Level Switch NRS 1-50 For TWO Electrodes

The level switch NRS 1-50 is used in conjunction with level electrode NRG 1...-.. to limit the water level in steam boilers and (pressurised) hot-water plants.
Water level limiters switch off the heating when the water level falls below the set minimum level (low water).
Depending on the directives listed below the level switch NRS 1-50 can be used in combination with the following level electrodes:

Directive:
1. PED Pressure Equipment Directive 97/23/EC + Functional Safety IEC 61508 SIL 3
Level electrode type:
- NRG 16-50
- NRG 17-50
- NRG 19-50
- NRG 111-50
- NRG 16-36

2. VdTüV Bulletin“Wasserstand 100”(= Water Level 100)
Level electrode type:
- NRG 16-50
- NRG 17-50
- NRG 19-50
- NRG 111-50
- NRG 16-36
- NRG 16-11
- NRG 17-11
- NRG 19-11
- NRG 111-11

3. Marine applications
Level electrode type:
- NRG 16-50S
- NRG 16-11S
- NRG 16-38S
- NRG 16-39S