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Tolerances Following tolerances are admitted according to DIN EN 60034-1/02.99. These tolerances are permissible for the values assured for three-phase asynchronous motors, taking the necessary manufacturing tolerances and material variations of the used raw materials into account. The standard contains the following notes to that: 1. A guarantee for all or any of the values shown in the table ist not mandatory. In tenders, the guaranteed values for which permissible deviations should apply must be expressly specified. The permissible variations must correspond to those stated in the table. 2. There is pointed to the distinctions concerning the definition „Guarantee“. In some countries, distinction is drawn between guaranteed values and typical or declared values. 3. If the permissible deviation applies only in one direction, then the value in other direction is not limited. Tolerances of the design values Efficiency (with indirect calculation) -0,15 (1-h) up to PN ≤ 50 kW -0,1 (1-η) up to P N > 50 kW Power faktor 1-cosϕ at least 0,02 6 at most 0,07 Slip + 20 % up to P N ≥ 1kW (at rated-load operating temperature) + 30 % up to P N < 1kW Starting current + 20 % (in the planned starting circuit) without limiting downwards Starting torque - 15 % and + 25 % Pull-up torque - 15 % Pull-out torque - 10 % (with the application of this tolerance M K /M at least. 1,6) Moment of inertia + 10 % Noise intensity (measurement area sound pressure level) + 3 dB (A) Tolerances of the fixing dimensions Dimensional short sign according to DIN Meaning of the dimension Fit or tolerance a Spacing of housing foot fixing holes in axial direction + 1 mm b Spacing of housing foot fixing holes + 1 mm across the axial direction e1 Pitch circle diameter of the attachment flange + 0,8 mm a1 Diameter or width across corner of the flange + 1 % g Largest width of the motor + 2 % f (without terminal box) k Overall length of the motor + 1 % k1 p Overall height + 2 % (lower edge foot, housing or flange up to highest point of the motor) s Diameter of the fixing holes of the foot or of the flange + 3 % s1 w1 Centre of the first fixing hole up to shaft end shoulder + 3 mm w2 b1 Diameter of the centering shoulder of the attachment flange up to 230 j6 from 250 h6 d Diameter of the shaft end up to Ø 48 k6 d1 from Ø 55 m6 h Shaft height (lower edge foot up to centre of shaft end) up to 250-0,5 higher than 250-1 u Width of the key h9 u1 t Lower edge of shaft end up to upper edge of key + 0,2 mm t1 Motor weight - 5 bis + 10 % 6
Mechanical design Types of construction Basic types of construction can be used in all derived types of construction. Exceptions: 1) On inquiry 2) Only available in the types of construction 56 - 160 3) This type of construction is to be ordered directly because of additional water return hole in the flange end shield 7
Page 1 and 2: Three-phase asynchronous motors wit
Page 3 and 4: Technical explications Squirrel-cag
Page 5 and 6: 3
Page 7: Standards and specifications The mo
Page 11 and 12: All rotors are dynamically balanced
Page 13 and 14: Installation and electric connectio
Page 15 and 16: Motor selection data Design point 4
Page 23 and 24: Motor selection data Design voltage
Page 25 and 26: Motor selection data Design voltage
Page 27 and 28: Constructive selection data Bearing
Page 33 and 34: Constructive selection data Dimensi
Page 35 and 36: Constructive selection data Termina
Page 51 and 52: Constructive selection data Dimensi
Page 55: We get things moving VEM / 04-042 E

for Explosive Atmosphere

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