Operating Modes; Operation With Frequency Converter; Operation In An Explosive Atmosphere; Technical Data - Wilo Rexa CUT GI Instrucciones De Instalación Y Funcionamiento

4.3

Operating modes

4.4 Operation with frequency con-
verter
4.5 Operation in an explosive atmos-
phere
4.6

Technical data

Installation and operating instructions Wilo-Rexa CUT GI
Product description
External monitoring of the sealing chamber
The sealing chamber can be equipped with an external pencil electrode. The electrode regis-
ters fluid ingress through the mechanical seal on the fluid side. An alarm or deactivation of
the pump can therefore take place through the pump control.
Operating mode S1: Continuous duty
The pump can operate continuously at the rated load without exceeding the permissible
temperature.
Operating mode S2: Short-time duty
The maximum operating period is specified in minutes, e.g. S2-15. The pause must last until
the machine temperature is no more than 2 K away from the temperature of the coolant.
Operating mode S3: Intermittent periodic duty
This operating mode defines a switching cycle at the ratio of operating time and standstill
time. The given value (e.g. S3 25 %) refers to the operation time. The switching cycle has a
duration of 10 min.
If two values are given (e.g. S3 25 %/120 s), the first value refers to the operation time. The
second value indicates the maximum time of the switching cycle.
Operation on a frequency converter is not permissible.
Operation in an explosive atmosphere is not permissible.
General
Mains connection [V/F]
Power consumption [P ]
1
Rated power [P ]
2
Maximum delivery head [H]
Max. volume flow [Q]
Activation type [AT]
Fluid temperature [t]
Pressure connection
Protection class
Insulation class [Cl.]
Speed [n]
Maximum switching frequency
Maximum immersion depth [8]
Cable length (standard version)
Explosion protection
Operating modes
Immersed [OTs]
Non-immersed [OTe]
* If the required cooling of the motor is ensured before a re-activation, the operating mode
S3 25 % is permissible! To ensure the required cooling, the motor must be completely im-
mersed for at least 1 minute!
see rating plate
see rating plate
see rating plate
see rating plate
see rating plate
see rating plate
3...40 °C (37...104 °F)
ANSI B16.1, Size 1.5, Class 125
IP68 (permanently immersed)
F
see rating plate
30/h
20 m (66 ft)
10 m (33 ft)
-
S1
S2-15, S3 10 %*
en-US
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