Fortress Domestic Circuit Protection Consumer units, Enclosures, Devices,

Surge protection, Rotary isolators and accessories

Features

Industrial Switch range can be found on page 19

10

IP Rated Enclosures

Control Devices & Accessories

Consumer Units

MCBs, RCBOs & RCDs

Enclosures 5 Consumer Units: Main Switch 6 RCD Incomer 6 Dual RCD 7 Devices 8 Accessories 10 Surge Protection 12 Rotary Isolators 18 Industrial Switches 19

Includes 18th edition additions and Industrial Switches

SPDs can be found on page 17

Telephone: (01952) 238 100 Fax: (01952) 238 180

2 Technical Information

Standards

Product StandardConsumer Unit BS EN 61439-3Main Switch EN/IEC 60947-3MCB EN/IEC 60898RCBO EN/IEC 61009-1

Product StandardRCD EN/IEC 61008Enclosure EN/IEC 61439Contactor EN/IEC 60947, 61095RCBO EN/IEC 61558-1

Technical

Consumer Unit Metal (A)6 Modules 206mm8 Modules 244mm12 Modules 316mm16 Modules 388mm19 Modules 442mm22 Modules 496mm

Devices - pole pitch 18mm

Device Capacity mm2 Max Torque NmSwitch 35 2.5MCB 16 (32-50A 25mm2) 2RCD 35 2.5 (80A 3.5Nm)RCBO 16 (32-40A 25mm2) 2SPD 1.5 - 6 3Nm

Terminals

Cut Outs and Knockouts

Consumer UnitMax current rating 100A (lna)Operating Voltage 230V 50Hz (Un/Ue) Short circuit withstand 16kA rmsMetal CU base manufactured from 1.2mm steel

RCDType ACTripping Time : 1 x In≤100mS

5 x In≤40mS

RCBOType ACPoles: 1 (1P + N)

EnclosuresIP655 ModuleDims- W-176mm, H- 241mm, D- 100mmKnockouts- Dia ø20mm can be drilled to 32mm, sides - 2 off, top and bottom - 3 off, base - 1 off

MCBBreaking Capacity 6000AType B operating 3-5 x InType C operating 5-10 x In

ContactorsPoles: 2 (1 +N)NO (Normally Open)

Bell TransformerOutput voltage 4, 6, 8, 12, 16, 24VRated output 8VAConsumption 1, 15W

SPDMax Operating Voltage 275VVoltage Protection Level <1.5kVNominal discharge current: L-N 5kA N-PE 20kAResponse time <25ns

• Positive contact status indication on Switch, MCB, RCD & RCBO provided by green indicator to show contacts are open

Metal

New all metal consumer units comply with 17th Edition Wiring Regulations BS 7671 Amendment 3

Range Top & Bottom Face Sides BaseMetal 8 Module 6 x ø20mm, 1 x ø32mm 1 x ø32mm 1 x ø50 x 100mmMetal 12 Module 8 x ø20mm, 1 x ø32mm 1 x ø32mm 1 x ø50 x 100mmMetal 16 Module 9 x ø20mm, 2 x ø32mm 1 x ø32mm 2 x ø50mm, 1 x ø50 x 100mmMetal 19 Module 11 x ø20mm, 2 x ø32mm 1 x ø32mm 2 x ø50mm, 1 x ø50 x 100mmMetal 22 Module 13 x ø20mm, 2 x ø32mm 1 x ø32mm 3 x ø50 x 100mm

241m

m

100mm

Metal IP65Enclosures

All

A

Metal IP20Enclosures

115.5mm

231m

m

231m

m

115mm115.5mm

231m

m

231m

m

115mm

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3Metal Consumer Units

Base, Cover and Visor all manufactured from

steel to ensure full compliance to BS 7671.

Gloss white colour to match BG white moulded wiring

accessories. The gloss finish provides a superior finish as

well as aiding cleaning.

Easy access of cables via knockouts (20 and 32mm), in sides top and

bottom, plus additional rear entry knockouts.

Up-opening visor, enabling easier access to devices.

• Modern stylish design with a profile that matches BG wiring accessories• Flexibility for maximum circuit combinations and easy upgrades• Fast and simple installation• Consumer unit and devices tested to all relevant standards• 10 Year Guarantee

Consumer units for use in domestic household premises

18th Edition Wiring Regulations BG’s Fortress Range of metal up-opening consumer units and enclosures comply with BS 7671:2018 Amendment to the 18th Edition Wiring Regulations.

