MD7LWA-FF [MSYSTEM]
Lightning Surge Protectors for Electronics Equipment M-RESTER;
| 型号： | MD7LWA-FF |
| 厂家： | 
M-SYSTEM |
| 描述： | Lightning Surge Protectors for Electronics Equipment M-RESTER |
| 文件： | 总3页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MODEL: MD7LWA
Lightning Surge Protectors for
Electronics Equipment M-RESTER
APPLICABLE NETWORK
LonWorks FTT-10A network
This unit is not applicable to LonWorks Link Power network.
LIGHTNING SURGE PROTECTOR FOR
GENERAL SPECIFICATIONS
Construction: Slim-sized front terminal structure
Degree of protection: IP20
LonWorks
(ultra-slim, FTT-10A)
Functions & Features
Connection: Euro terminal block (torque 0.3 N·m)
• High discharge current capacity 20 kA (8 / 20 μs), 1 kA (10
/ 350 μs)
Applicable wire size: 0.2 – 2.5 mm2, stripped length 8 mm
Grounding: DIN Rail
• Ultra-thin 7-mm-wide module can be mounted in high
density
Housing material: Flame-resistant resin (black)
• Excellent protection employing multi-stage SPD circuits
• DIN rail mounting and grounding
• Shield terminal provided
INSTALLATION
Operating temperature: -25 to +85°C (-13 to +185°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: DIN Rail (TH35-7.5, 1-mm-thick)
Oxide film on the surface of an aluminium DIN rail may
lower the electric conductivity between this module and the
ground. Use a steel or copper rail.
7 [.28]
Weight: 70 g (2.5 oz)
95
[3.74]
PERFORMANCE
LINE TO
LINE
LINE TO
EARTH
SHLD TO
EARTH
98
[3.86]
Max. continuous
operating voltage (Uc)
±±.5V
±ꢀ0V
≤ 5µA
±±00V
±ꢀ30V
≤ 20µA
±±60V*±
±ꢁ00V*±
≤ 5µA*±
mm [inch]
Voltage protection level
(Up) @4kV (±.2 / 50 µs)
Leakage current @Uc
Response time
MODEL: MD7LWA–[1][2]
≤ 4 nsec. ≤ 20 nsec. ≤ 20 nsec.*±
Approx. capacitance
@±0 kHz
±00 pF
±00 pF
5 pF*±
ORDERING INFORMATION
• Code number: MD7LWA-[1][2]
Specify a code from below for each of [1] and [2].
(e.g. MD7LWA-FF/Q)
Max. discharge current
(Imax)
20kA (ꢁ / 20 µs)
±.0kA (±0 / ꢀ50 µs)
Nominal current (IN)
Internal series resistance
Insertion loss
±00mA
≤ ꢀ.ꢀΩ including return
• Specify the specification for option code /Q
(e.g. /C01)
-0.5 dB max. @DC...5 MHz, Z0 = ±00Ω
IEC 6±64ꢀ-2± Categories C±, C2, D±
Surge protection
*±. Values for the $oating type (FF). Shortcircuited for the ground-
ing type (FG).
[1] SHIELD TERMINAL (to earth)
FF: Floating
FG: Grounding
STANDARDS & APPROVALS
EU conformity:
[2] OPTIONS
EMC Directive
blank: none
EMI EN 61000-6-4
/Q: Options other than the above (specify the specification)
EMS EN 61000-6-2
RoHS Directive
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
MD7LWA SPECIFICATIONS
ES-8060 Rev.9 Page 1/3
https://www.m-system.co.jp/
MODEL: MD7LWA
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
8–M3 EURO
TERMINAL
WIRE INSERTION ANGLE: approx. 20°
8
6
5
4
8
DIN RAIL
ADAPTOR
6
5
DIN RAIL
4
(35 mm wide)
1
2
3
7
1
2
3
7
(1.5 [.06])
98 [3.86]
7
[.28]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Surge Side
Protected Side
M-RESTER
Protected Device
*1
Series Resistance
4
1
+
NET
A, B
–
DISCHARGE
ELEMENT
5
6
8
2
3
7
*3
SHLD
(SHLD)
DISCHARGE
ELEMENT
*2
DIN RAIL ADAPTOR
(for grounding)
FG
*4
*6
Crossover Wire
DIN RAIL
*5
Grounding
*1. Be sure to use twisted-pair cables.
*2. Choose the M-RESTER – FG when the shield wire is to be grounded.
*3. When the twisted-pair cable is with a shield, connect it to the surge protector’s terminal 8, and follow instructions given by the protected
device for the terminal 7. When SHLD is not isolated from NET A / B, DO NOT connect the terminal 7 to SHLD.
*4. Oxide film on the surface of an aluminium rail may lower the electric conductivity between this module and the ground. Use a steel or copper rail.
*5. Be sure to ground the DIN rail. Recommended grounding resistance max. 100 ohms.
*6. Cross-wire from the DIN rail to the metal housing of the protected device to equalize the ground potential.
Ground only the surge protector when the protected device has no grounding terminal.
MD7LWA SPECIFICATIONS
ES-8060 Rev.9 Page 2/3
https://www.m-system.co.jp/
MODEL: MD7LWA
P ꢃepꢁ/ꢁC ꢂiꢃet
M-RESTER
SurgeꢁSide
ProtectedꢁSide
NetꢄorꢅꢁC ꢂpe
NetꢄorꢅꢁC ꢂpe
CrossoverꢁWire
G
FG
FG
Protected
Devices
(Nodes)
Grouꢃdiꢃg
P ꢃepꢁ/ꢁC ꢂiꢃet
M-RESTER
SurgeꢁSide
ProtectedꢁSide
NetꢄorꢅꢁC ꢂpe
CrossoverꢁWire
G
FG
FG
Protected
Devices
(Nodes)
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Specifications are subject to change without notice.
MD7LWA SPECIFICATIONS
ES-8060 Rev.9 Page 3/3
https://www.m-system.co.jp/
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