MD7RB-GF2 [MSYSTEM]

Lightning Surge Protectors for Electronics Equipment M-RESTER;


型号：	MD7RB-GF2
厂家：	M-SYSTEM
描述：	Lightning Surge Protectors for Electronics Equipment M-RESTER
文件：	总6页 (文件大小：154K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MODEL: MD7RB

Lightning Surge Protectors for

Electronics Equipment M-RESTER

[2] SAFETY APPROVAL

0: None

2: CENELEC intrinsic safety (ATEX)

LIGHTNING SURGE PROTECTOR FOR RTD USE

(ultra-slim)

[3] OPTIONS

blank: none

Functions & Features

/Q: With options (specify the specification)

(CENELEC intrinsic safety (ATEX) not available)

• 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

• Excellent protection employing multi-stage SPD circuits

• DIN rail mounting and grounding

• Shield terminal provided

/C02: Polyurethane coating

• Does not affect instrumentation signal when combined

with a 3-wire RTD, thanks to the internal high accuracy

series resistors

GENERAL SPECIFICATIONS

Construction: Slim-sized front terminal structure

Degree of protection: IP20

7 (.28)

Connection: Euro terminal block (torque 0.3 N·m)

Applicable wire size: 0.2 – 2.5 mm2, stripped length 8 mm

Grounding: DIN Rail

Housing material: Flame-resistant resin (black)

(3.74)

INSTALLATION

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.

(3.86)

mm (inch)

MODEL: MD7RB–[1][2][3]

Weight: 70 g (2.5 oz)

ORDERING INFORMATION

• Code number: MD7RB-[1][2][3]

Specify a code from below for each [1] through [3].

(e.g. MD7RB-FF0/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] SHIELD TERMINAL (line / earth)

FF: Floating / Floating

FG: Floating / Grounding

GF: Grounding / Floating

GG: Grounding / Grounding

MD7RB SPECIFICATIONS

ES-8054 Rev.10 Page 1/6

http://www.m-system.co.jp/

MODEL: MD7RB

PERFORMANCE

MODEL NO.

MD7RB-FF

MD7RB-FG

±ꢀ603

MD7RB-GF

MD7RB-GG

Max. continuous operating voltage (Uc)

Line to Line

±±3

Line to Earth

Line to SHLD

SHLD to Earth

Line to Line

±7.53

±ꢀ603

±7.53

±ꢀ603

short

±ꢀ603

short

±253

short

3oltage protection level (Up)

@4k3 (ꢀ.2 / 50 µs)

±253

Line to Earth

Line to SHLD

SHLD to Earth

Line to Line

±ꢁ003

short

±ꢀ2003

±ꢁ003

±253

±ꢁ003

Leakage current @Uc

Response time

≤ 5µA

Other sections

Line to Line

≤ 4 nsec.

≤ 20 nsec.

Other sections

Max. discharge current (Imax)

20kA (ꢁ / 20 µs), ꢀ.0kA (ꢀ0 / ±50 µs)

ꢀ00mA

Nominal current (I )

Internal series resistance

Surge protection

5.ꢀ2Ω ±0.±ꢂ, ±±0 ppm/ꢃC per line

IEC 6ꢀ64±-2ꢀ Categories Cꢀ, C2, Dꢀ

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

Ui (Vmax)

Ii (Imax)

any

50 nF

0 µH

Temp. Class

Range

Parameter

1.3W

-25 to +40°C

-25 to +60°C

-25 to +80°C

-25 to +40°C

1.2W

1.0W

MD7RB SPECIFICATIONS

ES-8054 Rev.10 Page 2/6

http://www.m-system.co.jp/

MODEL: MD7RB

DESCRIPTIONS

■ SELECTING SHIELD TERMINAL TYPE

• The surge protector has a dedicated shield terminal effective for easy shield wiring and surge protection.

• Review the shield method (grounding, non-grounding, connecting to SG, etc.) required by the protected device or system.

• There is no electrical effect to the shield by installing the surge protector, but an appropriate shield terminal type must be

selected to suit user applications.

• Refer to the flow chart below to choose.

Cable

With Shield

Without Shield

Shield to Signal

Isolated

Shield to Signal

Not Isolated

Signal to Earth

Isolated

Signal to Earth

Not Isolated

Shield

Not Grounded

Shield

Grounded

Shield

Not Grounded

Shield

Grounded

CONNECTION EXAMPLES

Sheath or

Protected Side

Metal Enclosure

Surge Side

Protected Side

Protected Device

M-RESTER

RTD

INPUT

DIN RAIL

ADAPTOR

(SHLD)

DIN RAIL

ADAPTOR

Crossover Wire

DIN RAIL

*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 ≤100Ω

*3. Cross-wire between the DIN rail 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.

*4. Shield wiring method is an example. Proceed according to the system requirements.

MD7RB SPECIFICATIONS

ES-8054 Rev.10 Page 3/6

http://www.m-system.co.jp/

MODEL: MD7RB

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

8–M3 EURO

TERMINAL

WIRE INSERTION ANGLE: approx. 20°

DIN RAIL

ADAPTOR

DIN RAIL

(35 mm wide)

[1.5 (.06)]

98 (3.86)

(.28)

MD7RB SPECIFICATIONS

ES-8054 Rev.10 Page 4/6

http://www.m-system.co.jp/

MODEL: MD7RB

SCHEMATIC CIRCUITRY

SHIELD TERMINAL

MODEL NO.

SCHEMATIC CIRCUITRY

APPLICATIONS

Surge Side

Protected Side

•Line to SHLD: •MD7RB-FFx

Floating

•Earth to SHLD:

Floating

•Standard type

Series Resistance

DISCHARGE

ELEMENT

•To protect a device having

isolation between Signal

and Earth.

•When SHLD should be

floating against the earth.

(single-end grounding)

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

(SHLD)

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

Surge Side

Protected Side

•Line to SHLD: •MD7RB-FGx

Floating

•Earth to SHLD:

Grounding

•To protect a device having

isolation between Signal

and Earth.

•When SHLD should be

grounded. (single- or both-

end grounding)

Series Resistance

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

(SHLD)

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

Surge Side

Protected Side

•Line to SHLD: •MD7RB-GFx

Grounding

•Earth to SHLD:

Floating

•To protect a device having

isolation between Signal

and Earth.

•When SHLD wire should be

connected to SG terminal

of the protected device.

(SHLD is not grounded to

the earth.)

Series Resistance

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

(SHLD)

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

Surge Side

Protected Side

•Line to SHLD: •MD7RB-GGx

Grounding

•Earth to SHLD:

Grounding

•To protect a device which

does not have a good

dielectric strength between

Signal and Earth.

Series Resistance

DISCHARGE

ELEMENT

DISCHARGE

ELEMENT

(SHLD)

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

Sections enclosed with broken line may differ depending upon the models.

MD7RB SPECIFICATIONS

ES-8054 Rev.10 Page 5/6

http://www.m-system.co.jp/

MODEL: MD7RB

Specifications are subject to change without notice.

MD7RB SPECIFICATIONS

ES-8054 Rev.10 Page 6/6

http://www.m-system.co.jp/

相关型号：