Alternator Mecc Alte 150 KVA ECP34-1L4C Three Phase 1500 RPM

Mecc Alte ECP34-1L/4C Alternator: 150 kVA, three-phase, 1,500 RPM

The ECP34-1L/4C is the highest-power model in the mid-range of Mecc Alte's ECP34 4C three-phase series at 1,500 RPM, featuring M2K AVR electronic regulation.

Self-regulation is achieved through an M2K digital electronic regulator, powered by an auxiliary winding (MAUX) that ensures a nearly constant supply under any operating conditions, with an accuracy of ±0.5%. The windings have a 2/3 winding pitch, designed to eliminate third-harmonics in the voltage waveform and prevent excessive neutral currents under certain parallel operating conditions.

Like the entire product line starting with the ECP28, it includes an aluminum damping cage for greater stability against load transients.

Technical characteristics

• Part Number: ECP34-1L/4C
• Rated power: 150 kVA (400 V star-delta connection, H-125/40 rating)
• Output voltage: 400/230 V three-phase (configurable from 380 V to 440 V depending on the type of connection)
• Frequency: 50 Hz (also available at 60 Hz)
• Speed: 1,500 RPM
• Poles: 4 / Phases: 3 / Wires: 12, reconnectable
• Controller: M2K, digital
• Excitation: MAUX auxiliary winding
• Regulation accuracy: ±0.5%
• Harmonic reduction: 2/3-step winding
• Shock-absorbing cage: yes, aluminum
• Insulation class: H / Protection rating: IP23
• Permissible overload: greater than 300% for 20 seconds
• Bearings: 6311.2RS (NDE) / 6314.2RS (DE)
• Maximum overspeed: 2,250 RPM
• Reference elevation: 0–1,000 m
• Balanced: in accordance with ISO 1940-1
• Weight (double bearing): 491 kg
• Dimensions (double bearing): A 870.5 mm / B 769 mm / C 474 mm
• Country of manufacture: Italy

Standards: CEI 2-3, IEC 34-1, EN 60034-1, VDE 0530, BS 4999-5000, NF 51.111, NEMA MG 1-2011, ISO 8528-3, CAN/CSA-C22.2 No. 14-95/No.No. 100-95

Available coupling options
B14, open shaft, for pulley-and-belt mounting, on motors without a SAE-compatible disc coupling.
MD35, SAE Disc, solid disc coupling, available for this model in a wide range of SAE 1 through SAE 6 hubs and diameters from 6 1/2″ to 14″, depending on the hub. The «None» option is also available if a disc is not required.
The coupling diagram specific to this model and the complete technical guide are available for download in the "Manuals" section of this product page.

What type of coupling do I need?
If your engine has an SAE flywheel and housing, the MD35 disc coupling is the direct option: you just need to confirm the housing size and the corresponding disc diameter. If your engine does not have a compatible SAE coupling, the B14 free-shaft kit allows you to mount the alternator using a pulley and belt. If you have any questions, contact us at with the exact engine model before placing your order.