151 / 430
Sales Service Centre • 01952 675612 Technical Support Helpline • 01952 675689
4.29
Surge Protection Devices and Surge Protection Kit
SPD’s protect electrical
and electronic equipment
against transients, originating
from lightning, switching of
transformers, lighting and motors
These transients 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 transients, to protect sensitive
and expensive electrical
equipment such as TV, video,
washing machines, Hi-Fi, PC,
alarm etc.
The choice of SPD depends on a
number of criteria such as:
• The risk of lightening strikes
• The exposure of the building
to transients.
• The sensitivity and value of the
electrical equipment that
requires protection.
• Earthing system
• Level of protection
The range of SPDs is separated
into 3 types of protection:
1. Main protection - class 1
SPDs with higher discharge
current (Imax 10/350),
to evacuate as much of
the transient overvoltages
associated with lightening
strikes
2. Main protection - class 2
With a discharge current (Imax
8/20), to evacuate as much of
the transient overvoltage 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
Complies with IEC61643-1
Reserve Status Indicator
(R versions)
End of Life Indicator
(D versions)
OK
Auxiliary contact for remote
signalling (R versions only)
14
12
11
230V~ 1A
12V ... 10mA
Installation and Connection
The main protection SPDs are
installed directly after the main
incoming switch or RCCB
(type S).
SPDs can be used in any supply
system e.g TNCS, TNS, TT.
Options: Replacement
cartridges.
Connected in parallel to the
equipment to be protected.
Protection is assured in both
common and differential modes.
SPDs with Low Let Through
Voltage Levels Type 3
To protect very sensitive
electronic equipment. This fine
protection complements the
main protection and can protect
1 or many electronic devices.
Optimal coordination is obtained
when cascaded with a main
protection device.
Discharge current
Imax. 8kA (8/20 wave)
a green LED on the front face
indicates the status of the SPD
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
Connection Capacity
Terminal blocks L, N & E
• Rigid conductor: 10mm
2
• Flexible conductor: 6mm
2
Replacement Cartridges
The cartridges replace the
cartridge in the main SPN*
devices.
They allow simple replacement
without the need to cut-off the
power supply.
Cartridges are available for all
discharge currents (40kA and
15kA) with and without condition
indication.
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
For technical details see page
4.55 - 4.59.
Class 1 + 2 (Class 1 + 2 + 3 if less than 5m) (with lifetime indicator)
Poles I imp kA I imp kA
I n
I n
U p kV
Single or
Width (mm)
Cat ref.
Cat ref.
L-N
N-PE
L-N
N-PE
Three Phase
with remote contact
2
12.5 25
-
-
≤1.5
Single
35
SPA201
-
4
12.5 50
-
-
≤1.5
Three
70
SPA401
-
4
25
100
-
-
≤1.5
Three
140
SPN801
SPN801R
4
25
100
-
-
≤1.5
Three
140
SPN802
SPN802R
TNS TNC-S TT
SPA201
3 3 3
SPA401
3 3 3
SPN801
3 3 2
SPN802
2 2 3
SPN215D
3 3 3
SPN415D
3 3 3
SPN440D
3 3 3
SP202N
3 3 3
Replacement Cartridges (SPN8* range)
Dimensions
Cat ref.
Phase replacement for SPN800, SPN800R, SPN801, SPN801R, SPN802 & SPN802R
SPN080
Neutral replacement for SPN801, SPN801R, SPN802, SPN802R
SPN080N
SPN801R
SPN080
Protection
Devices