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Wp002-E-Outdoor Lighting Systems

This white paper discusses lightning and surge protection for outdoor lighting systems, detailing the requirements for installations in different lightning protection zones (LPZ 0A and LPZ 0B). It emphasizes the importance of earthing conductors, potential control measures, and the installation of appropriate lightning current arresters and surge protectors. The document also provides specifications for various protective devices and their configurations to ensure safety against lightning strikes.

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0% found this document useful (0 votes)
36 views12 pages

Wp002-E-Outdoor Lighting Systems

This white paper discusses lightning and surge protection for outdoor lighting systems, detailing the requirements for installations in different lightning protection zones (LPZ 0A and LPZ 0B). It emphasizes the importance of earthing conductors, potential control measures, and the installation of appropriate lightning current arresters and surge protectors. The document also provides specifications for various protective devices and their configurations to ensure safety against lightning strikes.

Uploaded by

jose
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Lightning and surge protection

for outdoorlighting systems


White Paper

Contents
Minimum dimensions of earthing
conductors for connecting lamp
poles
Standardisation and potential
control for lamp poles
Lightning equipotential bonding
for outdoor wall lamps (LPZ 0A)

www.dehn-international.com
Lightning and surge protection
for outdoorlighting systems
White Paper

Outdoor lighting systems can be installed at the outside walls ness of at least 5 cm in a radius of 3 m around the lamp pole
of a building and in open terrain. In both cases, it must be (Figure 1).
checked whether the outdoor lighting systems are located in
lightning protection zone LPZ 0A or LPZ 0B . Outdoor lighting To reduce step voltages, the IEC 62305-3 (EN 62305-3)
systems in LPZ 0A are subjected to direct lightning strikes, im- standard requires, for example, potential control. To this end,
pulse currents up to the full lightning current and the full light- four rings are buried around the lamp pole at distances of
ning field. In LPZ 0B they are protected against direct lightning 1.0 m; 4.0 m; 7.0 m and 10.0 at depths of 0.5 m; 1.0 m;
strikes, however, they are subjected to impulse currents up to 1.5 m and 2.0 m. These rings are interconnected by means of
partial lightning currents and the full lightning field. four connecting cables at right angles to each other and are
connected to the lamp pole (Figure 2).
Lamp poles in LPZ 0A have to be connected to one another in
the soil and to the earth electrodes of the buildings by means
of suitable earthing conductors. It is advisable to use Table 7 Material Configuration Earthing conductor
of IEC 62305-3 (EN 62305-3) when selecting the materials
and cross-sections to be used. Table 9.2.1 shows an excerpt Stranded /
Copper 50 mm2
of the before mentioned table for practical use. The relevant round / tape
material must always be selected with regard to its corrosion Round, galvanised 78 mm2
resistance. Steel
Tape, galvanised 90 mm2
It must be checked in each individual case whether measures
to reduce the probability of electric shock hazard resulting Stainless Round 78 mm2
from touch and / or step voltage must be taken. steel (V4A) Tape 100 mm2
Table 1 Minimum dimensions of earthing conductors for intercon-
To reduce touch voltages, the IEC 62305-3 (EN 62305-3) necting lamp poles in LPZ 0A and connecting lamp poles
standard requires, for example, an asphalt layer with a thick- to the earth-termination systems of the buildings

asphalt layer
≥ 5 cm

±0
–0.5 m –1.0 m
–1.5 m
–2.0 m
3m 3m
1m
4m
7m
10 m

Figure 1 Standing surface insulation to Figure 2 Potential control to reduce step voltage in case of a lightning strike to a lamp pole
reduce the risk of touch voltage
in case of a lightning strike to
a lamp pole

2 WP002/E/0515 © Copyright 2015 DEHN + SÖHNE


Lightning and surge protection
for outdoorlighting systems
White Paper

rad
i
roll us of t
ing h
sph e
ere

radiu
s
rollin of the
g sph
ere

Application Type Part No. Application Type Part No.


