MODEL: MMAJ

MMAJ SPECIFICATIONS

ES-8155 Rev.3 Page 2/3

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

PERFORMANCE

Surge protection: IEC 61643-1 Class II, III

MMAJ-100xxx

MMAJ-200xxx

Max. Continuous Operating Voltage (Uc)

132V AC

264V AC

85 – 132V AC

170 – 264V AC

Discharge Voltage (Vmin)

Line to line: 190V

Line to earth: 300V

Line to line: 380V

Line to earth: 450V

Voltage Protection Level (Up)

900V

1500V

Leakage Current @ Uc

Line to line: Without Alarm 6mA, With Alarm 20mA

Line to earth:

Nominal Discharge Current (In)

MMAJ-xxL: 5kA

MMAJ-xxM: 10kA

MMAJ-x10: 10A

MMAJ-x20: 20A

MMAJ-x30: 30A

Voltage Drop

≤1V

Surge Energy Attenuation Ratio @8/20 µs

(Line to earth)

MMAJ-10010: -56 dB

MMAJ-10020: -56 dB

MMAJ-10030: -40 dB

MMAJ-20010: -53 dB

MMAJ-20020: -53 dB

MMAJ-20030: -40 dB

Response Time (Line to line)

3 nsec.

Insulation Resistance

≥100MΩ with 500V DC (line to alarm output to housing)

Dielectric Strength

2000V AC @1 minute (line to alarm output to housing)

*1. MMAJ is operational as an SPD despite the voltage less than the minimum. However, the functions of the monitor LED

and the alarm output are not guaranteed.

*2. Refer to Derating Curve

■ DERATING CURVE

100

50

0

-5

0

20

40

60

55

20A

30A

10A

Ambient Air Temperature (°C)