MMP English Short Form cover - Keison Products - World's ... ·...

UK OFFICE

Thomas & Betts Limited

Furse

Wilford Road

Nottingham

NG2 1EB

United Kingdom

Switchboard +44 (0)115 964 3700

Fax +44 (0)115 986 0538

Sales tel +44 (0)115 964 3800

Sales fax +44 (0)115 986 0071

Email: [email protected]

www.furse.com

EUROPEAN HEADQUARTERS

Thomas & Betts

200 Chaussée de Waterloo

B-1640 Rhode-St-Genèse

Belgium

Tel +32 (0)2 359 8200

Fax +32 (0)2 359 8201

www.tnb-europe.com

MIDDLE EAST OFFICE

Thomas & Betts Ltd. Br.

Office 107 5EA East Wing

Dubai Airport Free Zone

PO Box 54567

Dubai

United Arab Emirates

Tel +971 (0)4 609 1635

Fax +971 (0)4 609 1636


SOUTH EAST ASIA OFFICE

Thomas & Betts Asia (Singapore) Pte Ltd

10 Ang Mo Kio Street 65

#06-07 Techpoint

Singapore 569059

Tel +65 6720 8828

Fax +65 6720 8780


The content of this Thomas & Betts catalogue has been carefully checked for accuracy at the time of print. However, Thomas & Bettsdoesn’t give any warranty of any kind, express or implied, in this respect and shall not be liable for any loss or damage that may resultfrom any use or as a consequence of any inaccuracies in or any omissions from the information which it may contain. E&OE.

Copyright Thomas & Betts 2009. Copyright in these pages is owned by Thomas & Betts except where otherwise indicated. No part ofthis publication may be reproduced, copied or transmitted in any form or by any means, without our prior written permission. Images,trade marks, brands, designs and technology are also protected by other intellectual property rights and may not be reproduced orappropriated in any manner without written permission of their respective owners. Thomas & Betts reserves the right to change andimprove any product specifications or other mentions in the catalogue at its own discretion and at any time. These conditions of use aregoverned by the laws of the Netherlands and the courts of Amsterdam shall have exclusive jurisdiction in any dispute.

MMP-UK-CAT-0709

Modular Mains ProtectorsMMP Surge Protection Range

Furse is a world leader in the design,

manufacture and supply of earthing and

lightning protection systems. Combining over

100 years’ technical expertise with an enviable

reputation for innovation, quality and service,

Furse is uniquely placed to provide a ‘Total

Solution’ to all your earthing, lightning and

transient overvoltage protection needs.

Since 1998, the Furse brand has been included in the

product portfolio of the Thomas & Betts Corporation.

Thomas & Betts was founded in New York in 1898.

The corporate headquarters now reside in Memphis,

Tennessee with the company being listed on the New

York stock exchange. Thomas & Betts has now over

100 years’ experience of successfully supplying

quality products to the market by using innovative

design and manufacturing techniques. A truly global

player having a presence in Europe, North & Central

America, Australia and the Far & Middle East.

Worldwide 13,000 employees are dedicated to

ensuring that Thomas & Betts is fast, flexible and

customer focused.

Whilst one of our core markets remains in electrical

products, Thomas & Betts also has leading brands

along with significant market share in emergency

lighting and fire detection systems, steel structures,

communications, electronic systems protection,

earthing and lightning protection. In recent years,

Thomas & Betts has developed a formidable

European safety products division. This division serves

as a key knowledge platform, focusing on continued

product innovation and delivery of competitive

solutions to our customers. Furse, being one of the

leading brands within this division, benefits from

economies of scale in product development and

production, facilitating the further efficient

development of earthing, lightning protection and

electronic surge protection systems.

Home to many well known brands and with over 100 years experience, Thomas & Betts provides a truly world-classlevel of quality, service and support. The electrical division in Europe provides the following key products:

Electrical products

An impressive range of high quality products

to fasten, install, insulate, protect and connect

electrical cables, with the confidence to achieve

a highly professional result.

Premium cable ties for the most demanding

applications, including the Ty-Rap® cable ties with a

steel locking barb and the Ty-Met™ self-locking

stainless steel ties.

A wide variety of multi-purpose heat shrink tubing

for use in insulation, protection, identification and

strain relief.

A broad range of solderless termination systems

for a variety of applications, including power

cables, shielded cables and magnet wire.

