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1 Pole -  T1PD1/12.5/75R

Type 1 - Class I / Type 2 - Class II - Single Phase - 1 Pole - 12.5kA - 75VAC

The T1PD1/12.5/75R is a lightning surge arrester type 1 or type 2 according to EN 61643-11.

The main use of T1PD1/12.5/75R arrester is in structures of LPL III – IV according to EN 62305, e.g. residential houses with cable supply and subdistribution boards of big industrial structures and elimination of switching surges that originate in power supply systems.

1 Pole - T1PD1/25/48DCR

Type 1 - Class I / Type 2 - Class II - Single Phase - 25kA - 48VDC

The T1PD1/25/48DCR is a type 1 - class I or type 2 - class II 48V DC surge protector designed to protect equipment connected to DC power supplies from lightning surges.

1 Pole - T1PDM1/7/75 & 75R

Type 1 - Class I / Type 2 - Class II - Single Phase - 1 Pole - 7kA - 75VAC

These SPDs are designed for use in the LPZ Concept at the boundaries of LPZ 0 – 1. For use in residential houses with cable supply and subdistribution boards of big industrial structures. These arresters are mainly intended for use in TNC systems.

1 Pole - T1SP1/12.5/320R

Type 1 - Class I - Single Phase - 1 Pole - 12.5kA - 320VAC 

For use in the LPZ Concept at the boundaries of LPZ 0 – 1

Designed mainly for use on the power supply lines, which operate a TN-C, TN-S and TT earthing system.

1 Pole - T1SP1/12.5/500 & 500R

Type 1 - Class I / Type 2 - Class II - Single Phase - 1 Pole - 12.5kA - 500VAC

These devices are single-pole lightning and surge arresters Type 1+2 according to IEC EN 61643-11.

1 Pole - T1SP1/50/255G

Type 1 - Class I - Single Phase - 50kA - 255VAC

For use in the LPZ Concept at the boundaries of LPZ 0 – 1

Designed mainly for use in systems that use TN-C earthing. For TNS and TT systems it is necessary to combine these arresters with an additional module designed for Neutral – Earth use.

1 Pole - T1SP1/50/440G

Type 1 - Class I - Single Phase - 50kA - 440VAC

For use in the LPZ Concept at the boundaries of LPZ 0 – 1

Designed mainly for use in systems that use TN-C earthing. For TNS and TT systems it is necessary to combine these arresters with an additional module designed for Neutral – Earth use.

1000Vdc - T1PV2/12.5/1000 & 1000R

Type 1 - Class I / Type 2 - Class II - 12.5kA - 1000VDC

The T1PV2/12.5/1000 & T1PV2/12.5/1000R (Remote Version) are lightning arrester type 1+2 according to EN 61643-11. It is designed for protection of positive and negative busbars of photovoltaic systems against the surge effects.

2 Pole - T1PDM1/12.5/12.5/230 & 230R

Type 1 - Class I / Type 2 - Class II - Single Phase - 2 Pole - 12.5kA -12.5kA - 275VAC

Recommended for use in the Lightning protection zones concept at the boundaries of LPZ 0-1. These lightning arresters are for use mainly in the power supply lines, which are operated as TN-S system.

2 Pole - T1PDM1/12.5/25/230 & 230R

Type 1 - Class I / Type 2 - Class II - Single Phase - 2 Pole - 12.5kA - 25kA - 230VAC

The T1PDM1/12.5/25/230 and the T1PDM1/12.5/25/230R are two-pole, Type 1 and 2 MOV + GDT lightning arrester according to EN 61643-11 and IEC 61643-11. The use of these arresters is mainly in the power supply lines, which are operated as TN-S and TT systems.

2 Pole - T1SP1/12.5/25/230R

Type 1 - Class I / Type 2 - Class II - Single Phase - 12.5kA - 275VAC

A single-phase MOV+GDT lightning and surge arrester. Designed for TNS, TNC-S and TT earthing systems. For use in industrial & administration buildings, schools, supermarkets and cathedrals.