Telephone: (01952) 238 100 Fax: (01952) 238 180

Features & Benefits

10 Year Guarantee BG Circuit Protection range products are guaranteed against faulty materials and workmanship for a period of 10 years from date of delivery.

(For terms and conditions see www.bgelectrical.uk)

Side 32mm knockout can

be expanded to accept 40mm gland

if required.

10

Spirit level, to enable quick

installation, without need of additional

tools.

Backed-out and retained terminal

screws, prevents loss of screws and saves on installation time.

Fast release of DIN rail, to simplify and make first fix faster

All metal raised DIN rail, allows

space for cables to pass below.

Offset incomer, provides additional

space for main incomer cables.

Longer terminal bars, provide

more capacity and greater flexibility of number of wiring configurations.

Better cable retention due to

large screws, enabling greater

torque and cables fitted with ferrules

Tripod fixing points allows for fixing to uneven

surfaces.

Floating busbar, provides maximum

installation flexibility.

High integrity as standard, allows for non RCD protected devices to be fitted.

All screws within consumer units and enclosures are

combi style, enabling need for only one screwdriver when

installing fitting.

Stylish design - curved profile

Lockable cover option available

Trim supplied to protect cables from

sharp edged rear entry knockouts

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5

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Circuit Protection

Cat No. Description Modules Max No. WaysMain Switch Consumer Units - UnpopulatedCFUSW04 6 Module 4 Way with 100A Switch 6 4CFUSW07 9 Module 7 Way with 100A Switch 9 7CFUSW10 12 Module 10 Way with 100A Switch 12 10CFUSW14 16 Module 14 Way with 100A Switch 16 14CFUSW17 19 Module 17 Way with 100A Switch 19 17CFUSW20 22 Module 20 Way with 100A Switch 22 20

• Metal units supplied with Ø20mm and Ø32mm knockouts

• Each consumer unit supplied with spare cover blanks• Lockable covers also available,

see accessories section• 6 Module, 4 way mini CU with new up opening visor

CFUSW14

EnclosuresCFE5W Weatherproof - IP65 5CFGAR1 Garage Kit - IP65, 40A 30mA RCD, 6 + 32A MCB 5CFGAR2 Garage Kit - IP65, 100A Main Switch, 6 + 16A MCB 5CFSHOW1 Shower Kit - IP65, 63A 30mA RCD, 50A MCB 5

CFUSW10

• Enclosures supplied with DIN rail and neutral and earth terminals

• Manufactured and tested to BS EN 61439• 5 Module enclosures accept SP RCBOs• IP65 enclosures c/w Ø20mm knockouts on

all sides drillable to Ø32mm• Enclosure kits supplied complete with

devices, DIN rail, neutral cable, neutral and earth terminals, cover blanks and busbarIP65

Weatherproof20mm knockouts, can be

drilled to Ø32mmSpace to accommodate surge protection devices

Note:- Split load configurations, can be created using Main Switch Consumer Unit, RCD and cable kit CUA05

Cat No. Description ModulesMain Switch Isolator EnclosureCUEMS1 Main Switch Enclosure 2

• To go between the meter and the consumer unit • Allows the power to be isolated easily without removing main fuse • Two part cover to isolate incoming terminals • Safety screw allowing wire seal to secure bottom cover • Two individual apertures in the top and bottom of the enclosure to effectively

manage cable in and out • Populated with 100A Main Switch, CUSW100

CUEMS1

IP20 EnclosuresCFUE4M IP20, Empty Enclosure 4CFUGAR1 Garage Kit - IP20, 40A 30mA RCD, 6A + 32A MCB 5CFUGAR2 Garage Kit - IP20, 100A Main Switch, 6A + 16A MCB 5CFUSHOW1 Shower Kit - IP20, 63A 30mA RCD + 50A MCB 5CUEMS Main Switch Isolator Enclosure 100A 2