Lightning current arresters Lightning current arresters
TN system DB M 1 255 (2x) 961 120 TN-S system DB M 1 255 (4x) 961 120
DB M 1 255 961 120 DB M 1 255 (3x) 961 120
TT system TT system
DGP M 1 255 961 101 DGP M 1 255 961 101
Combined arresters Combined arresters
TN system DSH TN 255 941 200 TN-S system DSH TNS 255 941 400
TT system DSH TT 2P 255 941 110 TT system DSH TT 255 941 310
Figure 3 Outdoor lighting system in the form of a 230 V wall lamp Figure 4 Outdoor lighting system in the form of a 3x 230/400 V
in lightning protection zone 0A with lightning equipoten- lamp pole in lightning protection zone 0A with lightning
tial bonding at the entrance point into the building equipotential bonding at the entrance point into the
building

The recommended arrester types must be installed at the


transition from LPZ 0A to 1 or from LPZ 0B to 1.
Type 1 lightning current arresters must be provided at the
entrance point into the building for all outdoor lighting sys-
tems in LPZ 0A. To determine this lightning protection zone,
the relevant rolling sphere is “rolled over” the outdoor light- the
i u s of here
ing system from all possible directions. If the rolling sphere d
ra ng sp
i
touches the outdoor lighting system, it is located in LPZ 0A roll
(Figures 3 and 4).

Before installing type 1 lightning current arresters, it has to be


checked whether an energy-coordinated type 2 surge arrester
is already installed in the distribution board which houses the
circuits of the outdoor lighting system. If this is not the case,
we recommend to install combined arresters at the transition
of the lightning protection zones.
Type 2 surge arresters must also be installed at the entrance Application Type Part No.
point into the building for all outdoor lighting systems in TN system DG M TN 275 952 200
LPZ 0B (Figure 5).
TT system DG M TT 2P 275 952 110
Figure 5 Outdoor lighting system in the form of a 230 V wall lamp
in lightning protection zone 0B

WP002/E/0515 © Copyright 2015 DEHN + SÖHNE 3


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNgap

DGP M 255 (961 101)


■ Discharge capacity up to 100 kA (10/350 µs)
■ Total current arrester specifically designed for installation in "3+1" and "1+1" circuits of TT systems according to IEC 60364-5-53 between
neutral conductor N and protective conductor PE
■ Creepage discharge spark gap technology

Figure without obligation

Basic circuit diagram DGP M 255 Dimension drawing DGP M 255


Coordinated and modular single-pole N-PE lightning current arrester for UC = 255 V; also available with remote signalling contact for the monitoring
system (floating changeover contact).
Type DGP M 255
Part No. 961 101
SPD according to EN 61643-11 / IEC 61643-11 type 1 / class I
Max. continuous operating a.c. voltage (UC) 255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) (Iimp) 100 kA
Specific energy (W/R) 2.50 MJ/ohms
Voltage protection level (UP) ≤ 1.5 kV
Follow current extinguishing capability a.c. (Ifi) 100 Arms
Response time (tA) ≤ 100 ns
Temporary overvoltage (TOV) (UT) – Characteristic 1200 V / 200 ms – withstand
Operating temperature range (parallel connection) (TUP) -40 °C ... +80 °C
Operating temperature range (series connection) (TUS) -40 °C ... +60 °C
Operating state / fault indication green / red
Number of ports 1
2
Cross-sectional area (N, PE, 9) (min.) 10 mm solid / flexible
2 2
Cross-sectional area (N, PE) (max.) 50 mm stranded / 35 mm flexible
2 2
Cross-sectional area (9) (max.) 35 mm stranded / 25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 2 module(s), DIN 43880
Approvals VDE, KEMA, UL
Weight 315 g
Customs tariff number 85363010
GTIN 4013364118676
PU 1 pc(s)

4 WP002/E/0515 © Copyright 2015 DEHN + SÖHNE


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNbloc

DB M 1 255 (961 120)


■ Coordinated spark-gap-based lightning current arrester consisting of a base part and plug-in protection module
■ Maximum system availability due to RADAX Flow follow current limitation
■ Directly coordinated with DEHNguard surge protective devices without additional cable length

