MODEL: MD7PA

MD7PA SPECIFICATIONS

ES-8056 Rev.11 Page 2/3

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

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

RoHS Directive

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

8

6

5

4

1

2

3

7

4

1

5

2

6

3

8

7

7

[.28]

98 [3.86]

(1.5 [.06])

8–M3 EURO

TERMINAL

DIN RAIL

(35 mm wide)

DIN RAIL

ADAPTOR

WIRE INSERTION ANGLE: approx. 20°

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

PA BUS

5

2

6

3

7

8

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

4

1

Series Resistance

(SHLD)

Surge Side

Protected Side

Protected Device

M-RESTER

SHLD

FG

+

–

*2

*1

*1. Choose the grounding (FG) when the shield wire is to be grounded.

*2. When SHLD is not isolated from PA BUS, DO NOT connect the surge protector’s terminal 7 to SHLD.

*3. Oxide film on the surface of an aluminium rail may lower the electric conductivity between this module and the ground.

Use a steel or copper rail.

*4. Be sure to ground the DIN rail. Recommended grounding resistance max. 100 ohms.

*5. Cross-wire from the DIN rail to the metal housing of the protected device to equalize the ground potential.

Ground only the surge protector when the protected device has no grounding terminal.

PA BUS

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

*3

*4

Crossover Wire*5