• IP20 enclosures suitable for use in indoor, dry locations• Enclosures supplied with DIN rail and neutral and

earth terminals • Manufactured and tested to BS EN 61439• Ø20mm knockouts on all sides drillable to Ø32mm• Enclosure kits supplied complete with devices, DIN

rail, neutral cable, neutral and earth terminals, cover blanks,IP65 and busbar

CFUGAR1 CFUSHOW1CFUE4M

Circuit Protection6

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Cat No. Description Modules SwitchMax No. WaysRCD1 RCD2

Max Total

Dual RCD Consumer Units - UnpopulatedCFUD6606 12 Module 6 Way with 100A Switch, 2 x 63A 30mA RCD 12 4 6 5 6CFUD6610 16 Module 10 Way with 100A Switch, 2 x 63A 30mA RCD 16 5 7 7 10CFUD6613 19 Module 13 Way with 100A Switch, 2 x 63A 30mA RCD 19 5 8 8 13CFUD6616 22 Module 16 Way with 100A Switch, 2 x 63A 30mA RCD 22 up to 9 up to 13 up to 11 16

• Dual RCD units supplied with optional High Integrity as standard• Each consumer unit supplied with spare cover blanks• Terminal and busbar design provide maximum flexibility for

combination of protected or unprotected circuits• Lockable covers also available, see accessories section

CFUD8610 CFUD8613

• Metal units supplied with Ø20mm and Ø32mm knockouts• Each consumer unit supplied with spare cover blanks• Lockable covers also available, see accessories section• 6 Module, 4 way mini CU with new up opening visor

(include photo

CFURSW807 CFURSW814

Cat No. Description ModulesMax No.

WaysRCD Incomer Consumer Units - UnpopulatedCFURSW804 6 Module 4 Way with 80A 30mA RCD 6 4CFURSW807 9 Module 7 Way with 80A 30mA RCD 9 7CFURSW810 12 Module 10 Way with 80A 30mA RCD 12 10CFURSW814 16 Module 14 Way with 80A 30mA RCD 16 14CFURSW817 19 Module 17 Way with 80A 30mA RCD 19 17CFURSW820 22 Module 20 Way with 80A 30mA RCD 22 20

• Supplied complete with MCBs fitted, see table below• Dual RCD units supplied with optional High Integrity as standard• Each consumer unit supplied with spare cover blanks• Terminal and busbar design provide maximum flexibility for combination of

protected or unprotected circuits• Lockable covers also available, see accessories section

CFUDP16610

Consumer Unit Size

Qty of MCBs

MCBs IncludedQty of Cover Blanks

6 Way 6 6Ax2, 16A, 32Ax2, 40A 210/13 Way 10 6Ax3, 16Ax2, 32Ax4, 40A 2/4

16 Way 12 6Ax3, 10A, 16Ax2, 32Ax4, 40A, 50A 4

Cat No. Description Modules SwitchMax No. WaysRCD1 RCD2

Max Total

Dual RCD Consumer Units - PopulatedCFUDP16606 12 Module 6 Way with 100A Switch, 2 x 63A 30mA RCD, 6x MCBs 12 4 6 5 6CFUDP16610 16 Module 10 Way with 100A Switch, 2 x 63A 30mA RCD, 6x MCBs 16 5 7 7 10CFUDP16613 19 Module 13 Way with 100A Switch, 2 x 63A 30mA RCD, 6x MCBs 19 5 8 8 13CFUDP16616 22 Module 16 Way with 100A Switch, 2 x 63A 30mA RCD, 6x MCBs 22 up to 9 up to 13 up to 11 16

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Circuit Protection

Cat No. Description ModulesMax No.

WaysRCBO Main Switch Consumer Units - PopulatedCFUSWP404 12 module 4 Way with 100A Switch - With 4 RCBOs Fitted 12 4CFUSWP610 12 Module 10 Way with 100A Switch - With 6 RCBOs Fitted 12 10CFUSWP810 12 Module 10 Way with 100A Switch - With 8 RCBOs Fitted 12 10CFUSWP110 12 Module 10 Way with 100A Switch - With 10 RCBOs Fitted 12 10

• Supplied complete with SP RCBOs fitted• Each consumer unit supplied with spare cover blanks• Increased height to enable easier installation of RCBOs

CFSWP110

Consumer Unit Size

Qty of RCBOs

RCBOs IncludedQty of Cover Blanks

CFUSWP404 4 6A, 16A, 32A, 40ACFUSWP610 6 6Ax2, 16A, 32Ax2, 40A 4CFUSWP810 8 6Ax3, 16A, 32Ax3, 40A 2CFUSWP110 10 6Ax3, 16Ax2, 32Ax4, 40A 1

