R438 AVR auto voltage regulator engine parts 1.In stock 2.Passing ISO9001:2000 3.Fast delivery 4.strict quality control Product Description for R438 AVR auto voltage regulator R438 AVR-For LEROY SOMER LSA 42.2, LSA 43.2, LSA 44.2 alternators with AREP excitation.- Standard power supply: AREP or PMG.- Rated overload current: 8 A - 10A- Electronic protection (overload, short-circuit on opening of ...