MODEL: MDP-EC

MDP-EC SPECIFICATIONS

ES-8117 Rev.12 Page 1/3

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

Lightning Surge Protectors for

Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR FOR EC-CABLE USE

Functions & Features

• Designed specifically for M-System’s 32-point

Transmission System EC-CABLE

• Protects the transmitter model ECT and the receiver ECR

from lightning surges entering through the twisted-pair

cables connecting the both modules

• Applicable to transmission systems by current loops

• Absorbs surges only without affecting instrumentation

signal

• No interruption of signal by unplugging the protector

element

80 (3.15)

100

(3.94)

23.5 (.93)

mm (inch)

MODEL: MDP–EC[1]

ORDERING INFORMATION

• Code number: MDP-EC[1]

Specify a code from below for [1].

(e.g. MDP-EC/A33/Q)

• Specify the specification for option code /Q

(e.g. /C01)

[1] OPTIONS (multiple selections)

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

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)

INSTALLATION

Operating temperature: -5 to +55°C (23 to 131°F)

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

Mounting: Surface or DIN rail

Weight:

120 g (0.26 lb), standard

145 g (0.32 lb), with DIN rail mounting adapter

PERFORMANCE

Max. continuous operating voltage (Uc):

Line to line: ±12 V

Line to earth: ±500 V

Voltage protection level (Up):

• @ 1 kV (100 A)

Line to line: ±25 V

Line to earth: ±650 V

• @ 2 kV (1 kA)

Line to line: ±30 V

Line to earth: ±800 V

Response time: ≤ 0.1 μsec.

Leakage current:

Line to line: ≤ 10 μA @ ±12 V DC

Line to earth: ≤ 10 μA @ ±140 V DC

Max. discharge current (Imax): 5000 A (8 / 20 μs)

Internal series resistance: 20 Ω ±10 % (including return)

Capacitance @ 1 MHz:

Line to line: ≤ 1000 pF

Line to earth: ≤ 100 pF

Surge protection: IEC 61643-21 Categories C1, C2