• Fully recessed for low intrusion• 68mm depth into wall cavity• Dual RCD units supplied with optional high integrity as standard• Each consumer unit supplied with spare cover blanks• Supplied with lockable cover as standard• Optional barrel lock supplied separately• Upward opening visor• Terminals and Busbar design provide maximum flexibility for combination of

protected or unprotected circuits.• Integrated spirit level for ease of installationCFFD8610

Fully Recessed Consumer UnitsCFFD8610 16 Module 10 Way with 100A Switch, 1x 80A & 1x63A 30mA RCD 16 10CFFD8616 22 Module 16 Way with 100A Switch, 1x 80A & 1x63A 30mA RCD 22 16CFFDP18610 16 Module 10 Way Fully Recessed with 1x 80A & 63A 30mA RCD 10x MCBs 16 10

CFFDP18616 16 Module 12 Way Fully Recessed with 1x 80A & 63A 30mA RCD 12x MCBs 16 12

CFFRSW814 16 Module 14 Way fully Recessed with 80A RCD 16 14CFFRSW820 22 Module 20 Way Fully Recessed with 80A RCD 16 20CFFSW14 16 Module 14 Way fully Recessed with 100A Main Switch 16 14CFFSW20 22 module 20 Way Fully Recessed with 80A RCD 22 20

Recess KitCFA32 Recessing Kit, 16 Module 1CFA33 Recessing Kit, 19 Module 1CFA34 Recessing Kit, 22 Module 1

• Enables 16, 19 or 22 module consumer unit to be recessed into wall• Supplied with adjustable brackets and trim • Adjustable brackets enable the consumer unit to be recessed between

42mm and 62mm from the outer surface of the wall• Consumer unit not included with kit• Suitable for surface mount consumer units

CFA34

Fully Recessed Consumer Units• Specifically designed to be fully recessed into a wall or cavity up to a depth of 68mm• Each cover has capability for barrel lock installation and is fitted with cover lock blank as standard• Fast and simple installation

10

NEW

Devices

Type B Type C Description Rating ModulesInner

CartonMCBsCUMB6 CUMC6 Single Pole, Breaking Capacity 6kA 6A 1 12CUMB10 CUMC10 Single Pole, Breaking Capacity 6kA 10A 1 12CUMB16 CUMC16 Single Pole, Breaking Capacity 6kA 16A 1 12CUMB20 CUMC20 Single Pole, Breaking Capacity 6kA 20A 1 12CUMB32 CUMC32 Single Pole, Breaking Capacity 6kA 32A 1 12CUMB40 CUMC40 Single Pole, Breaking Capacity 6kA 40A 1 12CUMB50 CUMC50 Single Pole, Breaking Capacity 6kA 50A 1 12

• Positive contact status indication• Available in type B or C• Device capable of being locked in ‘ON’ or ‘OFF’ position

using a device lock

CUMB32

RCBOsCUCRB6 CUCRC6 Single Pole, Breaking Capacity 6kA 6A 30mA 1 5CUCRB10 CUCRC10 Single Pole, Breaking Capacity 6kA 10A 30mA 1 5CUCRB16 CUCRC16 Single Pole, Breaking Capacity 6kA 16A 30mA 1 5CUCRB20 CUCRC20 Single Pole, Breaking Capacity 6kA 20A 30mA 1 5CUCRB32 CUCRC32 Single Pole, Breaking Capacity 6kA 32A 30mA 1 5CUCRB40 CUCRC40 Single Pole, Breaking Capacity 6kA 40A 30mA 1 5

• Positive contact status indication• Available in type B or C• Device capable of being locked in ‘ON’ or ‘OFF’ position using a

device lock

CUCRB32

Cat No. Description Rating ModulesInner

CartonMain Switch (Isolator)CUSW100 Double Pole 100A Main Switch 100A 2 10

• Positive contact status indication• Device capable of being locked in ‘ON’ or ‘OFF’ position

using a device lock

CUSW100

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Devices

Cat No. Description Rating ModulesInner

CartonRCDsCUR4030 Double Pole, Type AC 40A 30mA 2 5CUR6330 Double Pole, Type AC 63A 30mA 2 5CUR8030 Double Pole, Type AC 80A 30mA 2 5CUR80100 Double Pole, Type AC 80A 100mA 2 5CUR80100TD Double Pole, Type AC, Time Delayed 80A 100mA 2 5