A range of liquidtight flexible conduits & fittings

for the protection of electrical cables in industrial

applications, in metallic and non-metallic versions

(including Nylon conduits & fittings).

A new range of cast resin joints for splicing and

branching low voltage cables, in applications like

street, leisure and airfield lighting, utility & home

connections.

A range of spring steel fasteners for quick, easy

and reliable fixing of services to steelwork.

Earthing & Lightningprotection solutions

With Furse, T&B is leading in the design,

manufacture and supply of earthing and

lightning protection systems.

Through its range of products, Furse can provide

complete and innovative solutions for lightning

protection, surge protection and earthing

applications.

Safety equipment forhazardous areas

DTS specializes in the provision of advanced safety

lighting solutions for hazardous and hostile areas to

a wide variety of industrial markets, including

drilling, marine, oil & gas and pharmaceutical.

Street and amenity lightingcontrol equipment

Royce Thompson is a leading manufacturer of

high quality, reliable and energy efficient photo-

electronic lighting control equipment for street and

amenity lighting.

Emergency lighting &fire detection systems

Throughout Europe T&B is well represented on

the emergency lighting and fire detection

markets with various leading brands providing

dedicated solutions for safe evacuation of

buildings and sites.

Emergi-Lite Safety Systems is the provider of

advanced emergency lighting and fire detection

systems, with field project support at the design

stage through to commissioning and maintenance.

The emergency lighting engineers, providing

innovation and the latest technology to the OEM

lighting industry.

Kaufel, formerly known as NIFE, is a strong brand

in emergency lighting products and safety power

supply systems, among whose product brands are

Sentara, Venter and Twister.

Kaufel supplies a complete range of dedicated

emergency lighting luminaries and central battery

and testing systems with product brands like Brio,

Elitt and Sesam.

VanLien provides a wide range of emergency

lighting solutions, ranging from luminaries to

central battery systems with product brands like

Optilux, Aqualux and Serenga.

Nominal Maximum Continuous Phase Installation MMP BB MMP C DescriptionVoltage (Un) Operating Voltage (Uc) Imax = 150kA Imax = 40kA

Iimp = 25kA

220 - 240VRMS 275VRMS 1 TN-C, IT MMP B275B/1 MMP C275/1 Single Phase (L-E)

1 TN-S, TN-C-S MMP B275B/2 MMP C275/2 Single Phase (L-E) + N

1 TT MMP B275B/1+1T MMP C275/1+1T Single Phase (L-N)(Gas discharge tube N-E)

3 TN-C, IT MMP B275B/3 MMP C275/3 Three Phase (L-E)

3 TN-S, TN-C-S MMP B275B/4 MMP C275/4 Three Phase (L-E) + N

3 TT MMP B275B/3+1T MMP C275/3+1T Three Phase (L-N)(Gas discharge tube N-E)

1

Contents

Contents

Introduction 2 - 3What are transient overvoltages and why you need protection

Classification of Surge Protection Devices 4Comparison between VDE and IEC location categories and which MMP protector is relevant

Wiring system overview 5An overview of the wiring system diagrams showing how to connect MMP protectors

Protectors 6 - 16Full product details of the entire range of Furse MMP modular transient overvoltage protectors

Selecting the right protector for your 230V system*

Product range overview

The Furse MMP Series protectors are suitable for use on single or three phase mains supplies and powerdistribution systems. The varistor based design eliminates the high follow current (If) associated withspark gap based surge protection. The series consists of the following products:

MMP BB Series Type 1 (Class I/Class B) protectors

For protecting against partial direct or indirect lightning strikes, Imax = 150kA 8/20µs, Iimp = 25kA 10/350µs

Redundancy, indicates if unit is partially or fully damaged

MMP C Series Type 2 (Class II/Class C) protectors

For protecting against indirect lightning strikes, Imax = 40kA 8/20µs

MMP D Series Type 3 (Class III/Class D) protectors

For protecting against indirect lightning strikes, Imax = 10kA 8/20µs

3 mode protection; L-N, L-PE and N-PE

A range of compact MMP protectors (2BA, 1B, and 2C Series) is also available.* Protectors are available for all system voltages.

Introduction | What are transient overvoltages and why do you need protection?

2

What are transient overvoltagesand why do you need protection?

