MODEL: MD7AST

MD7AST SPECIFICATIONS

ES-8067 Rev.5 Page 4/4

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

SCHEMATIC CIRCUITRY

SHIELD TERMINAL

SCHEMATIC CIRCUITRY

APPLICATIONS

• Line to SHLD:

Floating

• Earth to SHLD:

Floating

• MD7AST-xFF

• Standard type

• To protect a device having

isolation between Signal

and Earth.

• When SHLD should be

floating against the earth.

(single-end grounding)

• Line to SHLD:

Floating

• Earth to SHLD:

Grounding

• MD7AST-xFG

• To protect a device having

isolation between Signal

and Earth.

• When SHLD should be

grounded. (single- or both-

end grounding)

Battery

CHK

Check

Button

Voltage Limiter

CT

BAT

(green)

ALM

(red)

DISCHARGE

ELEMENT

Series Resistance

Surge

Counter

Leak. Curr.

Detector

5

–

+

–

+

2

6

3

7

8

4

1

(SHLD)

Surge Side

Protected Side

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

DISCHARGE

ELEMENT

Battery

CHK

Check

Button

Voltage Limiter

CT

BAT

(green)

ALM

(red)

DISCHARGE

ELEMENT

Series Resistance

Surge

Counter

Leak. Curr.

Detector

5

–

+

–

+

2

6

3

7

8

4

1

(SHLD)

Surge Side

Protected Side

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

Specifications are subject to change without notice.