II20X
375V
series
surge
protectors
protect
against
surges
affected
by
indirect
lightning
and
direct
lightning
The
main
technical
parameters
Model
and
specification
U1-II20X
|
Uc(VAC)Maxi
continuous
operating
voltage
|
750,420,385,320,275
Vac
|
|
Up(kV)Voltage
protective
level
|
2.5,1.8,
1.2,
1.4,
1.2
kV
|
|
(8/20μs)Imax(kA)Maxi
discharging
current
|
20kA
|
|
(8/20μs)In(kA)Nominal
discharging
current
|
10kA
|
|
response
time
|
≤25ns
|
|
Signal
deterioration
indication
|
off-work；on-replace
|
|
Housing
Material
|
Red
thermoplastic
material
|
|
Housing
self-extinguishing
class
|
UL94_V0
|
|
Temperature
range
|
-40℃～+80℃
|
|
humidity
range
|
5%～95%
|
|
Elevational
|
≤3000m
|
|
Method
of
connecting
wire
|
multiple(Connect
In
Parallel
)
|
|
Thread
Dimensions
|
1.5mm2～35mm2
|
|
Mounting
method
|
35mm
standard
rail
installation
|
|
IP(degree
of
protection
of
enclosure)
|
IP20
|
Product
Features:
combination
type
SPD
The
smallest
size
single
phase
surge
protector
of
Iimp:
20KA
；
only
27mm
width,
save
space;
Sealed
metal
air
gap
technology,high
energy
electronic
trigger
discharge
gap,
with
the
ability
to
block
continuous
flow
Low
output
residual；
fast
response
time
(≤25ns);
Installation
◆
Installed
at
the
junction
of
LPZ1
or
LPZ2
zone
and
LPZ3
zone
using
35mm
standard
quide
rails,connecting
copper
stranded
wires
with
2.5~16mm².
◆Each
pole
of
SPD
must
be
protected-use
fuses
or
miniature
circuit
breakers
or
special
backup
protectors.
◆Suitable
for
household
distribution
boxes,computer
equipment,and
information
equipment.
In
front
of
or
nearest
socket
box
of
electronic
equipment
and
control
equlipment
Main
structure
and
working
principle
◆
SPD
is
a
port,
anti-shock
protection,
indoor
fixed
installation,
voltage
limited
type.
◆
SPD
has
a
built-in
disconnector.
When
the
SPD
falls
due
to
overheating
or
breakdown,
the
disconnector
can
automatically
disconnect
it
from
the
power
grid
and
give
an
indication
signal
at
the
same
time.
◆The
visible
window
displays
green
when
the
SPD
is
working
normally,
and
displays
red
when
it
fails
to
disengage.
◆1P+N,2P+N,3P+N
are
composed
of
1P,2P,3P
SPD+NPEzero-ground
protection
modules,
which
are
used
in
TT,TN-S
and
other
power
supply
systems.
The
combination
type
SPD
characteristics:
HDU1-II20X
series
Surge
protector
device
(hereinafter
referred
to
as
SPD)
is
used
for
power
supply
systems
such
as
IT,
TT,
TN-C,
TN-S,TN-CS,
etc.
for
low-voltage
AC
distribution
systems,
for
indirect
lightning
and
direct
lightning
or
other
A
surge
of
transient
overvoltage
is
protected.
The
SPD
has
a
common
mode
(MC)and
differential
mode
(MD)
protection.
The
SPD
complies
with
GB/T18802.1/EC61643-Il.