Figure without obligation

Basic circuit diagram DB M 1 255 Dimension drawing DB M 1 255


Coordinated modular single-pole ightning current arrester with high follow current limitation
Type DB M 1 255
Part No. 961 120
SPD according to EN 61643-11 Type 1
SPD according to IEC 61643-1/-11 Class I
Max. continuous operating a.c. voltage (UC) 255 V
Lightning impulse current (10/350 µs) (Iimp) 50 kA
Specific energy (W/R) 625.00 kJ/ohms
Nominal discharge current (8/20 µs) (In) 50 kA
Voltage protection level (UP) ≤ 2.5 kV
Follow current extinguishing capability a.c. (Ifi) 50 kArms
Follow current limitation/Selectivity no tripping of a 32 A gL/gG fuse up to 50 kArms (prosp.)
Response time (tA) ≤ 100 ns
Max. backup fuse (L) up to IK = 50 kArms (ta ≤ 0.2 s) 500 A gL/gG
Max. backup fuse (L) up to IK = 50 kArms (ta ≤ 5 s) 315 A gL/gG
Max. backup fuse (L-L') 125 A gL/gG
Temporary overvoltage (TOV) (UT) 440 V / 5 sec.
TOV characteristic withstand
Operating temperature range (parallel connection) (TUP) -40°C...+80°C
Operating temperature range (series connection) (TUS) -40°C...+60°C
Operating state/fault indication green / red
Number of ports 1
2
Cross-sectional area (L/N, L'/N', N/PE (N)) (min.) 10 mm solid/flexible
2 2
Cross-sectional area (L/N, N/PE(N)) (max.) 50 mm stranded/35 mm flexible
2 2
Cross-sectional area (L'/N') (max.) 35 mm stranded/25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 2 module(s), DIN 43880
Approvals VDE, KEMA, UL
Extended technical data: Use in installations with prospective short-circuit currents of more than 50 kArms (tested by VDE)
– Maximum prospective short-circuit current 100 kArms (220 kApeak)
– Limitation/extinction of mains follow currents up to 100 kArms (220 kApeak)
– Max. backup fuse (L) up to IK = 100 kArms (ta ≤ 0.2 s) 500 A gL/gG
– Max. backup fuse (L) up to IK = 100 kArms (ta ≤ 5 s) 315 A gL/gG
Weight 340 g
Customs tariff number 85363030
GTIN 4013364118614
PU 1 pc(s)

WP002/E/0515 © Copyright 2015 DEHN + SÖHNE 5


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNshield

DSH TT 2P 255 (941 110)


■ Application-optimised and prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester
■ Space-saving arrester for compact and simply equipped electrical installations with reduced technical requirements
■ Capable of protecting terminal equipment

Figure without obligation

Basic circuit diagram DSH TT 2P 255 Dimension drawing DSH TT 2P 255


Application-optimised and prewired combined lightning current and surge arrester for single-phase TT and TN-S systems ("1+1" circuit).
Type DSH TT 2P 255
Part No. 941 110
SPD according to EN 61643-11 / IEC 61643-11 type 1 + type 2 / class I + class II
Energy coordination with terminal equipment (≤ 5 m) type 1 + type 2 + type 3
Nominal a.c. voltage (UN) 230 V (50 / 60 Hz)
Max. continuous operating a.c. voltage (UC) 255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) [L+N-PE] (Itotal) 25 kA
Specific energy [L+N-PE] (W/R) 156.25 kJ/ohms
Lightning impulse current (10/350 µs) [L-N]/[N-PE] (Iimp) 12.5 / 25 kA
Specific energy [L-N]/[N-PE] (W/R) 39.06 / 156.25 kJ/ohms
Nominal discharge current (8/20 µs) [L-N]/[N-PE] (In) 12.5 / 25 kA
Voltage protection level [L-N]/[N-PE] (UP) ≤ 1.5 / ≤ 1.5 kV
Follow current extinguishing capability [L-N]/[N-PE] (Ifi) 25 kArms / 100 Arms
Follow current limitation / Selectivity no tripping of a 32 A gL/gG fuse up to 25 kArms (prosp.)
Response time (tA) ≤ 100 ns
Max. mains-side overcurrent protection 160 A gL/gG
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic 440 V / 120 min. – withstand
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic 1200 V / 200 ms – withstand
Operating temperature range (TU) -40 °C ... +80 °C
Operating state / fault indication green / red
Number of ports 1
2
Cross-sectional area (L, N, PE, 9) (min.) 1.5 mm solid / flexible
2 2
Cross-sectional area (L, N, PE, 9) (max.) 35 mm stranded / 25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 2 module(s), DIN 43880
Approvals KEMA, VDE, UL
Weight 275 g
Customs tariff number 85363030
GTIN 4013364137899
PU 1 pc(s)

6 WP002/E/0515 © Copyright 2015 DEHN + SÖHNE


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNshield

DSH TN 255 (941 200)


