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13.3.4
Electrical connection
Motor compartment/sealing chamber
Pre-chamber (external pencil electrode)
ATEX approval
Motor winding: Temperature limiter
Motor winding: Temperature controller and lim-
iter
FM/CSA-Ex approval
Motor winding: Temperature limiter
Motor winding: Temperature controller and lim-
iter
48
Appendix
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, Division
2 is also permitted.
CSA Ex approval
The mixers are suitable for operation in potentially explosive atmospheres:
ƒ
Protection class: Explosion-proof
ƒ
Category: Class 1Division 1
DANGER
Electrocution hazard!
Improper conduct when carrying out electrical work causes death due to electric shock!
Electrical work must be carried out by a qualified electrician in accordance with local reg-
ulations.
ƒ
Always connect the mixer to an electrical outlet outside the explosive area. If the con-
nection must be made within the explosive area, then the connection must be carried out
in an Ex-rated housing (ignition protection class according to DIN EN 60079-0)! Non-
observance may lead to a risk of fatal injury due to explosion! Connection must always be
carried out by a qualified electrician.
ƒ
All monitoring devices outside the "spark-proof areas" must be connected via an intrin-
sically safe circuit (e.g. Ex-i relay XR-4...).
ƒ
The voltage tolerance may not be higher than max. ±10 %.
Overview of possible monitoring devices:
−
−
−
o
o
o
o
o
o
•
•
•
•
•
•
o
o
o
Legend
− = not available/possible, o = optional, • = standard
−
−
−
o
o
o
o
o
o
•
•
•
•
•
•
o
o
o
−
−
o
o
o
o
•
•
•
•
o
o
WILO SE 2021-05
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