Wilo FKT 50.1 - Operating Modes; Operation with Frequency Converter; Operation in an Explosive Atmosphere; Rating Plate

Product description en
Installation and operating instructions Wilo Motor FKT 50.1, 57, 63.1, 63.2 + EMU FA 13
4.3 Operating modes
Operating mode S1: Continuous duty
The pump can operate continuously at the rated load without exceeding the permiss-
ible temperature.
Operating mode: Non-immersed operation
The “non-immersed operation” operating mode describes the possibility of the motor
emerging during the drainage pumping sequence. This allows a further lowering of the
water level as far as the upper edge of the hydraulics. Observe the following points dur-
ing non-immersed operation:
ƒ Operating mode: Continuous duty (S1).
ƒ Max. fluid and ambient temperature: The max. ambient temperature corresponds to
the max. fluid temperature shown on the rating plate.
4.4 Operation with frequency con-
verter
Operation on the frequency converter is permitted. Refer to the appendix for the relev-
ant requirements!
4.5 Operation in an explosive atmo-
sphere
FKT 50.1 FKT 57 ...-E3 FKT 63.1 FKT 63.1 ...-E3 FKT 63.2 ...-E3
ATEX approval
o o o o o
FM approval
o − − − −
CSA-Ex approval
− − − − −
Key: − = not available/possible, o = optional, • = as standard
For use in explosive atmospheres, the pump must be marked as follows on the rating
plate:
ƒ “Ex” symbol of the corresponding approval
ƒ Ex classification
For the relevant requirements, refer to the explosion protection chapter in the ap-
pendix of these installation and operating instructions!
ATEX approval
The pumps are suitable for operation in potentially explosive atmospheres:
ƒ Device group: II
ƒ Category: 2, zone 1 and zone 2
These pumps must not be used in zone 0!
FM approval
The pumps are suitable for operation in potentially explosive atmospheres:
ƒ Protection class: Explosionproof
ƒ Category: Class I, Division 1
Notice: If the cabling is carried out according to Division 1, installation in Class I, Di-
vision 2 is also permitted.
4.6 Rating plate
The following is an overview of the abbreviations and associated data on the rating
plate:
Rating plate
designation
Value
P-Typ
Pump type
M-Typ
Motor type
S/N
Serial number
Art.-No.
Article number