MODEL: MD7DP

MD7DP SPECIFICATIONS

ES-8052 Rev.8 Page 1/2

https://www.m-system.co.jp/

Lightning Surge Protectors for

Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR FOR

DC POWER SUPPLY

(max. 1.2 A; ultra-slim)

Functions & Features

• High discharge current capacity 20 kA (8/20 μs), 1 kA

(10/350 μs)

• Ultra-thin 7-mm-wide module can be mounted

in high density

• Excellent protection employing multi-stage SPD circuits

• DIN rail mounting and grounding

• Shield terminal provided

7 [.28]

98

[3.86]

mm [inch]

95

[3.74]

MODEL: MD7DP-[1][2]

ORDERING INFORMATION

• Code number: MD7DP-[1][2]

Specify a code from below for each of [1] and [2].

(e.g. MD7DP-24/Q)

• Specify the specification for option code /Q

(e.g. /C01)

[1] NOMINAL VOLTAGE

12: 12 V DC

24: 24 V DC

[2] OPTIONS

blank: none

/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

GENERAL SPECIFICATIONS

Construction: Slim-sized front terminal structure

Degree of protection: IP20

Connection: Euro terminal block (torque 0.3 N·m)

Grounding: DIN Rail

Housing material: Flame-resistant resin (black)

Monitor LED: Green LED turns ON when the voltage is

supplied; OFF when the safety fuse is blown.

INSTALLATION

DC power supply: Max. output current 1.2 A

Caution: Use a DC power source with the overload current

protection function.

Operating temperature: -25 to +85°C (-13 to +185°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: DIN Rail (TH35-7.5, 1-mm-thick)

Oxide film on the surface of an aluminium DIN rail may

lower the electric conductivity between this module and the

ground. Use a steel or copper rail.

Weight: 70 g (2.5 oz)

PERFORMANCE

LINE TO LINE

LINE TO

EARTH

MD7DP-12 MD7DP-24

Max. continuous

operating voltage (Uc)

14V

27V

±160V

Voltage protection level

(Up) @4kV (1.2 / 50 µs)

±150V

±170V

±1200V

Leakage current @Uc

≤ 6mA

≤ 6mA

≤ 5µA

Response time

≤ 4 nsec.

≤ 4 nsec.

≤ 20 nsec.

Max. discharge current

(Imax)

20kA (8 / 20 µs)

1.0kA (10 / 350 µs)

1.2A

Internal series resistance

≤ 0.8Ω including return

Surge protection

IEC 61643-21 Categories C1, C2, D1

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

RoHS Directive