The functional unit consisting of the operating & display unit URB 50 and the level controller NRR 2-52 / NRR 2-53 in conjunction with level electrodes NRG 2.-.. and level transmitter NRGT 26-1 is used as limit switch and water level controller, for
instance in steam boilers, (pressurized) hot-water installations as well as condensate and feedwater tanks.
The functional unit consisting of the URB 50 and the level controller NRR 2-5.. can be used with level electrodes NRG 21-..
and NRG 26-21 as well as the level transmitter NRGT 26-1.
"Gestra NRR2-53-URB50" More Information
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