Description

ESB4-48/120 Phase 9 48VDC 120A Brushless DC Alternator

The ESB4-48/120 is a four-pole, nine-phase brushless DC alternator engineered to supply up to 120 Adc at 48 Vdc (6.7 kW) for critical diesel generator applications. Featuring an integrated rectifier with forced-ventilation, this UL-listed alternator maintains voltage within ±0.5% under S1 duty for reliable performance in telecom, hybrid, and industrial power systems.

• Output: 48 Vdc, 120 Adc (6.7 kW)
• Pole Count: 4 poles, 9 phases
• Regulation: ±0.5% AVR accuracy, 48–59 Vdc range
• Cable Configuration: High-current dual stud terminals
• UL Certified for panel and enclosure integration

As an OEM component, the ESB4-48/120 is widely trusted in Aurora diesel generators. Its compact B3/B14 mounting, rugged brushless design, and compatibility with standard generator enclosures make it ideal for Perkins, Yanmar, Hatz, and other diesel engine packages.