422E データシートの表示（PDF） - ProTek Devices.
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422E Datasheet PDF : 5 Pages
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Only One Name Means ProTek’Tion™
typical device characteristics
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
PARAMETER
SYMBOL
Peak Operating Line Voltage
VOP
Operating Line Current
IO
Transient Voltage
-
Transient Current - 8/20µs waveform
-
Operating Temperature
TA
Storage Temperature
TSTG
Response Time
-
VALUE
±12
200
10
10
-55 to 100
-55 to 100
<1
422B - 422E
UNITS
Volts
mA
kV/Wire
kA/Wire
°C
°C
ns
PART
NUMBER
422B/E
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
MAXIMUM
CLAMPING
VOLTAGE
(8/20µs)
line-line
@ 500A
VC
±volts
MAXIMUM
CLAMPING
VOLTAGE
(8/20µs)
line-gnd
@ 500A
VC
±volts
maximum
line
throughput
resistance
r
ohms
MAXIMUM
LEAKAGE
CURRENT
@ 12vop
ID
µA
24.0
24.0
12
5
maximum
capacitance
@ 0v, 1mhz
c
pF
5000
installation instructions
There are five (5) terminals on the LINE SIDE and five (5) terminals on the EQUIPMENT SIDE of the 422E, 4 data lines and one ground. Both grounds are connected
together internally. A single low impedance is ground sufficient. Incoming data lines are cut or disconnected from the equipment to insert the 422E/B products. The
incoming lines are to be connected to the line side terminals as the equipment side lines are connected to the equipment side terminals. The location of the product
should be as close to the equipment as possible. The 422E/B series is designed with a short circuit failure mode to give maximum protection. A fuse, fusible link, or
circuit breaker is recommended for each data/signal line on the input side for those that require an open circuit failure mode.
Caution: A low DC resistance ground may not be indicative of a good lightning ground. Lightning contains a broad spectrum of frequencies up to 1 MHz. A low im-
pedance path to ground at the transient frequencies is necessary. A ground strap is recommended or a #6 AWG stranded wire. For wire lengths over 1.5 meters, there
may be some excessive line to earth potential under severe thunderstorm conditions.
05046.R4 12/10
Page 2
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