M-system MMA Instruction Manual

INSTRUCTION MANUAL
LIGHTNING SURGE PROTECTOR FOR POWER SUPPLY USE
(10A; high discharge current capacity)
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)
■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ 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.
GENERAL
■ FUNCTION & FEATURES
• Designed specifically for AC power supplies up to 10 amps
• Discharge current capacity 10000A
• Absorbs surges only without affecting instrumentation
signal
• Indicator LED turns off with surge absorber anomaly
• Fuse provided for preventing ignition caused by failure of
surge absorber
■ SPECIFICATIONS
BETWEEN LINES
MMA-100
Discharge voltage 190V min.
Max. surge voltage* 350V max.
Leakage current ≤4mA
@150V DC
Response time
Discharge current
Max. load current
Internal series resist.
*The maximum voltage that could pass through M-RESTER.
Protected equipment must be able to withstand this voltage
for a very short time period.
LINE TO
GND
MMA-200
410V min. 680V min.
700V max. 800V max.
≤4mA ≤0.1mA
@300V DC @300V DC
≤0.01 µsec.
10000A (8 / 20 µsec.)
10A
≤0.5Ω including return
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
MODEL
POINTS OF CAUTION
■ ENVIRONMENT
• When heavy dust or metal particles are present in the at-
mosphere, install M-RESTER inside proper housing and
ventilate it.
• Do not install the M-RESTER where it is subjected to
continuous vibration. Do not apply physical impact to the
M-RESTER.
• Environmental temperature must be within -5 to +55°C
in order to ensure adequate life span and operation.
■ WIRING
• The discharge element incoporated in the M-RESTER is
grounded to its housing. Therefore, DO NOT do an insu-
lation test. If you do, the element will start discharging
between line and ground at the discharge voltage value.
■ RATED CURRENT
• Be sure that the rated current of protected equipment
does not exceed the maximum load current specification
of the M-RESTER.
• Be sure to install a breaker which matches the current
rating at the power source side of the M-RESTER.
■ AND ....
• We recommend that you keep spare M-RESTERs so that
you can replace them when necessary
COMPONENT IDENTIFICATION
Body
Specification
Label
Terminals,
Cable Side
U
V
G
Alarm Indicator LED
■ FRONT PANEL CONFIGURATION
SURGE
SIDE
U
V
G
MMA
Terminals,
Protected Equipment Side
PROTECT
SIDE
u
v
ALM
EM-8173 Rev.5 P. 1 / 3