Solenoid Duty Cycles
'Continuously rated'
means that the solenoid can be left
on without overheating. The force
exerted and the power consumed are
then the basic continuous rating values
to which all other ratings are referred.
A continuously rated DC solenoid can
be left energised continuously, irrespective
of the plunger position.
In many applications a solenoid is
energised for only a short period
and then left switched off for some
time so that it can cool down. Under
these circumstances the solenoid coil
can be wound for much higher power
than the continuous rating value.
As a result, higher force can be obtained
with the proviso that the solenoid
is not continually energised. This
versatility in the amount of winding
wire needed to produce a solenoid
allows us to produce a range of low
cost solenoids to meet the cost sensitivity
of most applications
In some cases, solenoids
may be required for intermittent operation,
but not on a fixed time cycle. For
guidance on this, the maximum 'on
time' for the different ratings on
a single cycle basis is given. This
is the maximum time this particular
solenoid can be left energised when
starting from an ambient temperature
of 20ºC.
Applications for BLP Solenoids
Direct Acting
Our standard solenoid
range meets the widest possible range
of applications. Solenoids are available
in a variety of sizes and types -
Miniature, small, Heavy Duty, High
Force / Size Ratio, Combined Pull
and Thrust, Low noise.
Small Solenoids ( Low cost Solenoids
)
Our solenoids can
be found in the most diverse applications
- Photocopiers, Vending Machines,
Residual Current Devices, Locking
Mechanisms, Coin Mechanisms, Switching
Mechanisms, Valve Actuators and many
more. We have found that over the
years the requirement for small solenoids
has increased as electrical products
become smaller.
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