" Explosion And Flameproof motor"
DEFINITION
An explosion and flame proof motor
EEx-d is a rotating machine which can
work in an environment with the pres-
ence of gases and/ or explosive or
infiammable fumes without causing in-
ternal damage to the motor.
It is in fact:
Explosion-proof: its housing neither
cracks nor explodes in case of an in-
ward short circuit.Flame-proof: it doesn’ t allow the exit of gases and flame from the motor when the ambient temperature is critical.
Explosion Groups
Our motors have been certified for ex-
plosion groups II A • II B ( some II C)
and reproduce the following identifica-
tion marks:
- GAS: ZONE 1 and 2 II 2G EEx d
IIB ( some in IIC) . The standard EN
50014 and CEI 31.8 issue 459, state the
type of gases and vapours included in
each explosion group. See the list on
the bottom of page.
- DUST: ZONE 21 and 22 II 2D IP66
T 85° C, T 100° C, T 135° C, T 200° C
in accordance with standard EN
50281-1-1
Temperature classes
Our motors are certified for the tem-
perature classes T3 - T4 - T5 ( some T6) .
Main characteristics
- size 56 ÷ 225
- housing and shields in cast iron
- mechanical protection IPW 557
- fan cover protection IP 2x
- the motors are tropicalised
- the cooling fan is in non-sparking
synthetical material up to sizes 132,
metallic upper sizes
- alkilic paint RAL 5010
- screws: nickeled or cadmied
- stainless steel nameplate
- ball bearings type ZZ on both sides.