Wilo HC 20.1 E3 Series - Operation with Frequency Converter; Operation in an Explosive Atmosphere; Rating Plate

Product description en
Installation and operating instructions Wilo Motor HC 20.1 + EMU FA, Rexa SUPRA, Rexa SOLID 13
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
HC 20.1 HC 20.1 ...-E3
ATEX approval
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
MFY
Date of manufacture*
Q
N
Volume flow duty point
Q
max
Max. volume flow
H
N
Delivery head duty point
H
max
Max. delivery head
H
min
Min. delivery head
n
Speed
T
Max. fluid temperature
IP
Protection class
I
Rated current
I
ST
Starting current
I
SF
Rated current at service factor
P
1
Power consumption
P
2
Rated power