• Positive contact status indication• Device capable of being locked in ‘ON’ or ‘OFF’ position

using a device lock

CUR8030

Control DevicesCUC20 Contactor 20A double pole 1 5CUC40 Contactor 40A double pole 2 5CUB1 Bell Transformer 2 5CUTS1 Time Delay Switch, 1 - 20 mins 1 5CUTS5 Timer Analogue 24 Hr 3 5CUTS10 Timer Digital 1 Channel 2 5CUTS11 Timer Digital 2 Channels 2 5

CUC20 CUTS10CUTS5CUB1 CUTS11

Wide range of additional control devices for installation inside the consumer unit

Contactors are Ideal for controlling large lighting loads, heating or ventilation systems

The bell transformer is for use with mains powered door chimes which do not have integrated transformers.

Step down transformer to 8V - 24V The timers control circuits to activate or deactivate at certain

times the user sets. The number of channels indicates the number of separate

circuits which can be controlled

AccessoriesCUA01 Consumer Unit Cover Blanks (pack of 10, 5 x pairs) 10CUA02 Busbar 21 Way 10CUA03 Busbar Shield 21 way 10CUA04 MCB Blank, 1 Module, DIN rail mounted 10CUA05 Cable Kit includes neutral and live cables, terminal bar, fixing clip and spare labels (may be used to convert

mains switch to split load consumer unit)5

CUA11 Spare label sheets (Pack of 5) 10CUA15 Cover lock (to fit insulated tall 12 module consumer units only) 1CFA16 Metal cover lock blank for use with the metal lockable covers after the barrel lock is removed 1

• Cable kit enables consumer unit upgrade from main switch to split load or split load to dual RCD, or dual RCD to triple RCD (22 module only)

CUA01 CUA05CUA02 CUA11CUA03 CUA04

Accessories

Cat No. DescriptionInner

CartonLockable CoverCFUA20-01 9 Module Lockable Cover complete with fitted visor and lock 1CFUA21-01 12 Module Lockable Cover complete with fitted visor and lock 1CFUA22-01 16 Module Lockable Cover complete with fitted visor and lock 1CFUA23-01 19 Module Lockable Cover complete with fitted visor and lock 1CFUA24-01 22 Module Lockable Cover complete with fitted visor and lock 1

• Lockable covers are pre-assembled• Ideal during first installation to ensure power isolation, and protect

installer

CFUA22

10

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• Both Plastic and Brass Glands acceptable, due to no set regulation on cable entry

• Tails Glands allow 2 x tails and 1 x earth cable to enter one single entry, whilst being individually sealed

• No Eddy currents• Earth cable entry can be easily blanked• All Glands/Grommets satisfy IP4X

(minimum requirement as per NICEIC Guidelines for all cable entry and exit on horizontal planes)

• Cable Retention, negates requirement for additional tails clamp

• All products are self-extinguishing• Glands are vibration resistant• Halogen Free Material• Individually bagged

CPRGBF25CPRGPF25 CPRGMGR

Accessories

FLAT DOUBLE FLAT TAILS 1 TAILS 2

Insert Options

Cat No. Description Inserts Material Cable AcceptanceInner

CartonCable GlandsCPRGPF20S Grey Plastic Gland Kit for 1-1.5mm flat cable c/w

Flat Cable Insert, LocknutPolyamide 1-1.5mm² Flat Cable 40

CPRGPF20 Grey Plastic Gland Kit for 2.5-4mm flat cable c/w Flat Cable Insert, Locknut

Polyamide 2.5-4mm² Flat Cable 40

CPRGPF252 Grey Plastic Gland Kit for 2x2.5mm flat cable c/w Flat Cable Insert, Locknut, Adaptor

Polyamide 2x2.5mm² Flat Cable 40

CPRGPF25 Grey Plastic Gland Kit for 6mm flat cable c/w Flat Cable Insert, Locknut, Adaptor

Polyamide 6mm² Flat Cable 40

CPRGPF32 Grey Plastic Gland Kit for 10-16mm flat cable c/w Flat Cable Insert, Locknut

