MODEL: MMAJ
Lightning Surge Protectors for
Electronics Equipment M-RESTER
[4] ALARM OUTPUT
A: With
Y: Without
LIGHTNING SURGE PROTECTOR
GENERAL SPECIFICATIONS
Construction: Wall-mounted, front terminals; terminal cover
FOR POWER SUPPLY USE
(fast response: 3 nsec.)
provided
Functions & Features
Surge protection type: Surge energy limiting type two-port
• Designed to protect equipment from induced
lightning surges entering through power supply cables
• High discharge current capacity type with a
maximum of 20 kA is available.
SPD
Connection
Line: M4 screw terminal (torque: 1.2 N·m)
Alarm output: Tension clamp
• Degraded head element is automatically separated from
the power lines by the incorporated thermal breaker, and
the LED lamp (turns off) and the relay contact alert the
failure status.
Applicable wire size: 0.33 to 1.5 mm
(6 to 7 mm exposed)
Screw terminal: Nickel-plated steel
2
2
Housing material: Steel plate t = 1.2 (black)
Alarm output: SPDT relay contact trips when the thermal
breaker operates.
• Conforms to IEC 61643-1 Class II, III
88
(3.46)
•Normal
Output terminal A1 – C: Open
Output terminal A2 – C: Close
Surge
Side
Protect
•Thermal breaker operating or power off
Output terminal A1 – C: Close
Side
80
(3.15)
U
u
v
V
Output terminal A2 – C: Open
PE
Monitor
A2
A1
C
Rated load:
ALM
139
250 V AC @1 A (cos ø = 1)
(5.47)
24 V DC @1 A (resistive load)
mm (inch)
Maximum switching voltage: 250 V AC or 24 V DC
Maximum switching power: 250 VA or 24 W
Minimum load: 5 V DC @ 20 mA
MODEL: MMAJ-[1][2][3][4]
Safety function: Thermal breaker incorporated
Monitor LED: Green LED; ON in normal conditions OFF in
failure conditions (power off or thermal breaker operating)
ORDERING INFORMATION
• Code number: MMAJ-[1][2][3][4]
Specify a code from below for each [1] through [4].
(e.g. MMAJ-10020MA)
INSTALLATION
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface
[1] OPERATIONAL VOLTAGE
100: 100 V / 110 V / 120 V AC
Weight: 1.6 kg (3.5 lb)
200: 200 V / 220 V / 240 V AC
[2] LOAD CURRENT
10: 10 A
20: 20 A
30: 30 A
[3] MAXIMUM DISCHARGE CURRENT
L: 10 kA
M: 20 kA
MMAJ SPECIFICATIONS
ES-8155 Rev.3 Page 1/3
http://www.m-system.co.jp/