NHSPD4123T1 Series Single Phase 3 Wire Systems
“
Product Specifications:
- Indoor Use Only
- Coding: A
- V-wiring Standards: BS7671:2008, DIN VDE
0100-534, IEC 60364-5-53 - Backup Fuse: F1 A gL/gG (25A, 35A, 40A, 50A,
63A, 80A) - S2 mm2: 6, 6, 6, 10, 10, 16
- SPE mm2: 16, 16, 16, 16, 16, 16
- Protection Level: Up to lightning protection
level max. UC, nominal voltage UN - Short Circuit Current Rating: ISCCR
- Temperature Range: Suitable for a range of
temperatures - Degree of Protection: IP20
Product Usage Instructions:
Safety Instructions:
Safety Notes:
Insulation resistance measurements: Unplug all protection
modules before performing an insulation resistance measurement in
the system to avoid inaccurate readings. Re-insert the plug modules
into the base element after the measurement.
Installation:
- Ensure indoor use only.
- Follow coding guidelines.
- Connect according to V-wiring standards.
Backup Fuse Replacement:
- Identify the appropriate backup fuse based on the
specifications. - Replace the backup fuse using the recommended fuse by the
manufacturer.
Maintenance:
- Regularly check for any signs of damage or wear.
- If any issues are detected, consult a professional for repair
or replacement.
Coding:
The product is coded as “A” for identification purposes.
Frequently Asked Questions (FAQ):
Q: Can this product be used outdoors?
A: No, this product is designed for indoor use only.
Q: What is the recommended backup fuse size?
A: The recommended backup fuse sizes are 25A, 35A, 40A, 50A,
63A, and 80A.
Q: How do I perform insulation resistance measurements?
A: Unplug all protection modules before conducting insulation
resistance measurements to ensure accurate results. Re-insert the
plug modules after the measurement.
“`
SPD SPD
Indoor use only
Coding
A
V-wiring BS7671:2008 + A1:2011-534 DIN VDE 0100-534; IEC 60364-5-53 0,5 m preferred, max. 1 m
Backup Fuse
F1 A gL/gG
25 35 40 50 63 80
S2 mm2
6 6 6 10 10 16
SPE mm2 16 16 16 16 16 16
RSC
NHSPD4123T1
protective system requirement class
NHSPD4183T1 module
NHSPD4182T1 module
lightning protection level max. continuous operating voltage UC nominal voltage UN lightning test current Iimp (10/350)s per path nominal discharge surge current In (8/20)s per path max. discharge surge current Imax (8/20)s per path protection level Up UTOV (withstand, 5 sec. (L-N)/ withstand, 200 msec. (N-PE)) short circuit current rating ISCCR temperature range degree of protection max. backup fuse min. L, N, PE max. L, N, PE tightening torque
replacement plug in module
NHSPD4123T1
TN-S / TT / TN-C L, N, PE
B, C acc. VDE 0675-6; SPD class I, II acc. IEC 61643-11; SPD Type 1, Type 2 acc. EN 61643-11
III, IV L-N: 335 V a.c / N-PE: 264 a.c.
230/400 V a.c. … 240/415 V a.c. 50/60 Hz
L-N: 12.5 kA / N-PE: 50 kA
L-N: 12,5 kA / N-PE: 50 kA
L-N: 50 kA / N-PE: 50 kA
L-N: 1,2 kV / N-PE: 1,7 kV
L-N: 415 V a.c. / N-PE: 1200 V a.c.
25 kAeff
-40 … +80°C
IP20
16 mm
160 A gL/gG 1.5 mm2 35 mm2
16 mm
1.5 mm2 25 mm2
3 Nm (1,5 mm² … 16 mm²) 4,5 Nm (25 mm² … 35 mm²)
NHSPD4182T1 (N-PE) / NHSPD4183T1 (L-N)
transparent
red
Recycling
TN-S / TT
SPD
b
b 0,5 m
RSC
66
B
Stub wiring BS7671:2008 + A1:2011-534 DIN VDE 0100-534 (a, b 0,5 m) IEC 60364-5-53; CEI 81-8:2002-02 (a + b 0,5 m) 0,5 m preferred, max. 1 m
RSC
66
L1 N
s 2
s PE
L1
N PE
L1 N
s PE
s 2
L1
N PE
SPD
a a, b £ 0,5 m b
Backup Fuse
F1
F2
A gL/gG A gL/gG
S2 mm2
SPE mm2
25
6
16
35
6
16
40
6
16
50
6
16
63
10
16
80
10
16
100
16
16
125
16
16
> 160
160
25
25
fuse recommended by the manu-
facturer 160
Safety instructions
see back view
remote signalling contact
NHSPD4123T1
RSC
Umax/Imax
a.c.: 250 V/ 1.5 A
Umax/Imax d.c.: 30 V/ 1.5 A
12 11 14
7mm
0,25 Nm 0.14 mm2 – 1.5 mm2
7mm
Z-NR: 9058479_03/2019-04-02
Electrium Sales Limited Walkmill Lane, Cannock, WS11 0XE, England Tel: 01543 455000 Fax: 01543 455001
The NHSPD4123T1 are lightning arresters with pluggable NHSPD4183T1 protection modules on varistor basis and an encapsulated NHSPD4182T1 spark gap.
Safety notes
The device may only be connected and installed by a qualified electrician. The national rules and safety regulations must be observed (see also BS7671:2008). Country-specific regulations and laws must also be observed. The device may only be used under the conditions shown and referred to in these installation instructions. Loads above the values indicated can lead to the destruction of the device and the electrical equipment connected. The manufacturer’s warranty no longer applies if the device is opened.
Insulation resistance measurements Unplug all the protection modules before performing an insulation resistance measurement in the system. Otherwise inaccurate measurements are possible. Re-insert the plug modules into the base element after the insulation resistance measurement.
Documents / Resources
![]() |
WYLEX NHSPD4123T1 Series Single Phase 3 Wire Systems [pdf] Installation Guide NHSPD4123T1, NHSPD4183T1, NHSPD4182T1, NHSPD4123T1 Series Single Phase 3 Wire Systems, NHSPD4123T1 Series, Single Phase 3 Wire Systems, Phase 3 Wire Systems, 3 Wire Systems |