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- Description
- Download material
- Code map
- Contribute
- Competitive Models
- Manufacturer
- Send enquiry
- Vessels
- Spares
- Vendors
- Did you know
- Maintenance Schedule
Description
Common aftermarket replacement AVR.
Did you know
- The Leroy-Somer R448 Automatic Voltage Regulator (AVR) is a digital control unit designed to stabilize output voltage in synchronous alternators. It was available as early as 2005, as indicated by copyright dates on its installation and maintenance manual.
- The R448 is a robust AVR within the Leroy-Somer range, compatible with SHUNT, AREP, or PMG excitation systems. It has been superseded by the R450 model.
- The R448 is chosen for its ability to maintain stable voltage even with sudden load changes, crucial for modern loads with sensitive electronics. It offers precise sensing with practical on-site adjustability via accessible potentiometers.
| Model | Voltage Regulation Accuracy | Rated Overload Current | Excitation System Compatibility | LAM Function |
|---|---|---|---|---|
| R448 | ±0.5% | 10A for 10s | SHUNT, AREP, PMG | Integrated |
| R438 | ±0.5% | 8A for 10s | SHUNT, AREP, PMG | Integrated |
| R449 | ±0.5% | 10A for 10s | SHUNT, AREP, PMG | Integrated |
Competitive Models
^ZVCX DSEA106
Original DSEA106 (pre-MKII, legacy service).
^ZVEF SE500
Higher-capacity analog AVR.
^ZVAF SX421
Earlier shunt-excited variant, still serviced on older sets.
^ZVCU DSE0700 MKII
Pocket-size genset control.
^ZVCT DSE8510 MKII
Legacy power management (service).
Send enquiry
Send an enquiry to the manufacturer of ^ZVBG R448. One broadcast per day.
Contribute or correct
Spotted a missing or incorrect entry? Let the maintainers know. Zulu Code is open under CC BY 4.0 — every correction strengthens the standard for the whole industry.
Code map
^Z V B G │ │ │ └── Model: R448 │ │ └───── Make: Leroy-Somer (Nidec) │ └──────── Equipment: Automatic Voltage Regulator └─────────── System: Automation Spares