DANSK DS/EN 60034-12 PDF

This International standard specifies the parameter for designs of starting performance of single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034-1 That: – have a rated voltages up to 1 000 V; – are intended for direct-on-line or star-delta starting; – are rated on the basis of duty type S1 – are constructed to any degree of protection. The standard also applies to dual voltage motors provided that the flux saturation level is the same for both voltages and to motors having type of protection 'e – increased safety' with temperature classes T1 to T3 complying with IEC 60079-0 and IEC 60079-7.