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HAVELLS
N-PE:
Voltage protection level
U
p
at
U
oc
of 6 kV 1.2/50 µs
and
I
sc
of 3 kA 8/20 µs (per mode)
628 V
2
L-PE:
Voltage protection level
U
p
at
U
oc
of 6 kV 1.2/50 µs
and
I
sc
of 3 kA 8/20 µs (per mode)
704 V
2
Transient overvoltage performance L-N
Transient overvoltage performance L-PE
Transient overvoltage performance N-PE
Transient Overvoltage Performance
Test Certificate
Surge Protective Device (SPD):
Furse ESP 240 M1
For installation in Havells distribution boards:
Type ‘A’ SPN: PSA4, PSA7, PSA10, PSA13, PSA16
The Havells/Furse solution combines best-in-class mains power
distribution with transient overvoltage protection ensuring
controlled and verified SPD installation in line with IET Wiring
Regulations 17th Edition, BS 7671:2008(+A1:2011), for optimal
protection of installed equipment.
Installed performance test:
IEC 61643-11 Class III Combination waveform
6 kV (1.2/50 µs voltage) 3 kA (8/20 µs current)
Date:
Transient specification (at SPD terminals)
Voltage protection level
U
p
at
U
oc
of 6 kV 1.2/50 µs
and
I
sc
of 3 kA 8/20 µs (per mode)
600 V
1
All testing performed in accordance with IEC 61643-11 Class III test 6 kV (1.2 µs voltage) 3 kA (8/20 µs current) for
verifying SPD transient overvoltage protective performance at terminal equipment level.
2
Typical values, subject to manufacturing component tolerances. Essential detail relates to voltage protection level
U
p
<715 V for effective protection below impulse immunity/susceptibility of equipment.
Transient specification (installed performance - SPD to Type ‘A’ SPN board)
L-N:
Voltage protection level
U
p
at
U
oc
of 6 kV 1.2/50 µs
and
I
sc
of 3 kA 8/20 µs (per mode)
684 V
2
Target voltage protection level
U
p
:
(2 x peak operating voltage, 230 V AC system)
715 V
This document certifies that the Furse ESP 240 M1 SPD has
been installed on the Havells Type ‘A’ SPN distribution board in
accordance with best practice principles to IET Wiring Regulations
17th Edition, BS 7671:2008(+A1:2011) and tested to achieve the
voltage protection levels (
U
p
) shown above.
1
The maximum transient overvoltage let-through the SPD throughout the test (±5%), phase to neutral, phase to earth
and neutral to earth.
Havells UK:
Longbow House, 14-20 Chiswell Street, London, EC1Y 4TW Tel: 0843 2275 388
Furse:
Wilford Road, Nottingham, NG2 1EB Tel: 0115 964 3700
Signed:
Keith Herrington
R&D Manager, Furse ESP
12th July 2012