■ Application-optimised and prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester
■ Space-saving arrester for compact and simply equipped electrical installations with reduced technical requirements
■ Capable of protecting terminal equipment

Figure without obligation

Basic circuit diagram DSH TN 255 Dimension drawing DSH TN 255


Application-optimised and prewired combined lightning current and surge arrester for single-phase TN systems.
Type DSH TN 255
Part No. 941 200
SPD according to EN 61643-11 / IEC 61643-11 type 1 + type 2 / class I + class II
Energy coordination with terminal equipment (≤ 5 m) type 1 + type 2 + type 3
Nominal a.c. voltage (UN) 230 V (50 / 60 Hz)
Max. continuous operating a.c. voltage (UC) 255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) [L+N-PE] (Itotal) 25 kA
Specific energy [L+N-PE] (W/R) 156.25 kJ/ohms
Lightning impulse current (10/350 µs) [L, N-PE] (Iimp) 12.5 kA
Specific energy [L,N-PE] (W/R) 39.06 kJ/ohms
Nominal discharge current (8/20 µs) [L/N-PE]/[L+N-PE] (In) 12.5 / 25 kA
Voltage protection level [L-PE]/[N-PE] (UP) ≤ 1.5 /≤ 1.5 kV
Follow current extinguishing capability a.c. (Ifi) 25 kArms
Follow current limitation / Selectivity no tripping of a 32 A gL/gG fuse up to 25 kArms (prosp.)
Response time (tA) ≤ 100 ns
Max. mains-side overcurrent protection 160 A gL/gG
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic 440 V / 120 min. – withstand
Operating temperature range (TU) -40 °C ... +80 °C
Operating state / fault indication green / red
Number of ports 1
2
Cross-sectional area (L, N, PE, 9) (min.) 1.5 mm solid / flexible
2 2
Cross-sectional area (L, N, PE, 9) (max.) 35 mm stranded / 25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 2 module(s), DIN 43880
Approvals KEMA, VDE, UL
Weight 250 g
Customs tariff number 85363030
GTIN 4013364138209
PU 1 pc(s)

WP002/E/0515 © Copyright 2015 DEHN + SÖHNE 7


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNshield

DSH TT 255 (941 310)


■ Application-optimised and prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester
■ Space-saving arrester for compact and simply equipped electrical installations with reduced technical requirements
■ Capable of protecting terminal equipment

Figure without obligation

Basic circuit diagram DSH TT 255 Dimension drawing DSH TT 255


Application-optimised and prewired combined lightning current and surge arrester for TT and TN-S systems ("3+1" circuit).

Type DSH TT 255


Part No. 941 310
SPD according to EN 61643-11 / IEC 61643-11 type 1 + type 2 / class I + class II
Energy coordination with terminal equipment (≤ 5 m) type 1 + type 2 + type 3
Nominal a.c. voltage (UN) 230 / 400 V (50 / 60 Hz)
Max. continuous operating a.c. voltage (UC) 255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) [L1+L2+L3+N-PE] (Itotal) 50 kA
Specific energy [L1+L2+L3+N-PE] (W/R) 625.00 kJ/ohms
Lightning impulse current (10/350 µs) [L-N]/[N-PE] (Iimp) 12.5 / 50 kA
Specific energy [L-N]/[N-PE] (W/R) 39.06 / 625.00 kJ/ohms
Nominal discharge current (8/20 µs) [L-N]/[N-PE] (In) 12.5 / 50 kA
Voltage protection level [L-N]/[N-PE] (UP) ≤ 1.5 / ≤ 1.5 kV
Follow current extinguishing capability [L-N]/[N-PE] (Ifi) 25 kArms / 100 Arms
Follow current limitation / Selectivity no tripping of a 32 A gL/gG fuse up to 25 kArms (prosp.)
Response time (tA) ≤ 100 ns
Max. mains-side overcurrent protection 160 A gL/gG
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic 440 V / 120 min. – withstand
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic 1200 V / 200 ms – withstand
Operating temperature range (TU) -40 °C ... +80 °C
Operating state / fault indication green / red
Number of ports 1
2
Cross-sectional area (L1, L2, L3, N, PE, 9) (min.) 1.5 mm solid / flexible
2 2
Cross-sectional area (L1, L2, L3, N, PE, 9) (max.) 35 mm stranded / 25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 4 module(s), DIN 43880
Approvals KEMA, VDE, UL
Weight 480 g
Customs tariff number 85363030
GTIN 4013364131798
PU 1 pc(s)

