Honeywell International Inc. RTU-B12 用户手册
Page 10
Electrical Connections
Electrical Connections
The RTU is powered at low voltage (12V
DC
120mA) by a battery-operated
power supply module (RTU-Qxx). When determining the correct size for
power cables, refer to the table below.
power cables, refer to the table below.
Type of cable
Lengt h (m) in r elat ion t o effect ive load
AWG
mm2
ohm/Km 1 0 0 [mA] 2 0 0 [mA] 5 0 0 [mA]
1 [A]
2 [A]
5 [A]
1 2
3 ,3
5 ,7
1 7 5 4
8 7 7
3 5 1
1 7 5
8 8
3 5
1 4
2
8 ,8
1 1 3 6
5 6 8
2 2 7
1 1 4
5 7
2 3
1 6
1 ,3
1 4
7 1 4
3 5 7
1 4 3
7 1
3 6
1 4
1 8
0 ,9
2 1
4 7 6
2 3 8
9 5
4 8
2 4
1 0
2 0
0 ,6
3 4
2 9 4
1 4 7
5 9
2 9
1 5
6
2 2
0 ,3 5
5 2
1 9 2
9 6
3 8
1 9
1 0
4
2 4
0 ,2
8 5
1 1 8
5 9
2 4
1 2
6
2