MMAJ MSYSTEM | Alldatasheet

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Technical content

MODEL: MMAJ MMAJ SPECIFICATIONS ES-8155 Rev.3 Page 1/3 http://www.m-system.co.jp/ Lightning Surge Protectors for Electronics Equipment M-RESTER LIGHTNING SURGE PROTECTOR FOR POWER SUPPLY USE (fast response: 3 nsec.) Functions & Features

  • 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.
  • 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.
  • Conforms to IEC 61643-1 Class II, III U V u v PE Monitor ALM C Surge Side Protect Side mm (inch) 139 (5.47) (3.15) (3.46) MODEL: MMAJ-[1][2][3][4]

ORDERING INFORMATION

  • Code number: MMAJ-[1][2][3][4] Specify a code from below for each [1] through [4]. (e.g. MMAJ-10020MA) [1] OPERATIONAL VOLTAGE 100: 100 V / 110 V / 120 V AC 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 [4] ALARM OUTPUT A: With Y: Without GENERAL SPECIFICATIONS Construction: Wall-mounted, front terminals; terminal cover provided Surge protection type: Surge energy limiting type two-port SPD Connection Line: M4 screw terminal (torque: 1.2 N·m) Alarm output: Tension clamp Applicable wire size: 0.33 to 1.5 mm2 (6 to 7 mm2 exposed) Screw terminal: Nickel-plated steel Housing material: Steel plate t = 1.2 (black) Alarm output: SPDT relay contact trips when the thermal breaker operates.
  • Normal Output terminal A1 – C: Open Output terminal A2 – C: Close
  • Thermal breaker operating or power off Output terminal A1 – C: Close Output terminal A2 – C: Open Rated load:

250 V AC @1 A (cos ø = 1)

24 V DC @1 A (resistive load)

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 Safety function: Thermal breaker incorporated Monitor LED: Green LED; ON in normal conditions OFF in failure conditions (power off or thermal breaker operating) INSTALLATION Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: Surface Weight: 1.6 kg (3.5 lb)

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 Operational Volatge Range *1 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 Max. Load Current *2 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 -5 0 20 40 60 55 20A 30A 10A Ambient Air Temperature (°C) Load Rate (%)

MODEL: MMAJ MMAJ SPECIFICATIONS ES-8155 Rev.3 Page 3/3 http://www.m-system.co.jp/ EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) 50 (1.97) 117 (4.61)22 (0.87) 80 (3.15) 88 (3.46) 77 (3.03) 75 (2.95) 11 (0.43) 66 (2.60) U V u v PE Monitor ALM C Surge Side Protect Side 4 – M4 SLOT SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM C A1 Alarm Output Circuit ѳ ѳ PE u Protect Side G v Monitor LED Surge Side Protected Device Crossover wire *2 ѳ: Thermal breaker *1. Sections enclosed with broken line are applicable for “alarm output” option. The schematic shows the relay contact status of a thermal trip or power off. *2. Be sure to make a cross-wire. If the protected device has no earth terminal, earth only the MMAJ. *3. “PE” stands for “Protective Earth”. Besides “PE” M-RESTER has a terminal called “G”, both terminals are for grounding. ѳ ѳ U V u v U U U U Specifications are subject to change without notice.