Polyamide 10-16mm² Flat Cable 40

CPRGPT32 Grey Plastic Tails Kit. c/w Multiple Inserts, Locknut, Blanking insert

Polyamide 2x16mm² + 1x16mm² 40

CPRGPT40 Grey Plastic Tails Kit. c/w, Multiple Inserts, Locknut, Blanking insert

Polyamide 2x25mm² + 1x16mm² 40

CPRGPT40A Grey Plastic Tails Kit. c/w Adaptor, Multiple Inserts, Locknut, Blanking insert

Polyamide 2x25mm² + 1x 16mm² + Adaptor

40

CPRGBF20S Brass Gland Kit for 1-1.5mm flat cable c/w Flat Cable Insert, Locknut

Nickel Plated Brass

1-1.5mm² Flat Cable 40

CPRGBF20 Brass Gland Kit for 2.5-4mm flat cable c/w Flat Cable Insert, Locknut

Nickel Plated Brass

2.5-4mm² Flat Cable 40

CPRGBF252 Brass Gland Kit for 2x2.5mm flat cable c/w Flat Cable Insert, Locknut, Reducer

Nickel Plated Brass

2x2.5mm² Flat Cable 40

CPRGBF25 Brass Gland Kit for 6mm flat cable c/w Flat Cable Insert, Locknut, Reducer

Nickel Plated Brass

6mm² Flat Cable 30

CPRGBF32 Brass Gland Kit for 10-16mm flat cable c/w Flat Cable Insert, Locknut

Nickel Plated Brass

10-16mm² Flat Cable 30

CPRGBT32 Brass Tails Kit. c/w Multiple Inserts, Locknut, Blanking insert

Nickel Plated Brass

2x16mm² + 1x16mm² 40

CPRGBT40 Brass Tails Kit. c/w, Multiple Inserts, Locknut, Blanking insert

Nickel Plated Brass

2x25mm² + 1x16mm² 40

CPRGBT40A Brass Tails Kit. c/w Adaptor, Multiple Inserts, Locknut, Blanking insert

Nickel Plated Brass

2x25mm² + 1x 16mm² + Adaptor

40

CPRGMGR 10x M20, 3x M32 Semi Blind Grommets - TPE, Flame Retardant

1 - 25mm² 10

FLAT

FLAT

FLAT

DOUBLE FLAT

FLAT

TAILS 1

TAILS 2

TAILS 2

FLAT

FLAT

FLAT

DOUBLE FLAT

FLAT

TAILS 1

TAILS 2

TAILS 2

FLAT TAILS

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RCD – Residual Current Device

Additional requirements for circuits with luminaries within domestic (household) premises, additional protection by an RCD with a rated residual operating current not exceeding 30mA shall be provided for AC final circuits supplying luminaries.These changes do not affect us as we currently have items in place which cover these requirements.

SPD - Surge Protection Device

SPD have now been introduced as a mandatory requirement into the 18th edition wiring regulations for domestic installations.

To determine if protection against transient overvoltage is required, a risk assessment can be carried out. If the risk assessment is not performed, the electrical installation shall be provided with protection against transient overvoltage. This excludes single dwelling units.

The 18th edition wiring regulations (BS7671) sets out requirements for electrical installations in the UK, including requirements for protection of persons, livestock & property against the risk from fires that may be generated & propagated in the electrical installations.

“

“ A new Regulation 421.1.7 has been introduced recommending the installation of arc fault detection devices (AFDDs complying to BS EN 62606) to mitigate the risk of fire in AC final circuits of a fixed installation due to the effects of arc fault currents. These are only recommended and are not to be considered for all areas.

AFDD - Arc Fault Detection Device

Key Changes

18th Edition

13

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An AFDD utilises electronic technology to analyse the signature (waveform) of an arc to differentiate between normal arcing and arcing faults between L-L, L-N & L-E. Upon detection of an arcing fault, the AFDD disconnects the final circuit from the supply

In electrical circuits there are numerous cases of normal arcs appearing that correspond to a typical operation such as switches, contactors, portable tools and vacuum cleaner motors

AFDDs are designed and tested to not respond to arcing under normal opera-tion of equipment, but to respond to arc faults while the equipment is in operation

Earth tracking currents

Overloading Short-circuits

Arcing Overvoltages

Protection Against Thermal Effects

Transient Overvoltage Protection

Overvoltage control Limiting the damage caused by an increase of lightning strikes.

