MODEL: MD7PL

MD7PL SPECIFICATIONS

ES-8062 Rev.7 Page 5/6

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

SCHEMATIC CIRCUITRY

Grounding

SHIELD TERMINAL

MODEL NO.

SCHEMATIC CIRCUITRY

APPLICATIONS

• Common:

Positive

• Line to SHLD:

Floating

• Earth to SHLD:

Floating

• MD7PL-PFFx

• PNP connection

• To protect a device having

isolation between Signal

and Earth.

• When SHLD should be

floating against the earth.

(single-end grounding)

• Common:

Positive

• Line to SHLD:

Floating

• Earth to SHLD:

Grounding

• MD7PL-PFGx

• PNP connection

• To protect a device having

isolation between Signal

and Earth.

• When SHLD should be

grounded. (single- or both-

end grounding)

• Common:

Negative

• Line to SHLD:

Floating

• Earth to SHLD:

Floating

• MD7PL-NFFx

• NPN connection

• To protect a device having

isolation between Signal

and Earth.

• When SHLD should be

floating against the earth.

(single-end grounding)

• Common:

Negative

• Line to SHLD:

Floating

• Earth to SHLD:

Grounding

Sections enclosed with broken line may differ depending upon the models.

• MD7PL-NFGx

• NPN connection

• To protect a device having

isolation between Signal

and Earth.

• When SHLD should be

grounded. (single- or both-

end grounding)

5

–

(COM)+

–

–

–

+

2

6

3

7

8

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

4

1

Series Resistance

(SHLD)

Surge Side

Protected Side

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

5

–

(COM)+

–

–

–

+

2

6

3

7

8

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

4

1

Series Resistance

(SHLD)

Surge Side

Protected Side

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

5

(COM)–

+

–

+

+

+

2

6

3

7

8

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

4

1

Series Resistance

(SHLD)

Surge Side

Protected Side

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

5

(COM)–

+

–

+

+

+

2

6

3

7

8

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

4

1

Series Resistance

(SHLD)

Surge Side

Protected Side

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL