^ZVBL
R430
Description
Legacy analog (service).
Did you know
- Leroy-Somer, a French company established in 1919, designs and manufactures rotating machinery, including alternators and motors. Nidec acquired Leroy-Somer, and the company continues to produce a wide range of alternators and associated electronic controllers.
- The R430 is part of a series of Automatic Voltage Regulators (AVRs) offered by Leroy-Somer (Nidec), which includes models like the R230, R250, R438, R448, R449, and R450.
- Leroy-Somer AVRs are designed to ensure stable and quality voltage output, protecting generators and connected equipment. They are known for high performance, reliability, and long service life, often featuring functions like U/F control and Load Acceptance Module (LAM) for handling sudden overloads.
| Model | Excitation System | Sensing Input Voltage | Voltage Regulation |
|---|---|---|---|
| R430 | AREP or PMG | 95-140V (50-60Hz) or 170-260V (50-60Hz) or 340-520V (50/60Hz) | +/- 0.5% |
| R438 | AREP or PMG | 95-140V (50-60Hz) or 170-260V (50-60Hz) or 340-520V (50/60Hz) | +/- 0.5% |
| R449 | Shunt, AREP or PMG | 120V or 240V | Not specified |
| R450M | Single-phase Input Power | 190-264V AC single-phase, 50-60Hz | Not specified |
Competitive Models
^ZVAF SX421
Earlier shunt-excited variant, still serviced on older sets.
^ZVCX DSEA106
Original DSEA106 (pre-MKII, legacy service).
^ZVEF SE500
Higher-capacity analog AVR.
^ZVHA EA16A
Budget analog AVR, common on mid-tier Asian-built gensets.
^ZVGH UNITROL 1000
Legacy compact digital excitation (service).
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Code map
^Z V B L │ │ │ └── Model: R430 │ │ └───── Make: Leroy-Somer (Nidec) │ └──────── Equipment: Automatic Voltage Regulator └─────────── System: Automation Spares