Installation instructions V20-...-550
OBO Bettermann GmbH & Co. KG 8
EN
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
1) can be connected individually and are en-
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).
Only V20-..+FS..: With module for remote sig-
nalling through potential-free changeover contact
(Figure ).
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)!
Mounting and installation
The device can be installed in any position (e.g.
vertical or horizontal).
Figure : VDE 0100-534 (IEC 60364-5-53)
specifies that,
– in the case of single-branch wiring,
the total
connection length a + b
– or, in the case of V wiring,
the connection
length c
should never exceed 0.5 m.
For V wiring, use the connection terminal, item
no. 5012 010.
Caution! Risk of overloading!
The connection terminal 5012 010 is
approved for a maximum current load ≤ 50
A.
Use a suitable back-up fuse!
• Clamp the protection device onto the hat rail,
ensuring that the lockable hat rail holder is un-
locked (Figure
).
• Maintain the stripping length and tightening
torque (Figure ).
• Connection according to the circuit diagram
(TN systems or TN-S / TT systems).
Dismantling
Figure :
• Unlock and remove arresters in the manner
shown.
• Open the hat rail holder with a flat screwdriver
and engage it (see also Figure
). Remove
the protection devices.
EN Surge Protective Device
Item no. Type Product Protection path ITotal IPE
Circuit
diagram
Figure
5095 372 V20-0-550 Single arrester* – – – –
5095 211 V20-1-550 Single pole L – PE/N – < 500 μA 1
5095 212 V20-2-550 Two-pole L – PE/N 80 kA < 500 μA 2
5095 213 V20-3-550 Three-pole L – PE/N 120 kA < 500 μA 3
5095 214 V20-4-550 Four-pole L – PE, N – PE 160 kA < 500 μA 4
5095 312 V20-2+FS-550 Two-pole with FS L – PE/N 80 kA < 500 μA 2
5095 313 V20-3+FS-550 Three-pole with FS L – PE/N 120 kA < 500 μA 3
5095 314 V20-4+FS-550 4-pole with FS L – PE, N – PE 160 kA < 500 μA 4
5095 600 C20-0-255 Single arrester* – – – –
*Figure