CausesTransient overvoltages can be caused by:

the secondary effects of lightning strikes (eitherbetween clouds or to ground) from a kilometreor more away

the electrical switching of large inductive loads(such as motors, transformers and electricaldrives), or capacitative loads (such as powerfactor correction)

Transientovervoltagedamage to thecircuit board, left,is clear to see, butmost damage isbarely visible,as below.

Transient overvoltages are large, very brief and potentially destructive increases in voltage.

Devastating effectsAlthough they last only thousandths ormillionths of a second, transient overvoltagescan devastate modern electronic systems:

disrupting system operations, through dataloss, data and software corruption andunexplained crashes

degrading equipment components andcircuitry, shortening equipment lifetimeand increasing failures

destroying components, circuit boards andI/O cards

causing costly and unnecessary system downtime

3

What are transient overvoltages and why do you need protection? | Introduction

What are transient overvoltagesand why do you need protection?

Growing threatThe miniaturisation of electronic components and circuits makes systems ever more susceptible to damage, and thegrowing use of electronic systems further increases our vulnerability to the effects of transients.

The new BS EN/IEC 62305 “Protection against lightning”standards therefore emphasize the need to protectelectronic equipment and systems to ensure safety andbusiness continuity.

Most modern electronic systems are at risk:

computers

data communication networks

building management systems

PABX telephone exchanges

CCTV equipment

fire and burglar alarms

telecom base stations

uninterruptible power supplies (UPSs)

programmable logic controllers (PLCs)

plant sensors

telemetry and data acquisition equipment

Loss of these systems would cripple industrial,commercial and government organisations alike.

Risk assessmentAlthough most of us work in buildings with lightning conductors, these aren’t designed to, and won’t, stop transientovervoltages from damaging electronic equipment. As recognised by the latest “BS EN/IEC 62305 standards”, to preventlightning damage to electronic systems, this structural lightning protection needs to be complemented with transientovervoltage protection.

The single risk assessment of BS EN/IEC 62305 encompasses protection for both the structure and its contents -human life and electronic equipment. Interestingly, the risk of transient overvoltage damage to electronic systemsinside a building is greater than the risk of damage to the building itself.

Therefore, if, like most people, you work in a building where structural lightning protection has already been thoughtnecessary, then there is a ready made argument for transient overvoltage protection.

Protection benefitsEffective transient overvoltage protection can prevent:

fire risks and electric shock hazards

health and safety hazards caused by plant instability, after loss of control

loss of essential services – fire alarm, security systems, building management systems

lost/destroyed data or equipment damage

repair work – especially costly for remote or unmanned installations

the high cost of extended stoppages – sales lost to competitors, lost production, deterioration or spoilage ofwork in progress

Example: collection area comparison

This site consists of a main building A, auxiliary buildings B and someground level sensors C, which are linked by various underground cables.The collection area for this site for a direct lightning strike is a distanceequivalent to the height of the structures laid out in plan (shown as theshaded area). The effective collection area for transient overvoltages ismuch larger. It includes a collection area associated with the surroundingground (unshaded), plus additional areas (not shown) for incomingpower and phone lines D.

Classification of Surge Protection Devices

4

Classification of Surge Protection Devices

International and European Standards IEC 61643 and EN 61643 (replacing standards such as DIN VDE0675) determine the co-ordination of surge protectors according to their location and requirements.

Type 1 (Class I/Class B) protectorsLocated at an area where high lightning currents are expected. Typically fitted to provide equipotential bondingat the service entrance (main distribution board).

Type 2 (Class II/Class C) protectorsLocated at sub-distribution boards to control overvoltages, often residual voltages, from the upsteam Class Ilightning current arrestors.

Type 3 (Class III/Class D) protectorsLocated close to the equipment, typically at the socket outlet, they provide local protection by limiting overvoltagescaused by switching operations to safe levels.

Surge protection devices must provide a level of protection below the withstand voltage of equipment to preventequipment damage. The withstand voltage depends on the type of equipment and its sensitivity.

These withstand levels are defined in 4 overvoltage categories by IEC 60664 as shown below.

Using a co-ordinated set of protectors, as offered by the Furse MMP Series, optimum protection from damage toequipment is achieved.

