Ex Rating; Protection Class - Wilo TR/E 216 Serie Instrucciones De Instalación Y Funcionamiento

13.3

Ex rating

13.3.1 Identification of Ex-rated mixers
13.3.2

Protection class

13.3.3 Intended use
Installation and operating instructions Wilo-EMU TR/TRE 216 ... 326-3
Appendix
Summary
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Min./max. frequency during continuous duty:
–
Asynchronous motors: 30 Hz up to rated frequency (50 Hz or 60 Hz)
–
Permanent magnet motors: 30 Hz up to the stated maximum frequency as per the
rating plate
NOTICE! Higher frequencies are possible following consultation with customer ser-
vice!
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Observe additional measures with regard to EMC regulations (choice of frequency con-
verter, using filters, etc.).
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Do not exceed the rated current or rated speed of the motor.
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Connection for bimetallic strip or PTC sensor.
This section contains further information on the operation of the mixer in an explosive at-
mosphere. All personnel must read this section. This section applies only to Ex-rated mix-
ers!
For use in explosive atmospheres, the mixer must be marked as follows on the rating plate:
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"Ex" symbol for the relevant approval
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Ex classification
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Certification number (depending on the approval)
The certification number, if required by the approval, is printed on the rating plate.
The motor's design version corresponds to the following protection classes:
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Flameproof enclosure (ATEX)
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Explosionproof (FM)
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Flameproof enclosures (CSA-EX)
In order to limit the surface temperature, the motor must be equipped with at least one
temperature limiter (1‑circuit temperature monitoring). A temperature controller (2‑circuit
temperature monitoring) is possible.
ATEX approval
The mixers are suitable for operation in potentially explosive atmospheres:
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Device group: II
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Category: 2, zone 1 and zone 2
Mixers must not be used in zone 0!
FM approval
The mixers are suitable for operation in potentially explosive atmospheres:
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Protection class: Explosionproof
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Category: Class I, Division 1
Notice: If the cabling is carried out according to Division 1, installation in Class I, Division
2 is also permitted.
CSA Ex approval
The mixers are suitable for operation in potentially explosive atmospheres:
ƒ
Protection class: Explosion-proof
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Category: Class 1Division 1
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