Chapter 4
Installation
Page 16 of 20
Product Description ENS26
Version: A.02
Issue: 20.09.2005
4.2 Electrical
connection
4.2.1 Basic
configuration
The ENS 26 is connected directly and without any switchin elements be-
tween the mains and the feeding point of a phase.
Danger
Connection to the public electricity supply may only be performed by a
properly qualified and authorized electrician.
The ENS26 must be protected by a pre-fuse in the respective phase of the
mains feed circuit (min. 6 A, max. 25 A). Observe the circuit diagram.
4.2.2 Circuitry
Check that the mains power lines and power feed line (phase) are not con-
ducting electricity.
Switch the power generator (feeder) and the ENS26 as follows:
FEEDER UNI
T
UfE - ENS26
MAINS
L
N
M
A
IN
S
*
FEEDER
L
N
L N
N L
Note
The additional pre-fuse (*) is only necessary if the direct mains power
fuse protection exceeds 25 A.