2 Pole - T1SP1/25/50/230R

Type 1 - Class I / Type 2 - Class II - Single Phase - 25 kA - 275VAC

A 25kA single-phase MOV+GDT lightning and surge arrester. Designed for TNS, TNC-S and TT earthing systems. For use in hospitals, banks, mobile operator stations, water-works, power plants, airport buildings for air traffic control

3 Pole - T1PDM3/12.5/230 & 230R

Type 1 - Class I / Type 2 - Class II - Three Phase - 12.5kA - 230VAC

The T1PDM3/12.5/230 and T1PDM3/12.5/230R (Remote Version) are lightning arresters type 1 or type 2 according to EN 61643-11.

4 Pole - T1PDM3/12.5/12.5/230 & 230R

Type 1 - Class I / Type 2 - Class II - Three Phase - 12.5kA -12.5kA - 275VAC / 350VDC

The T1PDM3/12.5/12.5/230 and the T1PDM3/12.5/12.5/230R (Remote Version) are lightning arresters type 1 or type 2 according to EN 61643-11. 

These devices are mainly intended for use in TNS, TNC-S systems.

4 Pole - T1PDM3/12.5/50/230 & 230R

Type 1 - Class I / Type 2 - Class II - Three Phase - 12.5kA -50kA - 275VAC

The T1PDM3/12.5/50/230 and the T1PDM3/12.5/50/230R are Type 1 and 2 lightning arrester according to EN 61643-11. 

The devices are mainly intended for use in TNS, TNC-S or TT systems.

4 Pole - T1PDM3/7/25/320 & 320R

Type 1 - Class I / Type 2 - Class II - Three Phase - Four Pole - 7kA - 25kA - 320VAC / 350VDC

The T1PDM3/7/25/320 and T1PDM3/7/25/320R (Remote Version) are four-pole, metal oxide varistor surge arrester combined with gas discharge tube, Type 1/2 according to EN 61643-11 and IEC 61643-11.

4 Pole - T1SP3/12.5/50/230R

Type 1 - Class I / Type 2 - Class II - Three Phase - L/N 12.5 kA - N/PE 50kA - 275VAC  

A 12.5kA three-phase MOV+GDT lightning and surge arrester. Designed for TNS, TNC-S and TT earthing systems. For use in industrial & administration buildings, schools, supermarkets & cathedrals.

4 Pole - T1SP3/25/100/230R

Type 1 - Class I / Type 2 - Class II - Three Phase - L/N 25kA - N/PE 100kA - 275VAC

A 25kA three-phase MOV+GDT lightning and surge arrester. Dsigned for TNS, TNC-S and TT earthing systems. For use in hospitals, banks, mobile operator stations, water-works, power plants, airport buildings for air traffic control.

Like this product? Click here to see our newer version T1ZH3/25/100/230R

4 Pole - T1SP3/IT/12.5/400R

Type 1 - Class I Type 2 - Class II - 12.5kA - 3 x 480V AC

The T1SP3/IT/12.5/400R lightning surge arrester type 1 + 2 designed for the IT network 3 x AC 400 V without neutral conductor. The recommended use for the T1SP3/IT/12.5/400R is in heavy industry, rolling mills, machinery, etc. 

4 Pole - T1SP3/IT/12.5/500R

Type 1 - Class I Type 2 - Class II - 12.5kA - 3 x 500V AC

The T1SP3/IT/12.5/500R lightning surge arrester type 1 + 2 designed for the IT network 3 x AC 500 V without neutral conductor. The recommended use for the T1SP3/IT/12.5/500R is in heavy industry, rolling mills, machinery, etc. 

4 Pole - T1ZH3/12.5/12.5/230R

Type 1 - Class I / Type 2 - Class II - Three Phase - 12.5kA -12.5kA - 275VAC

This Type 1/2 (Class I/II) surge protective device is for installation atThis Type 1/2 (Class I/II) surge protective device is for installation at LPZ 0A-2 or higher and is usually installed in the distribution-box or feeder bus of UPS, protecting devices or equipment downstream.

