MODEL: MDPA-24
MDPA-24 SPECIFICATIONS
ES-8258 Rev.8 Page 1/4
http://www.m-system.co.jp/
Lightning Surge Protectors for
Electronics Equipment M-RESTER
LIGHTNING SURGE PROTECTOR FOR
STANDARD SIGNAL LINE & PULSE USE
Functions & Features
• Designed specifically for 4 – 20mA DC and
pulse signal line including both 4-wire and 2- wire
transmitters
• Life monitor function helps you to decide when you should
replace the surge protector; reduces maintenance and
prevents downtime
• Pressing CHK (Check) button confirms the degradation
and life span of the surge protection circuits with LEDs
• Absorbs surges only without affecting instrumentation
signal
• No interruption of signal by unplugging surge protector
element
M·
RESTER
MADE IN JAPAN
SER.NO
BAT
ALM
MODEL
MODEL: MDPA–24[1]
ORDERING INFORMATION
• Code number: MDPA-24[1]
Specify a code from below for [1].
(e.g. MDPA-24/BN/Q)
• Specify the specification for option code /Q
(e.g. /C01)
[1] OPTIONS (multiple selections)
Configuration
blank: With Base (model: SK-2E) included
/BN : Element only for replacement
(Not selectable with DIN rail mounting adapter)
DIN Rail Mounting Adapter
blank: Without
/A33: With adapter (model A-33)
Other Options
blank: none
/Q: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
RELATED PRODUCTS
• Base (model: SK-2E)
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M4 screw terminals (torque 0.8 N·m)
Screw terminal: Nickel-plated steel
Housing material: Flame-resistant resin (black)
Indicators: Activated by CHK (Check) button, see the status
table shown below.
BAT: Green LED
ALM: Red LED
Degradation judged: When the leakage current at the
voltage limiter exceed approx. 7.5 μA.
Life time judged: When the number of discharges of the
discharge element reaches the expected life span.
CHK button: Push button; momentary
Battery: Lithium; No recharge or replacement available.
Battery life: 10 years (when used ≤ 2 minutes/month)
Normal
: ON
*
1 : With pulsating line signal or that containing ripples, the LED may
flicker or blink when the voltage limiter is degraded.
: OFF
Normal
Discharged
Normal
Near End
End of Life
Unable to Judge
Normal
Degraded
*
1
No Need
Near
Battery
ALM
BAT
Discharge
Element
Voltage
Limiter
Replacement
Immediately
Required
INSTALLATION
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 85 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 150 g (0.33 lb), standard
175 g (0.39 lb), with DIN rail mounting adapter
PERFORMANCE
Max. continuous operating voltage (Uc):
Line to line: 30 V
Line to earth: ±160 V
Voltage protection level (Up):
• @ 1 kV (100 A)
Line to line: 45 V
Line to earth: ±650 V
