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powerMELA®

Powerful permanent-field synchronous motors

Experience and spirit of innovation combined in the mobile drives concept powerMELA® - electric power and drive tech for mobile work machines, ships and commercial vehicle.

powerMELA® is a compact drive solution for hybrid and electric mobile machines and vehicles. The proven system is already being used in many different applications and was developed by Baumüller together with Sensor-Technik Wiedemann GmbH.

powerMELA®

Long-term cost-efficient
Optimised performance
Highest power density by additional reluctance torque and direct conductor cooling

Functionality of the powerMELA® system

The powerMELA® drive concept consists of a permanently excited synchronous reluctance motor and an integrated four-quadrant frequency converter. In the hybrid concept with powerMELA®, a DC voltage is generated in the vehicle electrical system by a combustion engine using a combination of generator and frequency converter. With all-electric solutions, operation is exclusively by battery current. The electric motors are connected to the on-board power supply and drive the vehicle.

Advantages of the powerMELA® system

Reduced maintenance effort

Electric drives instead of hydraulic and rigid mechanical solutions
Electric drives with high efficiency

Fuel savings of up to 30 %

Internal combustion engine at optimum operating point
Operating states largely decoupled
High power auxiliary units electrically operated

Good EMW properties

Additional insulation of the stator to the housing
Protection class II of the drive system in the IT network
No additional protective covers and filter measures necessary

Environmental friendliness

Direct conductor cooling using rapidly biodegradable transformer insulating oil

powerMELA®-Series

The powerMELA®-C series is a family of permanent magnet synchronous electric machines with integrated power inverters. They were developed specifically for mobile working machines, for use in both the main drive and auxiliary drives. The machines are liquid cooled and designed for 4 quadrant operation. The desired values for torque, voltage and speed control can be set over CAN bus.

eTruck - E-Mobility for functional vehicles & agricultural machines

Flexibility Through Decentralized Drive Concepts

Technical data

metric / imperial



Size (rotor height/power)	[mm]/[kW]	132/50	132	132
Phases		1 x 3	1 x 3	2 x 3
Earthing System		IT	IT	IT	1)
Protection class		IP6K9K	IP6K9K	IP6K9K	2)
Construction		flange	flange	flange

metric / imperial

Operation data

Nominal power (motor shaft)	[kW]	50	80	140	3)
Maximum power	[kW]	75	88	154	4)
Nominal voltage DC	[V]	650	650	650	5)
Operating voltage range DC	[V]	400...695	400	400
Temporary overvoltage DC	[V]	< 730	< 730	< 730	6)
Nominal current DC	[A]	85	146	256	7)
Nominal torque	[Nm]	160	250	445
Maximum torque	[Nm]	245	338	610
Nominal speed	[min-1]	3000	3000	3000
Maximum speed	[min-1]	6000	6000	6000
Voltage supply DC	[V]	9 ... 32	9 ... 32	9 ... 32

metric / imperial

Mechanical data

Length without shaft	L1 [mm]	379	379	513
Length with shaft	L2 [mm]	450	450	584	8)
Shaft diameter	d1 [mm]	35	35	35	9)
Weight	[kg]	90	90	147
Rotor inertia	[kgm2]	0.0493	0.0493	0.08
Max. cooling fluid temperature	[°C]	60	60	60	10)
Cooling connector	amount	2	2	2	11)
Power connector	amount	2	2	2	12)
Communication connector		19 pole	19 pole	19 pole	13)
Maximum impulse withstand voltage	[V]	4000	4000	4000
Maximum altitude of use	m a.s.l.	5000	5000	5000