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NRS 1-51 - USA - Installation & Operating Manual -
850695-00
d
d
e
e
f
f
Fig. 5
Fig. 6
Electrical connection
Example switching combinations
Key
Steam boiler plants
Figure 5
Combination consisting of 1x NRG 1...-51 level electrode plus NRS 1-51 level switch as a high
level alarm.
For further uses, please refer to the regulations in your country
Figure 6
Combination consisting of 1x NRG 1...-51 level electrode plus NRS 1-51 level switch as a high
level alarm. The level switch opens two separate control circuits.
d
Level electrode(s) NRG 1...-51
e
Level switch NRS 1-51
f
Control circuit
Bringing into service
There is a risk of electric shock during work on electrical systems.
■
Always switch off the voltage to the plant before performing connection work.
■
Check that the plant is not carrying live voltage before commencing work.