For protection of highly critical and sensitive equipment, where continual operation is necessary

Type 1 Type 2 Type 3

MMP Product MMP B275B Series MMP C275 Series MMP D275 SeriesMMP CN275 Series

Classification- EN 1 2 3- IEC I II III- VDE B C D

Protection category(defined in IEC 60664)

(6kV) (4kV) (2.5kV) (1.5kV)

230/400V MDB Meter Socket Local protection

A range of compact MMP protectors (2BA, 1B, and 2C Series) is also available.

IV III II I

kWh Equipment

5

Wiring system overview

Wiring system overview

The following wiring diagrams detail how to connect the Furse MMP BB, C, CN and D Series protectors for thecommon types of mains wiring installations. For more details and to see the direct comparisons across the range,please refer to the MMP Product Selector Chart on page 1.

L

L

L

PEN

1

2

3

L

L

L

PEN

1

2

3

L

L

L

N

PE

1

2

3

L

L

L

N

PE

1

2

3

L

L

L

N

PEN

1

2

3

L

L

L

N

PE

1

2

3

L

L

L

N

1

2

3

L

L

L

N

1

2

3

TN-C NetworksFor systems with a combined Neutral/Earth supplyconductor (PEN).

TN-S NetworksFor systems with separate Neutral/Earth supplyconductors (PE & N).

TN-C-S NetworksFor systems with a combined Neutral/Earth supplyconductor that is split locally to provide a separatedNeutral conductor (PEN, PE & N).

TT NetworksFor systems where only Live and Neutral conductorsare provided from the mains supply. An Earth forthe equipment is provided locally. Surge protectionbetween Neutral/Earth can be offered by a spark gap(GDT) device to provide galvanic isolation betweenthe Neutral supply and local Earth conductors.

6

MMP BB Series – 1 phase | Type 1 (Class I/Class B) protectors

MMP BB Series – 1 phase

Wiring diagramsThe diagrams below illustratehow to wire the MMP protectoraccording to your chosenelectrical system.

Specification Type 1 (Class I/Class B) protector

Imax = 150kA 8/20µs

Iimp = 25kA 10/350µs

ApplicationUse on single or three phase mains supplies and power distribution systemsfor protection against partial direct or indirect lightning strikes.

InstallationShould be installed in a main distribution panel. The protector is suitablefor attachment to a 35mm top hat DIN rail.

Features and benefits The varistor based design eliminates the high follow current (If)

associated with spark gap based surge protection

Two red indicators show when the protector requires replacement

If only one indicator is displayed then there is still limited protectionoffered by the unit

This indication can also trigger a remote signal contact to interfacewith a building management system. Please use ‘/S’ after the part no.to order the remote indication (normally-open) contact version

L

PEN

L

250 AgLfusing

Mai

ndi

strib

utio

nbo

ard

L

N

PE

L NMai

ndi

strib

utio

nbo

ard

250 AgLfusing

L

PEN

L N

L

N

PE

Mai

ndi

strib

utio

nbo

ard

250 AgLfusing

L

N

PE

N N

L NMai

ndi

strib

utio

nbo

ard

250 AgLfusing

TN-C

TN-S

TN-C-S

TT

Compact Type 1(Class I/Class B) protectorsA range of compact Type 1 (Class I/Class B) protectorsis available from Furse.See page 16 for a brief summary of each protectortype

7


Type 1 (Class I/Class B) protectors | MMP BB Series – 1 phase

MMP B275B/1 MMP B275B/2 MMP B275B/1+1T

Electrical specificationInstallation TNC TNS/TNCS TT

Nominal voltage* 220 - 240VRMS 220 - 240VRMS 220 - 240VRMS

Maximum continuous operating voltage (Uc) 275Vac / 350Vdc 275Vac / 350Vdc 275Vac / 350Vdc

Back up fuse(If mains supply >100A)

250AgL 250AgL 250AgL

Short circuit capability 25kA / 50Hz 25kA / 50Hz 25kA / 50Hz

Signal contact ratingsSignal contact part no.

