Nord Drivesystems B1091, Operating Manual With Installation Instructions

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Motors – Manual with installation instructions
30 B 1091 en-1221
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3.2 Motors with ignition protection class Non Sparking Ex ec
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DANGER!
Explosion hazard
All work must only be carried out with the machine at a standstill and the power to the
system switched off .
Higher temperatures than the maximum permitted surface temperature of the housing may be
present inside the motor. The motor must therefore never be opened in an explosive
atmosphere!
Failure to comply with this may result in the ignition of an explosive atmosphere.
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WARNING
Explosion hazard
Excessively heavy dust deposits must be avoided, as these impair the cooling of the device!
Impairment or obstruction of the flow of cooling air, for example due to partial or large area
coverage of the fan cover or the entry of foreign bodies fall into the fan must be avoided in
order to ensure adequate cooling.
Only cable glands and reducers which are approved for use in explosion hazard areas may be
used.
All cable glands which are not used must be closed with blind screw plugs which are approved
for potentially explosive areas.
Only the original seals may be used.
Failure to comply increases the risk of ignition of an explosive atmosphere.
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The following supplementary or special information applies for these motors.
The motors are suitable for use in Zone 2 and correspond to Device Group II, Category 3G and may
be used at an ambient temperature from -20 °C to +40 °C.
Type suffix: 3G e. g.: 80 L/4 3G TF
Labelling: II 3G Ex ec IIC T3 Gc With indication of the temperature
class
If the motor is attached to a gear unit, the EX labelling of the gear unit must also be observed!
Explosive gas mixtures or dust concentrations may cause severe or fatal injuries in combination with
hot, electrically live and moving components of electrical machines.
The increased danger in explosion hazard areas requires especially strict observance of the general
safety and commissioning information. The persons responsible must be qualified according to the
national and local regulations.
Explosion protected electrical machines with ignition protection class Ex n correspond to the standard
series EN 60034 (VDE 0530), as well as EN 60079-0:2014 and EN 60079-7:2015. The degree of the
explosion hazard determines the zone categorisation. DIN EN 60079, Part 10 A provides information
with regard to this. The operator is responsible for the categorisation of the zones. The use of motors
which are not certified for explosion hazard areas in explosion hazard areas is prohibited.