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The HE1700 has been specifically
designed for use type 170
controllers although it may be used
on NEMA controllers. Because of the
high quality of this protector, it
may be used as a stand-alone device
without the use an external line
filter. If an external line filter
is required, it is recommended that
a HESCO/RLS line filter be used.
The HE1700 is a multi-stage,
high-energy suppressor that
incorporates a sophisticated, inline
EMI/RFI filter. The inline filter
has been designed to effectively
reject random noise and spikes from
10KHz to 25MHz. The primary and
secondary clamp stages are separated
by an inductive network, yet worssk
together to give clamp voltages of
under 395 volts at 20KA (8 x 20us).
If random data base memory loss
or any other transient interference
is effecting the safe operation of
one or more of your intersections,
the HE1700 surge protector will
quickly and effectively eliminate
the problem.
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