MMH MSYSTEM | Alldatasheet

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MODEL: MMH http://www.m-system.co.jp/ MMH SPECIFICATIONS ES-8179 Rev.3 Page 1/4 Lightning Surge Protectors for Electronics Equipment M-RESTER LIGHTNING SURGE PROTECTOR FOR POWER SUPPLY USE (10 – 30 A; replaceable arrester module) Functions & Features

  • Designed specifically for power requirements of medium capacities (10 or 30 A)
  • Separating the arrester module when a leak current is detected at the module
  • Relay contact and front LED turn ON in case of the arrester module failure
  • The plugin type arrester module can be easily replaced Typical Applications
  • Control panels
  • Telemetering panels
  • PLC panels
  • Computer systems 80 (3.15) 250 (9.84) mm (inch) 147 (5.79) MODEL: MMH–[1][2]

ORDERING INFORMATION

  • Code number: MMH-[1][2] Specify a code from below for each [1], [2]. (e.g. MMH-130) [1] OPERATIONAL VOLTAGE 1: 100 V/110 V AC 2: 200 V/220 V AC [2] LOAD CURRENT 10: 10 A 30: 30 A

RELATED PRODUCTS

  • Lightning surge protector for standard signal line use (model: MMD)
  • Arrester module (model: MEH) GENERAL SPECIFICATIONS Construction: Wall-mounted, front terminals; terminal cover provided Connection: M4 screw terminals (torque 1.6 N·m) Screw terminal: Nickel-plated brass Housing material: Steel plate t = 1.6 (black) Monitor LED (arrester module)
  • RUN: Green LED turns on in normal conditions
  • ALARM: Red LED turns on in error Alarm contact: turns ON when the arrester module (model: MEH) is failed or extracted or when the power supply is removed. Rating: 110 V AC @ 1 A (cos ø = 1)

24 V DC @ 1 A (resistive load)

  • Maximum switching voltage: 250 V AC or 125 V DC
  • Maximum switching power: 110 VA or 24 W
  • Minimum load: 12 V DC @ 10 mA Alarm detecting current: Approx. 100 mA INSTALLATION Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: Surface Weight: 3 kg (6.61 lbs) PERFORMANCE Operational voltage range: 90 – 120 V AC (MMH-1x) 180 – 242 V AC (MMH-2x) 50/60 Hz, 10 VA max. AC discharge voltage (peak voltage) Line to line: 190 V min. (MMH-1x) 410 V min. (MMH-2x) Line to ground: 410 V min. Maximum surge voltage (peak voltage) Line to line: 350 V max. (MMH-1x) 700 V max. (MMH-2x) Line to ground: 800 V max. (Usable for those instruments which can withstand 1000 V AC between the circuit and housing) Note: The maximum voltage that could pass through M- RESTER. Protected equipment must be able to withstand this voltage for very short time period. Response time: ≤ 0.01 μsec.

MODEL: MMH http://www.m-system.co.jp/ MMH SPECIFICATIONS ES-8179 Rev.3 Page 2/4 Leakage current Line to line: ≤ 50 mA at 110 V AC (MMH-1x) ≤ 30 mA at 220 V AC (MMH-2x) including driving current for the MEH and relay Line to ground: ≤ 1 mA at 220 V AC Discharge current capacity: 10000 A (8/ 20 μsec.) Maximum load current:

10 A (MMH-x10)

30 A (MMH-x30)

Voltage drop: ≤ 1 V (50/60 Hz) ALARM CONTACT If a leak current greater than approx. 100 mA is detected from the surge absorber element inside the MEH, the relay driver circuit turns on the alarm contact output of the MMH and the ALARM LED (red). When the alarm contact is output, unplug the MEH and then plug it back in to check the ALARM LED status and confirm that the element is failed. If the ALARM LED remains ON, install a new MEH module. (Refer to the instruction manual for MMH for replacing procedure.) During NORMAL operation, it is possible for the ALARM LED to remain OFF and the ALARM contact to turn ON momentarily when experiencing lightning surges. Please continue use of the unit as this is standard operation. CONNECTION EXAMPLES 3 G U V B BREAKER AC POWER SOURCE Be sure to install a breaker. M-RESTER PROTECTED EQUIPMENT ALARM * *Turns on at the alarm condition. GROUNDING M-RESTER PROTECTED EQUIPMENT GG CROSSOVER WIRE GROUNDING (100 ohms or less) A crossover wire between M-RESTER ground and ground or metallic housing of equipment is required for protection. If the protected equipment has no ground terminal, ground the M-RESTER only.

MODEL: MMH http://www.m-system.co.jp/ MMH SPECIFICATIONS ES-8179 Rev.3 Page 3/4 EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) 10 (.39) 6 (.24) 80 (3.15) 250 (9.84) 8–M4 SCREW TERMINAL 10 (.39) 4 5 6 7 1 2 3 ALARM LED ARRESTER MODULE (model: MEH) RUN LED MOUNTING REQUIREMENTS unit: mm (inch) 230 (9.06) 40 (1.57) 4±M5 SCREWS SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM Ry ALARM OUTPUT To PROTECTED EQUIPMENT (protect side) Ry-3 Ry-1 Arrester Module (model: MEH) Ry-2 Discharge Element B BREAKER To POWER SOURCE (cable side) Be sure to install a breaker.

MODEL: MMH http://www.m-system.co.jp/ MMH SPECIFICATIONS ES-8179 Rev.3 Page 4/4 Arrester Module (model: MEH) Ry Latching Relay Driver Discharge Element Current Detector Protect Circuit INPUT TRANSFORMER Current Detector5 INPUT TRANSFORMER ALARM red RUN green Specifications are subject to change without notice.