MODEL: MDM2A-24

MDM2A-24 SPECIFICATIONS

ES-8214 Rev.8 Page 2/3

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

(surge protector circuit to power to ground)

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

Maximum line voltage: 30 V

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

Low Voltage Directive

EN 61010-1

Measurement Category II (alarm output)

Installation Category II (power)

Pollution degree 2

Surge protector circuit to power:

Reinforced insulation (300 V)

RoHS Directive

CONNECTION EXAMPLES

M-RESTER

4 – 20mA

Protected Equipment

4

5

1

V

U

2

11

10

6

FG

Surge Protector

for Power Supply Line

To POWER

SOURCE

ALARM OUTPUT

PWR

G

7

8

9

FG

G

U

(+)

V

(–)

Crossover

Wiring

Crossover Wiring

Be sure to cross-wire as indicated above.

Grounding

(100Ω or less)

CABLE SIDE

(surge side)

+

–

+

–

+

–

+

–

GROUNDING

M-RESTER

PROTECTED

EQUIPMENT

G

G

CROSSOVER WIRE

GROUNDING

(100 ohms or less)

A crossover wire between M-RESTER ground and ground or metallic

housing of equipment is required for protection.

If the protected equipment has no ground terminal, ground the

M-RESTER only.