AVR - Automatic Voltage Regulator - Exact Generic Replacement - 2 Year Warranty! Materia: Metal, Plastic Color: Black Power Input: AC 80-140V (50 / 60Hz) Maximum output: DC 90V / 6A / 10S Frequency compensation: built-in engine speed decline in output voltage along with the decline of the frequency protection circuit Detection voltage input: AC 115V Remaining minimum excitation voltage: ≥ 66V / 25HZ Voltage regulation rate: ≤ ± 1% External voltage trimming 1K / 2W potentiometer ± 10% Size: 15 x 7 x 5cm Applications: Alternators LSA 42.2, 43.2, 44.2, 46.2, 47.2. Compatible with the SHUNT excitation system. The R250 is in Compliance with: IEC, VDE, NEMA, BS, CSA, UL508 CE low voltage. Features: Voltage regulation +/- 0.5% at steady stateand constant speed. Phase to neutral voltage sensing. The regulation quality is independantof load applied. Optimum management of impact loadsusing micro-processor technology. Suitable for high levels of vibration and harsh environments AVR R250 for leroy somer generator,leroy somer avr R250, The R250 is an analogic Automatic Voltage Regulator with transistor. Rapid response time(500 ms) for a transient voltage variation amplitude of ± 20%. Voltage setting P1. Stability setting P2. Supply protected with an 8 A fuse, slow action (supports10 A for 10 s). U/F Fonction and LAM Operating at 50 Hz: (U/F gradient) Operating at 60 Hz: (U/F gradient) Specific operating R250 A.V.R. Option Gradual voltage return function Notes: 1. With 4% engune governing 2. Applies to Mod status F onwards.Generator de-rate may apply.Check with factory. 3. Factor set,semi-sealed,jumper selectable. 4. Non condensing. Package includes: 1 x Automatic voltage regulator