nord 6051302, Operating And Assembly Instruction Manual

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Table of Contents
B 1091 en-2722 59
AVERTISSEMENT
RISQUE D'EXPLOSION
LA SUBSTITUTION DE COMPOSANTS PEUT RENDRE CE MATERIEL
INACCEPTABLE POUR LES EMPLACEMENTS DE CLASSE I DIVISION 2/ CLASSE
II DIVISION 2
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For these motors, the following information specifically or complimentarily apply.
The motors are suitable for use in Class II Div.2 and may be used at an ambient temperature from -
20 °C to +40 °C.
Type suffix: IID2
e.g.: 80 LP/4 IID2 CUS TF
Labelling: Class II Div.2 Group F,
G T3B 165°C
Explosive dust 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. It is necessary that the persons responsible are qualified
according to national and local regulations.
It is necessary that the persons responsible for the use of these motors and frequency inverters in
explosion hazard areas are trained in their correct use.
These explosion-protected electrical machines comply with the standards CSA C.22.2 N°25-1966, CSA
C.22.2 N°100-14, UL Subject 1836, UL 1004-1 and are suitable for the Class II Div.2 area.
The degree of explosion hazards determines the zone classification. The operator is responsible for the
classification of the zones. The use of motors which are not certified for explosion hazard areas is
prohibited in explosion hazard areas.
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3.8.1 Terminal box cover seals
The terminal box cover gasket is captively mounted on the terminal box cover. Please only use an
original seal when replacing the seal.
If the terminal box is opened during installation, maintenance, repair, troubleshooting or overhaul, the
terminal box cover must be re-fitted after the work is complete. There must be no dirt on the surface of
the seal or the sealing surface of the terminal box frame.
The screws for the terminal box cover must be tightened with a torque according to the list below.
Tightening torques for terminal box cover screws
Thread diameter M4 M5 M6 M8
Tightening torque (Nm) 0.8 - 1.2 1.2 - 1.8 1.5 - 2.5 3.0 – 5.0