3 ATEX Explosion hazard areas
B 1091 en-1221
39
EN 60079-0 and IEC 60079-0. The cable and blind plugs must be suitable for temperatures of at least
80°C.
In order to connect cables or carry out other works, the motor must not be opened in explosive
atmospheres. The voltage must always be switched off and secured against switch-on before opening.
The motors are equipped with threads for cable glands according to the following overview.
Assignment of cable gland to motor size
Standard motor cable glands
Braking motor cable glands
Type
Quantity Threads Quantity Threads Quantity
Threads
Quantity Threads Quantity Threads Quantity Threads
63
2
M20x1.5
4
M20x1.5
2
M12x1.5
71
2
M20x1.5
4
M20x1.5
2
M12x1.5
80
2
M25x1.5
4
M25x1.5
2
M12x1.5
90
2
M25x1.5
4
M25x1.5
2
M12x1.5
100
2
M32x1.5
4
M32x1.5
2
M12x1.5
112
2
M32x1.5
4
M32x1.5
2
M12x1.5
132
2
M32x1.5
4
M32x1.5
2
M12x1.5
2
M16x1.5
160/
180/..X
2
M40x1.5
2
M12x1.5
2
M16x1.5
2
M40x1.5
2
M12x1.5
2
M16x1.5
180/
200/..X
2
M40x1.5
2
M12x1.5
2
M16x1.5
2
M40x1.5
2
M12x1.5
2
M16x1.5
225
2
M50x1.5
2
M12x1.5
2
M16x1.5
2
M50x1.5
2
M12x1.5
2
M16x1.5
250 WP
2
M63x1.5
2
M12x1.5
2
M16x1.5
2
M63x1.5
2
M12x1.5
2
M16x1.5
If the motor is supplied with a certified cable
gland, the cable gland's lock nuts must be
tightened with a torque according to the
following table.
C
abl
e
ent
ry
Tightening torques for lock nut
Cable gland
M20x1.5 M25x1.5
M32x1.5
M40x1.5
M50x1.5
M63x1.5
Tightening torque (Nm)
3.0
6.0
12.0
14.0
20.0
25.0
Pos: 104 /Anleitungen/Motoren/B1091 Drehstrommotoren/3. ATEX/Zulässiger Umgebungstemperaturbereich [22] @ 67\mod_1613486622150_388.docx @ 2738896 @ 3 @ 1
3.3.5 Permissible ambient temperature range
For all motors, the permissible ambient temperature range is -20°C...+40°C. For IE1/IE2 motors for
operation in Zones 21 and 22, an extended ambient temperature range from -20°C...+
60
°C is
permissible. In this case, the rated power must be reduced to
72
% of the value stated in the
catalogue.
If the maximum ambient temperature is b40°C and +
60
°C, the power output should be
inversely linearly interpolated between
100
% and
72
%. Thermal motor protection by PTC resistor
temperature sensors is mandatory. The motor connection cables and the cable glands must be
suitable for temperatures of at least 80°C.
Summary of Contents for B1091
Page 1: ...B 1091 en Motors Manual with installation instructions...
Page 5: ...Publisher B 1091 en 1221 5...
Page 55: ...6 Declarations of Conformity B 1091 en 1221 55 6 Declarations of Conformity...
Page 56: ...Motors Manual with installation instructions 56 B 1091 en 1221...
Page 57: ...6 Declarations of Conformity B 1091 en 1221 57...
Page 60: ...6051302 1221...
