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Frame 355L/A/B 
Frame Material Cast Iron 
Output 315 kW 
Frequency 50 Hz 
Efficiency (100% load) 95.8 
Power factor (100% load) 0.85 
Rated speed 989 rpm 
Slip 1.10 % 
Rated voltage 400 V 
Rated current 558 A 
L. R. Amperes 3515 A 
LRC 6.3 
No load current 208 A 
Rated torque 310 kgfm 
Locked rotor torque 130 % 
Breakdown torque 250 % 
Locked rotor time 46s (cold) 26s (hot) 
Moment of inertia (J) 14.3 kgm² 
Insulation Class
Service factor 1.00 
Duty Cycle S1 
Starting Method Direct On Line 
Ambient temperature -20°C to +40°C 
Altitude 1000 m.a.s.l. 
Degree of Protection IP55 
Enclosure IC411 - TEFC 
Mounting B3R(E) 
Rotation¹ Both (CW and CCW) 
Noise level² 70.0 dB(A) 
Approx. weight³ 2571 kg 
Impregnation Method Constant Resin Flow 
Regreasing System At Drive end and Non-drive end 
Space Heater Voltage 110-127/200-240 V 
Main terminal box hole 2xM80x2 
Accessories Terminal Box With 
Shaft Locking Device With 
Drain Rubber, automatic 
Shaft Material SAE 4140 Carbon Steel 
Painting RAL 5009 214P (ISO 12944 - C4) 
Grounding Lugs Double 
Fan Cover material Cast Iron 
Tropicalized Painting Without 
Winding thermal protection PT100 - 3 wires 2 per phase  
Bearing thermal protection PT100 - 3 wires 1 on DE bearing 
Flange Without 
Bearing type 6322 C3 
NDE bearing 6319 C3