250VRMS / 0.5AMMP B275B/1/S


250VRMS / 0.5AMMP B275B/1+1T/S

Transient specificationArrestor classification1

ENIECE DIN VDE 0675

1 (1 + 2)I (I + II)

B (B + C)

1 (1 + 2)I (I + II)

B (B + C)

1 (1 + 2)I (I + II)

B (B + C)

Let-through voltage (Up)2

at In (8/20µs)at Iimp (10/350µs)at 1.2/50µs

<1.6kV<1.0kV

–

<1.6kV<1.0kV

–

<1.6kV<1.0kV<1.2kV

Nominal discharge currentIn (8/20µs) 70kA 70kA 70kA

Maximum discharge currentImax (8/20µs)Iimp (10/350µs)

150kA25kA

150kA25kA

150kA25kA / 100kA (N-E)

1 Tested to BS EN/IEC-616432 Values stated are per pole

Mechanical specificationTemperature range -40 to +80ºC

Connectionfor powerfor signal

35mm2 solid conductor, 25mm2 stranded conductor1.5mm2 conductor (/S Option)

Mounting Indoor, 35mm top hat DIN rail

Degree of protection IP20

Case material Thermoplastic, UL 94 V-0

Dimensionsto DIN 43880 90mm x 68mm x 36mm (2TE) 90mm x 68mm x 72mm (4TE) 90mm x 68mm x 72mm (4TE)

Height with remote signal contact =100mm

90 mm

36 mm

2TE

Standarddepth 68 mm

90 mm

72 mm

4TE

Enclosure dimensionsfor up to 4TE wide 170mm x 98mm x 105mm (MMP ENC4)

8

MMP BB Series – 3 phase | Type 1 (Class I/Class B) protectors



Specification Type 1 (Class I/Class B) protector

Imax = 150kA 8/20µs



InstallationShould be installed in a main distribution panel. The protector is suitablefor attachment to a 35mm top hat DIN rail.



Two red indicators show when the protector requires replacement

If only one indicator is displayed then there is still limited protectionoffered by the unit

This indication can also trigger a remote signal contact to interfacewith a building management system. Please use ‘/S’ after the part no.to order the remote indication (normally-open) contact version

L

L

L

PEN

1

2

3

L1 L2 L3

250 AgLfusing

Mai

ndi

strib

utio

nbo

ard

L

L

L

N

PE

1

2

3

L1 L2 L3 NMai

ndi

strib

utio

nbo

ard

250 AgLfusing

L

L

L

PEN

1

2

3

L1 L2 L3 N

L

L

L

N

PE

1

2

3

Mai

ndi

strib

utio

nbo

ard

250 AgLfusing

L

L

L

N

PE

1

2

3

N N N N

L1 NL3L2

250 AgLfusing

Mai

ndi

strib

utio

nbo

ard

TN-C

TN-S

TN-C-S

TT

Compact Type 1(Class I/Class B) protectorsA range of compact Type 1 (Class I/Class B)protectors is available from Furse.See page 16 for a brief summary of eachprotector type

9


Type 1 (Class I/Class B) protectors | MMP BB Series – 3 phase

MMP B275B/3 MMP B275B/4 MMP B275B/3+1T







Signal contact ratingsSignal contact part no.



250VRMS / 0.5AMMP B275B/3+1T/S


ENIECE DIN VDE 0675

1 (1 + 2)I (I + II)

B (B + C)

1 (1 + 2)I (I + II)

B (B + C)

1 (1 + 2)I (I + II)

B (B + C)


at In (8/20µs)at Iimp (10/350µs)at 1.2/50µs

<1.6kV<1.0kV

–

<1.6kV<1.0kV

–

<1.6kV<1.0kV<1.2kV



150kA25kA

150kA25kA

150kA25kA / 100kA (N-E)










90 mm

108 mm

6TE

Standarddepth

68 mm

90 mm

144 mm

8TE


10

MMP C + CN Series – 1 phase | Type 2 (Class II/Class C) protectors

MMP C + CN Series – 1 phase


Specification Type 2 (Class II/Class C) protector

Imax = 40kA 8/20µs


InstallationShould be installed in a sub-distribution panel or as close as possible to theequipment to be protected. The protector’s base is suitable for attachmentto a 35mm top hat DIN rail.



The C Series utilises replaceable protection modules

A red indicator shows when the protector requires replacement(replacement module part no. MMP C275)

This indication can also trigger a remote signal contact to interfacewith a building management system. Please use ‘/S’ after the part no.to order the remote indication (change-over) contact version

PEN

L

L

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

L

N

PE

L N

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

L N

L

PEN

L

N

PE

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

L

N

PE

N

L

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

TN-C

TN-S

TN-C-S

TT

Compact Type 2 (Class II/Class C) protectorsA range of compact Type 2 (Class II/Class C) protectors is availablefrom Furse.See page 16 for a brief summary of each protector type

11


Type 2 (Class II/ Class C) protectors | MMP C + CN Series – 1 phase

MMP C275/1 MMP C275/2 MMP C275/1+1T







Signal contact ratingsSignal contact part no.Non-replaceable SPD part no.Non-replaceable SPD signal contact part no.

