Specifications:
The A5M B5M models offer power up to 1,900 kW and voltages up to 690 V. They are available in frame sizes ranging from 71 to 500 and can be configured with 2, 4, 6, or 8 poles. Cooling options include IC 411 and IC 416, with protection ratings of IP 55, IP 56, and IP 65. The enclosure is Totally Enclosed Fan Cooled (TEFC).

Main Applications:
These motors are primarily used in marine applications such as auxiliaries and Fi-Fi systems, with additional applications for winches.

Construction:
Motors are constructed with cast iron or aluminum housing, depending on the size. The shaft is made of carbon steel with a cylindrical design. The main terminal box is mounted on top and made from cold-rolled formable steels or cast iron.

Cooling System:
The standard cooling system is IC 411, with an option for IC 416 for variable speed applications. The degree of protection is IP 55 as per IEC60034-5.

Certificates and Testing:
The motors come with a Marine Survey Certificate and are certified by the Marine Classification Society.

Stator/Rotor Core:
The stator and rotor cores are laminated and enamel-insulated to minimize eddy-current losses. The rotor can be a solid shaft or welded ribbed shaft, with winding options of pressure die-cast aluminum or copper bar construction.

Bearings:
Bearings are antifriction type, grease or oil lubricated, with a theoretical lifetime exceeding 50,000 hours. Special bearings can be designed for high radial and axial forces.

Impregnation and Insulation System:
The stator and rotor are VPI treated with polyester amide resin. The stator is F class insulated, with H class available on request.

Optional Features:
Options include dual/multiple winding configurations, increased protection degree, encoders, vibration sensors, special frame designs, reinforced winding for VFD operation, and insulated bearings for VFD applications.