material is silver alloy with gold alloy and gold plated silver
contacts available upon request.
The
CPI snap action waterproof switch represents a design unique among
snap action switches. Its most distinguishing feature is the sine
blade spring, which permits higher contact pressure, resulting in
longer life and high current carrying capability.
Made
of beryllium copper, the sine blade consists of a reversing helix,
a lever and a molecular hinge supporting the contact lever.
The
sine spring is supported at both ends and mounted to pre-stress
the blade. Individual calibration of each switch assures accuracy
and repeatability. Permanent riveted mounting replaces V-grooves
which can wear. The two mounting supports, combined with the contact
and pressure point support on the blade, produce uniquely high vibration
and shock resistance.
When
actuated, the two halves of the blade reverse stress and cause an
extremely fast snap at a precisely repeatable point.
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