Protection against transient overvoltages is now required in specified situations when such overvoltages could result in:

• Sever injury to loss of lie • Interrupted public services it industrial and commercial activity • Damage to cultural heritage • A large number of individuals in same location being affected

Electrical installations should minimise the risk of ignition of flammable materials from electric arc or high temperature

AFDDs recommended install areas cover:

• Premises with sleeping accommodation• Locations with risk of fire due the nature processed or stored materials

(barns, wood-working shops, stores of combustible materials)• Fire propagating structures• Locations with endangering of irreplaceable goods

Most of the areas listed excluding sleeping accommodations and some propitiating buildings will be mostly three phase locations due to the type of machinery or the use of the building. If used should be installed at the origin of the final circuit in AC single phase circuits not exceeding 230v. Area’s that have been exempt for the use of this type of device are hospitals.

18th Edition

14

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Benefits of using a surge protection device (SPD)

• Prevents loss of human life

• Prevents damage from ( LEMP) Lightning electromagnetic pulse

• Prevent electric shock hazards due to over voltage (industrial capacitor banks contractor coils or other industrial switching)

• Preventing fire

• Protect sensitive electronic equipment (TV’s Computers etc.)

• Protects the internal/external wiring infrastructure of the building

• Prevents unnecessary disruption

What’s the worst that can happen?

Examples of damage due to LEMP on unprotected installations.

Surge Protection Devices

SPD - Surge Protection DeviceType 2 SPDRecommended for all low voltage electrical installations. Installed in each electrical switchboard, it prevents the spread of over voltage’s in the electrical installations and protects the loads.

Type 2 SPD is characterized

by an 8/20 µs current wave.

15

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BASIC SPD OPERATING DIAGRAM

Principle of Surge Protection OperationSPDs are designed to limit transient over voltage’s due to lightning or switching and divert the associated surge currents to earth, so as to limit these over voltage’s to a level that is unlikely to damage the electrical installation or equipment.

A Surge Protection Device (SPDs)A component of the electrical installation protection system. This device is connected to the power supply in parallel with the loads (circuits) that it is intended to protect. It can also be used at all levels of the power supply network. This is most commonly used and most practical type of over voltage protection.

18th Edition Clause Number 443.4 Over voltage ControlProtection against transient over voltage’s shall we be provided where the consequence caused by over voltage

(a) results in serious injury to, or loss of, human life, or;(b) results in interruption of public services/or damage to and cultural heritage, or(c) results in interruption of commercial or industrial activity, or;(d) affects a large number of co-located individuals.

What you need to know...

So in basic terms an SPD device will need to be fitted if the installation falls under clause 443.4 or if not sure, the risk assessment (clause 443.5) should

be undertaken to determine the requirement for the installation.

If the risk assessment is not performed, the electrical installation shall be provided with protection against transient over voltage.

Except for single dwelling unitswhere the total value of the installation and equipment therein, does not justify such protection.

Surge Protection Devices

Surge Protection Devices16

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Has a risk assessment been done?

Does the risk assessment state a device is required?

Copy of risk assessment should be kept with customer/installer

Does the cost of the property or the value of the installation and products exceed the cost

of the device?

BS7671 Section 443Protection against transient over voltage of atmospheric origin or due to switching

(Surge Protection)

Document stating the reason the SPD was not required for the installation/consumer unit

DomesticType 2 required

Is the insulation domestic/light commercial?

Yes

No

Yes

Yes

No

No

Surge Protection Devices

Part No. Description Product Detail

CFSPDE01 SPD Enclosure Kit c/w SPD Type 1/2 (CUSPDT21), TT, TN and TNCS, 100A Main Switch

Type 2 - Pre-assembled Consumer Unit and Type 2 Retrofit Surge and Lightning Protection Enclosure

• Stand alone enclosure to be fitted to existing consumer unit/enclosures, to provide surge protection, supplied with 100A main switch, 32A MCB and SPD device. Enclosure is IP65

The Range

Type 3 - Surge Protection Extension Leads

Note :- Information on this range can be found on page 172 of the BG electrical catalogue.

The BG range has been selected to cater for the majority of domestic/commercial applications with the minimal of range, in order to keep selection simple and minimise stock holding for potential stockists.

