MODEL: MD7AP

MD7AP SPECIFICATIONS

ES-8069 Rev.6 Page 2/2

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

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°

MONITOR LED

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

5

2

6

3

7

8

INDICATOR

CIRCUIT

4

5

6

8

4

1

2

3

7

1

Surge

Side

Surge

Side

Protected

Side

Protected

Side

AC Power

Supply

(protected)

Electronic

Device

(protected)

FG

U

V

MONITOR LED

SAFETY

FUSE

MONITOR LED

INDICATOR

CIRCUIT

FG

U

V

M-RESTER

M-RESTER

*4

*5

*1. 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.

*2. Be sure to ground the DIN rail. Recommended grounding resistance ≤100Ω

*3. Cross-wire between the DIN rail and the metal housing of the protected device to equalize the earth potential.

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

*4. Use an AC power source with the overload current protection function. (maximum output current 3A)

*5. Install a current limiting element (capacity 3) when the output current exceeds 3A.

SAFETY

FUSE

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

Crossover Wire

*1

*1

*2

*2

*3

Crossover Wire*

3

SAFETY

FUSE

SAFETY

FUSE

SAFETY

FUSE

SAFETY

FUSE

Specifications are subject to change without notice.