BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■
PACKAGE INCLUDES:
Surge protector ....................................................................(1)
Marking label ............................................................(1) sheet
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MODEL NO.
Check that model No. described on specifications matches
the operational line voltage and other specifications as
shown in ‘PERFORMANCE’ below.
■
INSTALLATION / INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
LIMITATION APPLICABLE TO MAL
The MAL will protect electronics equipment from dam-
age caused by direct or almost direct lightning by ab-
sorbing most of the surge voltages.
However, MAL may not be effective against certain ex-
tremely high voltages exceeding its discharge current
capacity (25kA @10/350µsec. waveform) caused by a di-
rect or almost direct hit by lightning.
The MAL must be installed according to this installation
/ instruction manual.
PERFORMANCE
Response time
: ≤ 50 nanoseconds
Maximum discharge current
: 25kA (10/350 µsec.)
MODEL
Uc
(AC) (V)
DISCHARGE
VOLTAGE
(V min)
Up
(Vmax)
MAL-230x
255
400
1000
MAL-400A
440
650
2000
Uc = Maximum continuous operational voltage
Up = Voltage protection level
Insulation resistance: ≥ 100MΩ with 500V DC
(line to alarm output)
Dielectric strength: 2000V AC @1 minute
(line to alarm output)
POINTS OF CAUTION
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INSTALLATION
• DANGER!
MAL is an IEC 61643-1 class I product. Install the surge
protector under following requirements.
1) When leading in the low voltage to the building which
external lightning protection device such as a lightning
rod and low voltage electronics equipment are connect-
ed with equipotential bonding.
2) In case the low voltage wiring is possible to be hit by the
direct or almost direct lightning.
• DANGER!
DO NOT perform an installation and wiring of the MAL
during thunder storms.
• Be sure to house the MAL inside a metal enclosure for
safety. Lightning is a natural phenomenon and this unit
could receive surges exceeding the discharge withstand
current rating. The MAL will be destroyed by such high
lightning energy.
• Indoor use. We recommend to install the MAL in a posi-
tion where to facilitate inspection and maintenance.
• DO NOT install the MAL where it is subjected to continu-
ous vibration. Do not apply physical impact to the MAL.
• Environmental temperature must be within -5 to +55°C
(23 to 131°F) and relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
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OPERATIONAL VOLTAGE
• DO NOT connect a power source of which the operational
voltage exceeds the MAL’s maximum continuous opera-
tional voltage, Uc value indicated on the specification la-
bel at the front.
• Be sure that the peak voltage does not exceed 1.4 times
the maximum continuous operational voltage. Distorted
waveform may have extremely high peak voltage.
■
DIELECTRIC STRENGTH TESTING
• Conduct the dielectric strength test with all power sup-
ply wires removed. The MAL will start discharging at
the described discharge voltage if a test voltage is applied
with all power supply wires connected. It will result in an
insulation failure.
■
AND ....
• We recommend that you keep spare MALs so that you can
replace them quickly when necessary.
ONE-PORT SURGE PROTECTOR FOR
POWER SUPPLY USE
MODEL
MAL
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-8162 Rev.1 P. 1 / 8
INSTRUCTION MANUAL