Part No. Description

CUSPDT21 Type 2, 1 Module, TNCS

Type 2 - Surge Protected Device

�CUSPDT21

�CFSPDE01

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Rotary Isolators

• Insulated • Red/Yellow padlock-able handle• Earth terminals included• Easy cable access via M20 knock-outs (top and bottom)

• Captive retained cover screws• Switch interlocked with lid to prevent opening in ON position• Manufactured and tested BS EN 60947-3

CPRSD416* CPRSD440 CPRSD463

*Two pole rotary isolators, only available for export market

2 Pole 4 Pole DescriptionInner

CartonRotary Isolators

- CPRSD416 16A Rotary Isolator 4P a.c. IP65 1CPRSD220 CPRSD420 20A Rotary Isolator 4P a.c. IP65 1

- CPRSD425 25A Rotary Isolator 4P a.c. IP65 1CPRSD232 CPRSD432 32A Rotary Isolator 4P a.c. IP65 1CPRSD240 CPRSD440 40A Rotary Isolator 4P a.c. IP65 1CPRSD263 CPRSD463 63A Rotary Isolator 4P a.c. IP65 1

- CPRSD4100 100A Rotary Isolator 4P a.c. IP65 1

16A/20A/25A 100A32A/40A/63A

125

100

175

114

240

160

D: 120D: 100D: 85

18

Telephone: (01952) 238 100 Fax: (01952) 238 180

19

Email: sales@bgelectrical.co.uk www.bgelectrical.uk

Notes:

UK:HEAD OFFICE:Email: info@luceco.comLuceco plc, Caparo House103 Baker Street, LondonEngland, W1U 6LN

DISTRIBUTION CENTRE:Tel: +44 (0) 1952 238 100Email: uk_sales@luceco.comLuceco plc Luceco Distribution CentreStafford Park 1, Telford Shropshire, England, TF3 3BD

GERMANY:Tel: +49 40 89066 878 - 0Email: eu_sales@luceco.comNexus Industries GmbH Holstenplatz 20b 22765 Hamburg, Germany

FRANCE:Tel: +33 (0)1 61 10 10 35Email: fr_sales@luceco.comLuceco SAS France & Belux 3 Rue de Courtalin Magny Le Hongre 77700 Paris, France

ITALY:Tel: +39 0434 1696795Email: it_sales@luceco.comNexus Italia, Via Amman 1033170 Pordenone, Italy

SPAIN:Tel: +34 93 829 55 75Email: es_sales@luceco.comNexus Industries LTD C/ Bobinadora 1-508302 Mataró Barcelona (SPAIN)

MIDDLE EAST:Tel: +971 4 609 1867Email: mea_sales@luceco.comLuceco Middle East FZCOBldg. 5EB, Office 342PO Box 371128, DAFZADubai, UAE

ASIA PACIFIC: JIAXING:Tel: +86 (0) 573 8357 0200Email: asia_sales@luceco.comNo 1438, Jiachuang Road Xiuzhou Industrial Park, Jiaxing Zhejiang, China, P.C. 314031

HONG KONG:Tel: +852 3520 2622Email: hk_sales@luceco.comLuceco (Hong Kong) LtdUnit D, 15th Floor MG Tower133 Hoi Bun RoadKwun Tong, KowloonHong Kong

UNITED STATES:Tel: +1 281 978 2509Email: us_sales@luceco.comLuceco Inc, 11050 W Little York RoadBuilding C-2, Houston, TX 77041, USA

MEXICO & LATIN AMERICA:Tel: +52 (81) 5000 9437Email: ventas@luceco.comLuceco México S. de R.L. de C.V.Batallón de San Patricio #109 Sur, Col. Valle Oriente, San Pedro Garza García N.L. México CP 66260 (Torre Avalanz, Piso #20, Oficina 2009)

AFRICA:Tel: +27 11 432 6779Email: africa_sales@luceco.comUnit 2, Cedarwood Office ParkCnr. Western Service and Mount Lebanon Road, Woodmead South Africa, 2144

TECHNICAL SUPPORT:Tel: 03300 249 279 Email: technical.support@masterplug.comLines open Monday to Friday 8.30am to 5pm, with answer phone service outside these hours.

www.bgelectrical.uk

a Luceco plc group company