250VRMS / 0.5AMMP C275/1/SMMP CN275/1MMP CN275/1/S

250VRMS / 0.5AMMP C275/2/SMMP CN275/2MMP CN275/2/S

250VRMS / 0.5AMMP C275/1+1T/SMMP CN275/1+1TMMP CN275/1+1T/S


ENIECE DIN VDE 0675

2IIC

2IIC

2IIC


at In (8/20µs)at Iimp (10/350µs), N-Eat 1.2/50µs

<0.9kV––

<0.9kV––

<0.9kV<1.3kV<1.2kV



40kA–

40kA–

40kA12.5kA (N-E)










90 mm

17 mm

90 mm

36 mm

1TE 2TE

Standarddepth 68 mm


12

MMP C + CN Series – 3 phase | Type 2 (Class II/Class C) protectors



Specification Type 2 (Class II/Class C) protector

Imax = 40kA 8/20µs


InstallationShould be installed in a sub-distribution panel or as close as possible to theequipment to be protected. The protector’s base is suitable for attachmentto a 35mm top hat DIN rail.



The C Series utilises replaceable protection modules

A red indicator shows when the protector requires replacement(replacement module part no. MMP C275)

This indication can also trigger a remote signal contact to interfacewith a building management system. Please use ‘/S’ after the part no.to order the remote indication (change-over) contact version

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

L

L

L

N

PE

1

2

3

L1 L2 L3 N

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

L1 L2 L3 N

L

L

L

PEN

1

2

3

L

L

L

N

PE

1

2

3

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

L

L

L

N

PE

1

2

3

N

L1 L2 L3

100 AgLfusing

Sub-

dist

ribut

ion

boar

d

TN-C

TN-S

TN-C-S

TT

Compact Type 2 (Class II/Class C) protectorsA range of compact Type 2 (Class II/Class C) protectors is availablefrom Furse.See page 16 for a brief summary of each protector type

13


Type 2 (Class II/Class C) protectors | MMP C + CN Series – 3 phase

MMP C275/3 MMP C275/4 MMP C275/3+1T







Signal contact ratingsSignal contact part no.Non-replaceable SPD part no.Non-replaceable SPD signal contact part no.

250VRMS / 0.5AMMP C275/3/SMMP CN275/3

MMP CN275/3/S

250VRMS / 0.5AMMP C275/4/SMMP CN275/4

MMP CN275/4/S

250VRMS / 0.5AMMP C275/3+1T/SMMP CN275/3+1T

MMP CN275/3+1T/S


ENIECE DIN VDE 0675

2IIC

2IIC

2IIC


at In (8/20µs)at Iimp (10/350µs), N-Eat 1.2/50µs

<0.9kV––

<0.9kV––

<0.9kV<1.3kV<1.2kV



40kA–

40kA–

40kA12.5kA (N-E)










* Protectors are availablefor all system voltages -contact Furse.

90 mm

54 mm

90 mm

72 mm

3TE 4TE

Standarddepth 68 mm


UK, US andJapan plug versionsalso available -contact Furse

UK, US andJapan plug versionsalso available -contact Furse

14

MMP D Series | Type 3 (Class III/Class D) protectors

MMP D Series

ApplicationUse on single phase mainssupplies. Use in conjunction withType 1 and Type 2 protectors forthe best possible level of surgeprotection.

InstallationPlug the protector directly intoa mains socket outlet then plugthe equipment to be protectedinto the integral socket in theprotector.

