M Line motors are manufactured in different configurations in reference to cooling methods and degree of protection, allowing the machine to be designed as suitable as possible to meet operation and environment requirements.

Motors in frame sizes IEC 280 to 450 are manufactured in cast iron, while frame sizes IEC 500 and above are fabricated in welded steel plates.


Standard Features

Sinusoidal power supply of 220 to 13,800 V
Motors manufactured in 2 to 12 poles
Cast iron frames 315 to 450 and welded steel plates for frame 500 to 1800
Cooling methods used:
- Open self-ventilated;
- Self-ventilated by ducts, air inlet and outlet;
- Forced ventilated, air inlet and outlet by ducts;
- Forced ventilation, cooling on top of motor;
- Self-ventilated with air-to-air heat exchanger, heat exchanger on top of motor;
- Self-ventilated with air-to-air heat exchanger, heat exchanger around the stator;
- Forced ventilation in the air internal and external circuit, air-to-air heat exchanger;
- Air-to-water heat exchanger;
- Air-to-water heat exchanger, forced ventilation in the air internal circuit.
Mounting: B3
Degree of Protection: IP23 to IP55
Service duty: (S1)
Class of insulation: F
Service Factor: 1.0
Temperature rise: 80°C
Ambient temperature: 40°C
Altitude: 1000 m
Temperature detector: Pt100, 1 per bearing with 3 wires
Temperature detector: Pt100, 2 per phase with 3 wires
Two accessory terminal boxes, one for signal accessories and the other for those accessories requiring power (space heater)
Single phase space heater
Labyrinth tachonite in grease lubricated bearings
Grease lubricated bearings:
- For 2 pole motors in the following frame sizes:
- Up to frame 400 (inclusive) for 60Hz;
- Up to frame 450 (inclusive) for 50Hz;
- For 4 pole motors in the following frames:
- Up to frame 560 (inclusive) for 60Hz and 50Hz;
- Grease lubricated bearings for 6 pole motors and above;
Sleeve bearings:
- For 2 pole motors in frame 630
- Frame 450 and above for 60Hz
- Frame 500 and above for 50Hz
- For 4 pole motors in frame size 630
Electrically insulated non-drive end bearing for frames 450 and above, when connected directly to the power supply
Painting: Acrylic polyurethane Polyamide epoxy (Final coat: Blue RAL 5007)
Stainless steel nameplate
Grounding lug on the frame and terminal box
Grounding brush on drive end shaft for frame size 450 and above
Stainless steel slip rings
03 connection terminals in the power terminal box for high voltage (with terminal block)
06 loose power connection leads for low voltage (without terminal block)


Optional Features

VFD application
Service Factor: 1.15
Class of insulation: H
Temperature rise: 105°K for class F
Temperature rise: 125°K for class H
Ambient temperature above 40°C (on request)
Altitude above 1000 m (on request)
Mountings: B5, B35, V1, V3, V5, V6, V18, V19, V36
Degree of Protection IPW55 and above
Classified area application: Ex-n, Ex-e, Ex-p
Special balance
Base: rail, sliding base, extended feet, rebuilt feet, anchorage plate
Steel welded terminal box in different sizes, based on internal available space
Power factor correction capacitors
Non-reversion ratchet
Centrifugal switch
Temperature detector: Thermistor (PTC or NTC)
Temperature detector: Thermostat (Bimetallic)
Two energized power terminal boxes
One or more accessory terminal boxes
Shaft: Special dimensions, double shaft end, tapered, hollow, special steel
Sleeve bearing
Oil lubricated bearing
Special bearing (overdesigned) for axial or radial thrust
Special painting
Terminal block for low voltage
Cable gland in the terminal box entrance
Protection against voltage surge: Lighting arrestors and Capacitors
Aluminum, copper or brass rotor
Vibration detector
Noise suppressor in the air inlet and outlet
Encoder
Tachogenerator
CT for differential and integral protection
Bearing thermometer with gauge with/without contacts
Signal transducer
Independent hydraulic oil circulation system for sleeve bearing
Electrically insulated non-drive end bearing for all frame sizes with driven by frequency drive
Both bearings are electrically insulated
Grounding brush on drive end bearing for all frames when driven by frequency converter (except for classified area)