M-system MDP-D Series Instruction Manual

INSTRUCTION MANUAL
LIGHTNING SURGE PROTECTOR
FOR DC POWER SUPPLY USE
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)
DIN rail mounting adaptor* ...............................................(1)
Screws for DIN rail mounting (M4 × 8)* ...........................(2)
*Included with option code /A33
■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
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 12V/24V DC power supplies of
small capacity
• Absorbs surges only without affecting instrumentation
signal
• Monitor LED
■ SPECIFICATIONS
MDP-D12
Max. continuous
operating voltage (Uc)
Voltage protection level (Up)
Leakage current
@14V DC
Response time ≤ 4 nsec.
Max. line voltage
Max. discharge current (Imax)
Nominal current (I )
N
Internal series resistance
LINE TO LINE LINE TO
EARTH
MDP-D24
14V 27V ±160V
20V 40V ±650V
≤ 3mA ≤ 6mA ≤ 0.1mA
@27V DC @±160V DC
≤ 4 nsec. ≤ 20 nsec.
14V 27V ----
5000A (8 / 20 µs)
1A
≤ 0.6Ω 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
■ CONFORMITY WITH EU DIRECTIVES
• The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure the CE conform-
ity.
■ ENVIRONMENT
• When heavy dust or metal particles are present in the
air, install the surge protector inside proper housing with
sufficient ventilation.
• Do not install the surge protector where it is subjected to
continuous vibration. Do not subject the unit to physical
impact.
• 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.
■ DIELECTRIC STRENGTH TEST
• Loosen the screw located at the left-center of the element
and remove the element module from the base before
conducting a dielectric strength testing. Otherwise the
element will start discharging at a voltage exceeding the
max. continuous operating voltage (Uc), which can cause
insulation failure of the module.
Be sure to return the element and fasten securely after
the test.
■ AND ....
• We recommend that you keep spare surge protectors so
that you can replace them when necessary.
• Lightning surge can enter not only through power supply
lines but also through signal lines. We recommend that
you also use the surge protectors for signal line for suffi-
cient protection.
COMPONENT IDENTIFICATION
Head Element
Specifications
Monitor LED
Head Element is secured to Base
with screw when the surge protector
is shipped from Factory.
MDP-D
Base
Ground Terminal (G)
(used as mounting bracket)
EM-8203 Rev.2 P. 1 / 3