MD72WD-320 [MSYSTEM]
Lightning Surge Protectors for Electronics Equipment M-RESTER;
| 型号： | MD72WD-320 |
| 厂家： | 
M-SYSTEM |
| 描述： | Lightning Surge Protectors for Electronics Equipment M-RESTER |
| 文件： | 总3页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MODEL: MD72WD
Lightning Surge Protectors for
Electronics Equipment M-RESTER
[2] SAFETY APPROVAL
0: None
2: CENELEC intrinsic safety (ATEX)
LIGHTNING SURGE PROTECTOR FOR
[3] OPTIONS
blank: none
TWO-WIRE SIGNAL LOOP
(ultra-slim; 2 channels)
/Q: With options (specify the specification)
(CENELEC intrinsic safety (ATEX) not available)
Functions & Features
• High discharge current capacity 20 kA (8 / 20 μs), 1 kA (10
/ 350 μs)
• Ultra-thin 7-mm-wide module can be mounted
in high density
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
• 2 channels packed in one housing
• Excellent protection employing multi-stage SPD circuits
• DIN rail mounting and grounding
/C02: Polyurethane coating
GENERAL SPECIFICATIONS
Construction: Slim-sized front terminal structure
Degree of protection: IP20
Typical Applications
• Protecting a 2-wire transmitter loop
• Protecting an electronic device I/O
Connection: Euro terminal block (torque 0.3 N·m)
Applicable wire size: 0.2 – 2.5 mm2, stripped length 8 mm
Grounding: DIN Rail
7 (.28)
Housing material: Flame-resistant resin (black)
INSTALLATION
95
Operating temperature: -25 to +85°C (-13 to +185°F)
(See Safety Parameters for use in a hazardous location.)
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.
(3.74)
98
(3.86)
mm (inch)
Weight: 70 g (2.5 oz)
MODEL: MD72WD–[1][2][3]
ORDERING INFORMATION
• Code number: MD72WD-[1][2][3]
Specify a code from below for each [1] through [3].
(e.g. MD72WD-320/Q)
For the safety approval code 2, specify the product’s
destination country using Ordering Information Sheet (No.
ESU-8057).
• Specify the specification for option code /Q
(e.g. /C01)
[1] NOMINAL VOLTAGE
07: 7 V DC
16: 16 V DC
32: 32 V DC
MD72WD SPECIFICATIONS
ES-8068 Rev.6 Page 1/3
http://www.m-system.co.jp/
MODEL: MD72WD
PERFORMANCE
MODEL NO.
MD72WD-07
7ꢀ
MD72WD-16
MD72WD-32
32ꢀ
Max. continuous operating voltage (Uc)
Line to Line
Line to Earth
Line to Line
Line to Earth
Line to Line
Other sections
Line to Line
Other sections
16ꢀ
16ꢀ
45ꢀ
50ꢀ
7ꢀ
32ꢀ
ꢀoltage protection level (Up)
@6kꢀ (1.2 / 50 µs)
30ꢀ
70ꢀ
35ꢀ
75ꢀ
Leakage current @Uc
≤ 10µA
≤ 10µA
≤ 5µA
≤ 5µA
Response time
≤ 4 nsec.
≤ 4 nsec.
Max. discharge current (Imax)
Nominal current (IN)
20kA (8 / 20 µs), 1.0kA (10 / 350 µs)
250mA
Internal series resistance
Surge protection
4.7Ω 20ꢁ per line
IEC 61643-21 Categories C1, C2, D1
STANDARDS & APPROVALS
EU conformity:
ATEX Directive
Ex ia EN 60079-11
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
EN 50581
Safety approval:
CENELEC: Intrinsic safety (ATEX)
II 1G, Ex ia IIC; T4 and T5
EN 60079-0
EN 60079-11
SAFETY PARAMETERS
■ CENELEC / ATEX IS DATA
MD72WD-07 MD72WD-16 MD72WD-32
Ui (Vmax)
7V
any
16V
any
32V
any
Ii (Imax)
Ci
Li
50 nF
35 nF
15 nF
0 µH
0 µH
0 µH
Temp. Class
Range
Parameter
1.3W
-25 to +40°C
-25 to +60°C
-25 to +80°C
-25 to +40°C
Pi
T4
T5
1.2W
1.0W
1.0W
MD72WD SPECIFICATIONS
ES-8068 Rev.6 Page 2/3
http://www.m-system.co.jp/
MODEL: MD72WD
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
4 – 20mA Field-mount
Transmitter Surge Protector
Current Loop
Supply
Surge Side
Protected Side
1
+
–
+
4
DISCHARGE
ELEMENT
5
2
–
FG
(model: MD6x)
4 – 20mA Field-mount
Transmitter Surge Protector
Current Loop
Supply
+
+
6
8
3
7
DISCHARGE
ELEMENT
–
–
FG
(model: MD6x)
DIN RAIL ADAPTOR
(for grounding)
*3
*1
Crossover Wire
DIN RAIL
*2
Grounding
*1. 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.
*2. Be sure to ground the DIN rail. Recommended grounding resistance ≤100
*3. Cross-wire between the DIN rail or the terminal 7 and the metal housing of the protected device to equalize
the earth potential. Ground only the surge protector when the protected device has no ground terminal.
Specifications are subject to change without notice.
MD72WD SPECIFICATIONS
ES-8068 Rev.6 Page 3/3
http://www.m-system.co.jp/
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