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:
Lightning surge protector ...................................................(1)
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MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
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INSTALLATION / INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, and basic main-
tenance procedure.
LIMITATION APPLICABLE TO M-RESTER
The M-RESTER will protect electronics equipment from
damage caused by lightning by absorbing most of the
surge voltages.
However, M-RESTER may not be effective against cer-
tain extremely high voltages caused by a direct or almost
direct hit by lightning.
M-RESTER must be installed according to this installa-
tion / instruction manual.
POINTS OF CAUTION
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ENVIRONMENT
• Indoor use
• When heavy dust or metal particles are present in the
air, install the unit inside proper housing and ventilate it.
• Do not install the unit where it is subjected to continuous
vibration. Do not apply physical impact to the unit.
• Environmental temperature must be within -5 to +55°C
(23 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
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DIELECTRIC STRENGTH TEST
• The discharge element incoporated in the M-RESTER is
grounded to its housing. Therefore, DO NOT CONDUCT
A DIELECTRIC STRENGTH TEST. If you do, the ele-
ment installed across the line and ground will start dis-
charging.
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RATED CURRENT
• Be sure that the rated current of protected equipment
does not exceed the maximum load current specification
of the MRESTER.
• Be sure to install a breaker which matches the current
rating at the power source side of the M-RESTER.
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AND ....
• We recommend that you keep spare M-RESTERs so that
you can replace them when necessary.
GENERAL
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DESCRIPTIONS
The MMAH protects electronic equipment from induced
lightning surges entering through power cables.
Even when surges exceeding the MMAH's discharge cur-
rent capacity hit it, it still protects the equipment, however,
the insulation of the discharge element may fails. In this
case the fuse is blown and the green Alarm LED turns off.
Replacing the M-RESTER is recommended because the
maximum surge voltage between lines increases up to 800V.
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SPECIFICATIONS
BETWEEN LINES
LINE TO
GND
MMAH-100 MMAH-200
Discharge voltage
190V min.
400V min.
680V min.
Max. surge voltage*
350V max. 750V max. 800V max.
Leakage current
≤4mA
@150V DC
≤4mA
@300V DC
≤0.1mA
@300V DC
Response time
4 nanosec.
Discharge current
20000A (8 / 20 µsec.)
Max. load current
10A
Internal series resist.
≤0.5Ω including return
*The maximum voltage that could pass through M-RESTER.
Protected equipment must be able to withstand this voltage
for a very short time period.
COMPONENT IDENTIFICATION
U
V
G
Terminals,
Protected Equipment Side
Body
Specification
Label
Terminals,
Cable Side
Alarm Indicator LED
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FRONT PANEL CONFIGURATION
U
V
G
u
v
SURGE
SIDE
PROTECT
SIDE
ALM
LIGHTNING SURGE PROTECTOR FOR POWER SUPPLY USE
(10A; high speed/high discharge current capacity)
MODEL
MMAH
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-8184 Rev.1 P. 1 / 3
INSTRUCTION MANUAL