Features and benefits Varistor based design

A green indicator shows thepresence of mains voltage

A red indicator shows whenthe protection modulerequires replacement

Internal varistor componentsfeature thermal protectionelements

Operation of the protectedequipment is not interrupteddue to a damaged protectioncomponent

Specification Type 3 (Class III/Class D) protector

Imax = 10kA 8/20µs

Full mode protection; L-N, L-PE and N-PE

Electrical specification MMP D275/DE

Nominal voltage 220 - 240VRMS

Maximum continuous operating voltage (Uc) 275Vac / 350Vdc

Back up fuse 16AgL

Transient specificationArrester classification1

ENIECE DIN VDE 0675

3IIID

Let-through voltage (Up)L - N Isc (8/20µs)L/N - PE at Isc (8/20µs)

<1kV<1.5kV

Nominal discharge currentIn (8/20µs) 3kA

Maximum discharge currentImax (8/20µs) 10kA

1 Tested to BS EN/IEC-61643


Connection type - Standards

Geographic Location

Schuko, DIN 49 440-CE(7)IIIDIN 49 441-CEE(7)IVEurope, see footnote 1

for exclusions

Mounting Mains outlet to above specification



Dimensions 72mm x 140mm x 47mm

1 Europe excluding Great Britain, France, Belgium, Poland, Slovakia, and the Czech Republic

140 mm

72 mm

Modular Mains Protector

Depth 47 mm

15

MMP D Series

Type 3 (Class III/Class D) protectors | MMP D Series

Electrical specification */ADSL */ISDN */LAN */TN */TV

Nominal voltage 135V 130V 5Vdc 130V 20V

Maximum continuous operating voltage (Uc) 175V 160V 6Vdc 180V 20V

In-line resistance (± 10%) 0.3Ω 3 - 6Ω 0.1Ω 9 - 11Ω 0.1Ω

Bandwidth >10MHz >2MHz 100MHz >1MHz >1GHz

* Prefix MMP D275/DE to create the complete part no. e.g. MMP D275/DE/ADSL

Transient specification */ADSL */ISDN */LAN */TN */TV

Let-through voltage (Up)L - N In (8/20µs)L/N - PE at In (8/20µs)

<600V<300V

<600V<300V

35V350V

<600V<600V

<600V<600V

Nominal discharge currentL - N Isn (8/20µs)L/N - PE at Isn (8/20µs)

2.5kA5kA

2.5kA5kA

300A300A

2.5kA5kA

5kA5kA


Mechanical specification */ADSL */ISDN */LAN */TN */TV

Connection type RJ45 RJ45 RJ45 (UTP) RJ11 Euro-TV


Combined D Series protectorsIn addition to the standard D Series protector, Furse also offers the following combined protectors:

MMP D275/DE/ADSL

Mains protector with integral ADSL protection via RJ45 socket

MMP D275/DE/ISDN

Mains protector with integral ISDN protection via RJ45 socket

MMP D275/DE/LAN

Mains protector with integral LAN protection via RJ45 socket

MMP D275/DE/TN

Mains protector with integral telephone protection via RJ11 socket

MMP D275/DE/TV

Mains protector with integal EURO-TV protection via antenna signal socket

Combined protector technical specification:

16

Compact MMP protectors

Compact MMP protectors

MMP 2BA Type 1 (Class I/B) protector Imax = 80kA 8/20µs

Iimp = 12.5kA 10/350µs

Install in main distribution panel

Red indicator shows when the protection module requires replacement

Can also trigger a remote signal contact to interface with a buildingmanagement system (‘/S’ part no.)

MMP 1B Series Type 1 (Class I/B) protector Imax = 60kA 8/20µs


Install in main distribution panel

Red indicators show when the protector requires replacement(replacement module part no. MMP 1BXXX where XXX is the systemvoltage - 150, 275 or 385)


MMP 2C Series Type 2 (Class II/C) protector Imax = 40kA 8/20µs

Install in sub-distribution panel or as close as possible to the equipmentto be protected

Red indicator shows when the protector requires replacement(replacement module part no. MMP 2CXXX where XXX is the systemvoltage - 150, 275 or 385)


In addition to our standard MMP protectors, Furse offers a range of compact protectors for use onsingle or three phase mains supplies & power distribution systems to protect against partial direct orindirect lightning strikes.

These slimline, varistor based protectors are all designed to eliminate the high follow current (If) associated withspark gap based surge protection, and are suitable for attachment to a 35mm top hat DIN rail. Each protector hasfailure warning incorporated as standard, with easy relacement of modules as required.

Thank you for reading this data sheet.

For pricing or for further information, please contact us at our UK Office, using the details below.

UK OfficeKeison Products,

P.O. Box 2124, Chelmsford, Essex, CM1 3UP, England.Tel: +44 (0)330 088 0560Fax: +44 (0)1245 808399


Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

mailto:[email protected]

http://www.keison.co.uk

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