8 WP002/E/0515 © Copyright 2015 DEHN + SÖHNE


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNshield

DSH TNS 255 (941 400)


■ Application-optimised and prewired type 1 and type 2 spark-gap-based combined lightning current and surge arrester
■ Space-saving arrester for compact and simply equipped electrical installations with reduced technical requirements
■ Capable of protecting terminal equipment

Figure without obligation

Basic circuit diagram DSH TNS 255 Dimension drawing DSH TNS 255
Application-optimised and prewired combined lightning current and surge arrester for TN-S systems.
Type DSH TNS 255
Part No. 941 400
SPD according to EN 61643-11 / IEC 61643-11 type 1 + type 2 / class I + class II
Energy coordination with terminal equipment (≤ 5 m) type 1 + type 2 + type 3
Nominal a.c. voltage (UN) 230 / 400 V (50 / 60 Hz)
Max. continuous operating a.c. voltage (UC) 255 (50 / 60 Hz)
Lightning impulse current (10/350 µs) [L1+L2+L3+N-PE] (Itotal) 50 kA
Specific energy [L1+L2+L3+N-PE] (W/R) 625.00 kJ/ohms
Lightning impulse current (10/350 µs) [L, N-PE] (Iimp) 12.5 kA
Specific energy [L,N-PE] (W/R) 39.06 kJ/ohms
Nominal discharge current (8/20 µs) [L/N-PE]/[L1+L2+L3+N-PE]
(In) 12.5 / 50 kA
Voltage protection level [L-PE]/[N-PE] (UP) ≤ 1.5 / ≤ 1.5 kV
Follow current extinguishing capability a.c. (Ifi) 25 kArms
Follow current limitation / Selectivity no tripping of a 32 A gL/gG fuse up to 25 kArms (prosp.)
Response time (tA) ≤ 100 ns
Max. mains-side overcurrent protection 160 A gL/gG
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic 440 V / 120 min. – withstand
Operating temperature range (TU) -40 °C ... +80 °C
Operating state / fault indication green / red
Number of ports 1
2
Cross-sectional area (L1, L2, L3, N, PE, 9) (min.) 1.5 mm solid / flexible
2 2
Cross-sectional area (L1, L2, L3, N, PE, 9) (max.) 35 mm stranded / 25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 4 module(s), DIN 43880
Approvals KEMA, VDE, UL
Weight 525 g
Customs tariff number 85363030
GTIN 4013364133563
PU 1 pc(s)

WP002/E/0515 © Copyright 2015 DEHN + SÖHNE 9


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNguard

DG M TT 2P 275 (952 110)


■ Prewired complete unit consisting of a base part and plug-in protection modules
■ High discharge capacity due to heavy-duty zinc oxide varistors / spark gaps
■ High reliability due to "Thermo Dynamic Control" SPD monitoring device

Figure without obligation

Basic circuit diagram DG M TT 2P 275 Dimension drawing DG M TT 2P 275


Modular surge arrester for use in single-phase TT and TN systems ("1+1" circuit).
Type DG M TT 2P 275
Part No. 952 110
SPD according to EN 61643-11 / IEC 61643-11 type 2 / class II
Nominal a.c. voltage (UN) 230 V (50 / 60 Hz)
Max. continuous operating a.c. voltage [L-N] (UC) 275 V (50 / 60 Hz)
Max. continuous operating a.c. voltage [N-PE] (UC) 255 V (50 / 60 Hz)
Nominal discharge current (8/20 µs) (In) 20 kA
Max. discharge current (8/20 µs) (Imax) 40 kA
Lightning impulse current (10/350 µs) [N-PE] (Iimp) 12 kA
Voltage protection level [L-N] (UP) ≤ 1.5 kV
Voltage protection level [L-N] at 5 kA (UP) ≤ 1 kV
Voltage protection level [N-PE] (UP) ≤ 1.5 kV
Follow current extinguishing capability [N-PE] (Ifi) 100 Arms
Response time [L-N] (tA) ≤ 25 ns
Response time [N-PE] (tA) ≤ 100 ns
Max. mains-side overcurrent protection 125 A gG
Short-circuit withstand capability for max. mains-side overcurrent
protection (ISCCR) 50 kArms
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic 335 V / 5 sec. – withstand
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic 440 V / 120 min. – safe failure
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic 1200 V / 200 ms – withstand
Operating temperature range (TU) -40 °C ... +80 °C
Operating state / fault indication green / red
Number of ports 1
2
Cross-sectional area (min.) 1.5 mm solid / flexible
2 2
Cross-sectional area (max.) 35 mm stranded / 25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 2 module(s), DIN 43880
Approvals KEMA, VDE, UL, VdS
Weight 242 g
Customs tariff number 85363030
GTIN 4013364108417
PU 1 pc(s)

