R438 AVR | Leroy Somer Automatic Voltage Regulator

The LEROY SOMER R438 is compatible with AREP or PMG excitation systems, specifically designed for use with LSA42.3, LSA43.2, LSA44.3, and LSA44.2 Leroy Somer models. For shunt applications, we recommend the R250 or R220, ensuring precise regulation control. Despite being one of the oldest regulators, the R438 remains one of Leroy Somer's finest offerings. With its exceptional regulation of -/+1.0, it reliably maintains voltage stability even under the most demanding industrial load conditions.

Features include:

• Part Number: R438
• Compatible with: Leroy Somer Generators
• Detection input: Voltage range of 95-480V AC
• Power supply input: Three-phase voltage range of 40-150V AC for this automatic voltage regulator Rigorously tested at 100%, offering direct replacement and straightforward installation While not an original part, it serves as a reliable replacement that functions effectively for your needs.

Technical Details