4 Pole - T1ZH3/25/100/230R

Type 1 - Class I / Type 2 - Class II - Three Phase - 25kA -100kA - 255VAC

This Type 1/2 (Class I/II) surge protective device is designed to protect low voltage devices from lightning and surge damages.

This product is our new version of the popular T1SP3/25/100/230R

4 Pole - T1ZH3/50/100/380R

Type 1 - Class I / Type 2 - Class II - Three Phase - 50kA -100kA - 380VAC

This Type 1/2 (Class I/II) surge protective device is designed to protect low voltage devices from lightning and surge damages.

600Vdc - T1PV2/12.5/600 & 600R

Type 1 - Class I / Type 2 - Class II - 12.5kA - 600VDC

The T1PV2/12.5/600 & T1PV2/12.5/600R  (Remote Version) are lightning arrester type 1+2 according to EN 61643-11. It is designed for protection of positive and negative busbars of photovoltaic systems against the surge effects.

800Vdc - T1PV2/12.5/800 & 800R

Type 1 - Class I / Type 2 - Class II - 12.5kA - 800VDC

The T1PV2/12.5/800 & T1PV2/12.5/800R (Remote Version) are lightning arrester type 1+2 according to EN 61643-11. It is designed for protection of positive and negative busbars of photovoltaic systems against the surge effects.

Brochure - Buildings SPDs

Building Surge Protection Devices Brochure 
This brochure contains information to help you choose what products are best for your requirements.

If there is any specific requirement you need please contact us on +44 (0) 1364 649248

DSP Series - Single & Three Phase

Type 1 - Class I / Type 2 - Class II / Type 3 - Class III - Single & Three Phase 40kA Surge Arresters 

These are hardwired single and three phase distribution panel protectors with 40kA of surge capacity and two stage (redundant) protection and provide pre-failure indication.

DSP-L&N Series - Single & Three Phase

Type 1 - Class I / Type 2 - Class II / Type 3 - Class III Single & Three Phase 40kA Surge Arresters

The DSP600 Series L & N types have site fault condition indicators and relay contacts, which provide remote indication of protection status.

Types of SPD Illustration

Types of SPD

Type 1 SPD is characterized by a 10/350 μs current wave.

The Type 1 SPD is recommended in the specific case of service-sector and industrial buildings, protected by a lightning protection system or a meshed cage. It protects electrical installations against direct lightning strokes. It can discharge the back-current from lightning spreading from the earth conductor to the network conductors.

Type 2 SPD is characterized by an 8/20 μs current wave.

The Type 2 SPD is the main protection system for all low voltage electrical installations. Installed in each electrical switchboard,it prevents the spread of overvoltages in the electrical installations and protects the loads.

Type 3 SPD is characterized by a combination of voltage waves(1.2/50 μs) and current waves (8/20 μs).

The Type 3 SPDs have a low discharge capacity. They must therefore mandatorily be installed as a supplement to Type 2 SPD and in the vicinity of sensitive loads.

With LPS Present - Illustration

With Lightning Protection System Present 

An example of high rise residential block with LPS (Lightning Protection System) installed.

The specification of the CLASS I SPD will depend on the LPS installed.eg: Level I, II, III, IV

A TYPE 1 / CLASS I SPD is essential for any system that is required to comply with BS EN 62305.

We recommend a co-ordinated approach where further, down stream protection is installed to prevent damage to sensitive equipment connected to consumer units.

With No LPS Present - Illustration

With No Lightning Protection System Present

Single Phase - Domestic Installation in High Rise Flats

This example shows a high rise residential block without LPS (Lightning Protection System) installed and the DNO (Distribution Network Operator) Supplied is via underground.

No LPS means that a TYPE 1 / CLASS I SPD is not required, how ever a TYPE 2 / CLASS II SPD should be installed to prevent damage to any electronics within the building from transient overvoltages created by non atmospheric conditions, eg: switching surges etc.

A secondary TYPE 2 / CLASS II SPD should also be considered due to equipment distance from original source of protection and the risk of damage should the incoming SPD sacrifices itself and leave the installation with no protection.

We would always recommend a co-ordinated approach where further, downstream protection is installed to prevent damage to sensitive equipment connected to consumer units.

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