MMH LIGHTNING SURGE PROTECTOR
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MMH Lightning Surge Protectors for Electronics Equipment M-RESTER LIGHTNING SURGE PROTECTOR FOR POWER SUPPLY USE (10 – 30 A; replaceable arrester module)
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Detail
·Some details are not shown. Please refer to specification sheets for all information.
MMH
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
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.
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
GROUNDING
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)
MOUNTING REQUIREMENTS unit: mm (inch)
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
M-System Co., Ltd.
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PRODUCTS LIST
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- PID Control Components
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- Lightning Surge Protectors
STATISTIC
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