Installation
POLARIS SMART HMI
- for Zone 1/21
POLARIS Smart HMI 7” W
EN 30/54
Technical data subject to change.
04/2018
R
l
A
=
⋅
κ
R
U
I
=
∆
∆
U
l
A
I
=
⋅
⋅
κ
Examples
Cable-cross-section
Maximum line length
Supply voltage DC 24 V
0,75 mm²
approx. 67 m
1,5 mm²
approx. 134 m
2,5 mm²
approx. 224 m
If the voltage drop cannot be balanced out or the calculation produces excessive cable
cross-sections, a separate mains adapter must be installed near the installation site.
Example:
pressure-tight encapsulation or ex-free area on the outside of the building.
6.7.2
Back-up fuse
The POLARIS SMART HMI with DC 24 V is internally protected by a 2 A fuse. The fuse
can trip in the case of voltage drops or undervoltage.
Internal fuse
I
2
value
External fuse
Siba
2 A T
1500A@250V
AC/DC
13 A
2
s
Siba
Type 179021
1.6 A F
1500A@250VAC
2.0 A F
1500A@250VAC
We recommend protecting the POLARIS with an upstream fuse to prevent blowing the
fuse inside the device. Only BARTEC can change the internal fuse.
Back-up fuse DC: 4 A quick-acting.
The I
2
value is to be observed for other versions of the fuses.
Содержание POLARIS SMART HMI 17-71V6-1 Series
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