En Surge Protective Device; Product Description; Target Group; General Safety Information - OBO Bettermann V20-75 Serie Instrucciones De Instalación

Installation instructions

EN Surge Protective Device

Item no. Type
5095 360 V20-0-75
5095 141 V20-1-75
5095 142 V20-2-75
5095 221 V20-1+NPE-75
5095 600 C20-0-255
*
Figure
1

Product description

Surge protection device for equipotential bonding
of power supply systems according to VDE 0100-
443 (IEC 60364-4-44). For mounting on hat rails
and use in distributor housings. Arresters (Figure
) can be connected individually and are en-
1
coded on the rear side, in order to avoid incorrect
connection. They possess a thermodynamic cut-
off unit and have an arresting capacity of up to 40
kA (8/20) per pole.
If there is an error, the visual display switches
from green (grey) to red (Figure
With snap-on hat rail bracket (Figure
The spark gap C20-0-255 is intended as an ar-
rester between the neutral conductor N and the
protective conductor (PE conductor).

Target group

The device may only be mounted and connected
by an electrical technician.

General safety information

• Before working on power cables, ensure that
they are de-energised and secure them against
unintentional switch-on!
• Do not carry out mounting work during a storm!
• Comply with national laws and standards, e.g.
VDE 0100-534 (IEC 60364-5-53)!
OBO Bettermann GmbH & Co. KG
Product
Single arrester*
Single pole
Two-pole
Single-pole with NPE
Single arrester*

Mounting and installation

The device can be installed in any position (e.g.
vertical or horizontal).
Figure
specifies that,
– in the case of single-branch wiring,
– or, in the case of V wiring,
should never exceed 0.5 m.
For V wiring, use the connection terminal, item
).
no. 5012 010.
).
2
• Clamp the protection device onto the hat rail,
• Maintain the stripping length and tightening
• Connection according to the circuit diagram
Protection path I
Total
– –
L – PE/N –
L – PE/N 80 kA
L – N, N – PE 60 kA
– –
: VDE 0100-534 (IEC 60364-5-53)
connection length a + b
length c
Caution! Risk of overloading!
The connection terminal 5012 010 is
approved for a maximum current load ≤ 50
A.
Use a suitable back-up fuse!
ensuring that the lockable hat rail holder is un-
locked (Figure ).
2
torque (Figure ).
(TN systems or TN-S / TT systems).
V20-...-75
Circuit
EN
I diagram
PE
Figure
– –
250 μA
1
250 μA
2
< 2 μA
4
– –
the total
1
the connection
2
8