R448 Automatic Voltage Regulator (AVR)

The R448 AVR ensures precise voltage regulation for Leroy Somer generators, supporting SHUNT, AREP, or PMG excitation.

Key Features:

• Input Voltage: 70-140V AC (PMG or auxiliary winding)
• Voltage Range: 90-480V AC
• Max Output: 10A DC at 125V
• Regulation Accuracy: ±0.5%
• Built-in low-speed & over-excitation protection
• Load Acceptance Module (LAM)

Compatibility:
Fits LSA 42.2, 43.2, 44.2, 46.2, 47.2, 49.1, and LSA 50.2 alternators.

Reliable and efficient for stable generator performance.