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Data is subject to errors and technical modifications.
4.14
Residential
Distribution
Protection Devices
Surge Protection
Surge Protection
Characteristics
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SPD’s protect electrical and electronic equipment against transients, originating from lightning, switching of transformers,
lighting and motors. These transient voltages can cause premature ageing of equipment, downtime, or complete destruction
of electronic components and materials. SPDs are strongly recommended on installations that are exposed to transient
voltages, to protect sensitive and expensive electrical equipment such as TV, video, Hi-Fi, PC, alarm etc.
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The range of SPDs is separated into 3 types of protection:
1. Main protection - class 1
- SPDs with higher discharge current (I max 10/350), to evacuate as much of the transient
over-voltages associated with lightning strikes
2. Main protection - class 2
- With a discharge current (I max 8/20), to evacuate as much of the transient over-voltage to
earth as possible protection level (Up ≤ 1000V).
3. Main protection - class 3
- To cut-down the transient surge as low as possible to protect very sensitive equipment.
Technical Data
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Complies with IEC61643-1.
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D Versions: end of life indicator, auxiliary contact for remote indication.
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R Versions: reserve status indicator, signalling.
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Connection Capacity (terminal blocks L, N & E): Rigid conductor: 10mm², Flexible conductor: 6mm².
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230V a.c. 1A. 12V...10mA.
Installation and Connection
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The main protection SPDs are installed directly after the main incoming switch or RCCB
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Connected in parallel to the equipment to be protected.
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Protection is assured in both common and differential modes.
SPDs with Low Let Through Voltage Levels Type 3
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To protect very sensitive electronic equipment. This fine protection complements the main protection and can protect one or
many electronic devices.
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Optimal coordination is obtained when cascaded with a main protection device.
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A green LED on the front face indicates the status of the
SP202N
, connected in series with the equipment that needs to be
protected (with a maximum line current of 25A). Protection is assured in both common and differential modes.
Replacement Cartridges
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Allow simple replacement without the need to cut-off the power supply.
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Cartridges are available for all discharge currents, (40kA and 15kA) with and without condition indication.
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A keying system exists to prevent a line cartridge being interchanged by mistake with a neutral one and visa versa neutral
cartridges have a discharge current of 65kA.
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For technical details see page
OK
Surge Protection Devices
Class 1 + 2 (Class 1 + 2 + 3 if less than 5m) (with lifetime indicator)
I n kA
L-N
I n kA
N-PE
I imp
L-N
I imp
N-PE
U p kV
Width (mm)
Cat ref.
Cat ref.
with remote contact
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12.5
25
≤1.5
35
SPA201
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Class 2 (with lifetime indicator)
5
15
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≤ 1.2
17.5
SPN115D
SPN115R
5
15
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≤ 1.2
35
SPN215D
SPN215R
15
40
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≤ 1.2
35
SPN240D
SPN240R
Class 3 (Fine Protection) (with lifetime indicator)
3
3
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≤ 1.5
17.5
SPN203N
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PV Applications (DC side) (with lifetime indicator)
12.5
25
≤ 4
52.5
SPV325
-
SPN240R
Replacement Cartridges
Description
Cat ref.
Phase replacement for
SPN215D
SPN015D
Phase replacement for
SPN215R
SPN015R
Phase replacement for
SPN240D
SPN040D
Phase replacement for
SPN240R
SPN040R
Neutral replacement for
SPN215D
,
SPN215R
SPN040N
SPN040D
Consumer Unit Kit Type 2 SPD with SPN215D (with lifetime indicator)
Poles
I n kA
L-N
I n kA
N-PE
U p kV
Width (mm)
Cat ref.
2
5
15
≤ 1.2
35
VA02SPD
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Consists of: Neutral terminal bar, 3x 20mm neutral link bar 370mm, 300mm & 200mm lengths, 4mm² neutral, live & earth
cables, 2 connector busbar, 4 way terminal bar, terminal bar clip, 1x Double Pole SPD’s, 32A MCB
Reserve Indicator Light
Neutral cartridges cannot be put
into spares reserved for phase
cartridges and visa versa.
Normal
Reserve End of Life