10 WP002/E/0515 © Copyright 2015 DEHN + SÖHNE


White Paper: Lightning and surge protection for outdoorlighting systems

DEHNguard

DG M TN 275 (952 200)


■ Prewired complete unit consisting of a base part and plug-in protection modules
■ High discharge capacity due to heavy-duty zinc oxide varistors / spark gaps
■ High reliability due to "Thermo Dynamic Control" SPD monitoring device

Figure without obligation

Basic circuit diagram DG M TN 275 Dimension drawing DG M TN 275


Modular surge arrester for use in single-phase TN systems.
Type DG M TN 275
Part No. 952 200
SPD according to EN 61643-11 / IEC 61643-11 type 2 / class II
Nominal a.c. voltage (UN) 230 V (50 / 60 Hz)
Max. continuous operating a.c. voltage (UC) 275 V (50 / 60 Hz)
Nominal discharge current (8/20 µs) (In) 20 kA
Max. discharge current (8/20 µs) (Imax) 40 kA
Voltage protection level (UP) ≤ 1.5 kV
Voltage protection level at 5 kA (UP) ≤ 1 kV
Response time (tA) ≤ 25 ns
Max. mains-side overcurrent protection 125 A gG
Short-circuit withstand capability for max. mains-side overcurrent
protection (ISCCR) 50 kArms
Temporary overvoltage (TOV) (UT) – Characteristic 335 V / 5 sec. – withstand
Temporary overvoltage (TOV) (UT) – Characteristic 440 V / 120 min. – safe failure
Operating temperature range (TU) -40 °C ... +80 °C
Operating state / fault indication green / red
Number of ports 1
2
Cross-sectional area (min.) 1.5 mm solid / flexible
2 2
Cross-sectional area (max.) 35 mm stranded / 25 mm flexible
For mounting on 35 mm DIN rails acc. to EN 60715
Enclosure material thermoplastic, red, UL 94 V-0
Place of installation indoor installation
Degree of protection IP 20
Capacity 2 module(s), DIN 43880
Approvals KEMA, VDE, UL, VdS
Weight 229 g
Customs tariff number 85363030
GTIN 4013364108394
PU 1 pc(s)

WP002/E/0515 © Copyright 2015 DEHN + SÖHNE 11


www.dehn-international.com/partners

Surge Protection DEHN + SÖHNE Hans-Dehn-Str. 1 Tel. +49 9181 906-0


Lightning Protection GmbH + Co.KG. Postfach 1640 Fax +49 9181 906-1100
Safety Equipment 92306 Neumarkt info@dehn.de
DEHN protects. Germany www.dehn-international.com

www.dehn-international.com/partners

Type designations of products mentioned in the white paper being at the same time registered trademarks are not especially marked. So if there is no marking of ™ or ® this does not
mean that the type designation is a free trade name. Neither it can be seen whether patents or utility models and other intellectual and industrial property rights are available. We reserve
the right to introduce changes in performance, configuration and technology, dimensions, weights and materials in the course of technical progress. The figures are shown without obligation.
Misprints, errors and modifications excepted. Reproduction in any form whatsoever is forbidden without our authorisation.
actiVsense, BLITZDUCTOR, BLITZPLANER, DEHN, DEHN Logo, DEHN schützt, DEHNbloc, DEHNfix, DEHNgrip, DEHNguard, DEHNport, DEHNQUICK, DEHNrapid, DEHNshield, DEHNsnap,
DEHNventil, HVI, LifeCheck, Red/Line are protected by German Trade Mark, by Community Trade Mark (EU) and/or in other countries.

WP002/E/0515 © Copyright 2015 DEHN + SÖHNE

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