Flowserve NRS 1-51 - Manual (Page 15)

5
27 16
1 2 3 4 5 6 7 8
17 18 19 20 21 22 23 24
9
25
10
26
11 12
28
13
29
14
30
15
NRG 1...-51
1 2 3
+ -
M 0,5A
Electrical Connection
– continued –
Fig. 7
Wiring diagram for level switch NRS 1-51
L N
(+) (-)
8
9 0
a
0
b
c
8
Mains supply
9 Signal output  for external alarm 4-30 V AC/DC 00 mA
0
Control circuit, input and output
a Wire link, fitted on site, when used as high water level alarm acc. to TRD, EN 95 / EN 953
b
Stand-by input , 4 V DC, for connecting the logic unit SRL 6-50
c Level electrode NRG ...-5, NRG ...-
Key
M 0.5A