Ex-
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Direct driven axial fans explosion proof
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Electric wiring must be in accordance with technical connection regulations and
local regulations and national electric codes as per enclosed wiring diagram in the
terminal box or on the casing.
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Ex- proof fans are supplied with 1m cable (from the casing) as a standart
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Connection according to the wiring casing (data plate on fan casing)
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Insert cable according to rules in Ex junction box ( Accessories) and seal it
(possibly „Water bag“)
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Connect PTC for motor protection properly to a PTB-tested tripping device
according to PTB 3.53 PTC/A
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Connect equipotential bording system accordingly
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Use only Ex-terminal boxes and appropriate
threaded glands!
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The motor protection through PTC temperature
sensors records all anomaly operating conditions
and outside influences and disconnects the motor
from the mains supply in case of any disturbance.
Do not connect PTC to mains supply!
Standart motor protection switches must not be
used!
A reset locking device has to be connected at the
side of the main connector.
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