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- Description
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- Code map
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- Competitive Models
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- Vessels
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- Did you know
Description
Compact analog AVR for LSA marine alternators.
Did you know
- The Leroy-Somer R450M is an analog Automatic Voltage Regulator (AVR) that replaced the older R448 model.
- The R450M is part of Leroy-Somer's analog AVR series, which also includes models like the R230, R250, and R438. It is a variant of the R450, specifically featuring single-phase sensing and Mate-N-Lok connectors, while the R450T offers three-phase sensing.
- The R450M is chosen for its precise voltage regulation of ±0.5% and its versatility, being compatible with SHUNT, AREP, or PMG excitation alternators. It also includes advanced protections like over-excitation limitation, voltage sensing loss safeguards, and a Load Acceptance Module (LAM) for handling load impact events.
| Model | Voltage Regulation | Nominal Excitation Current | Excitation Type | Sensing |
|---|---|---|---|---|
| R450M | ± 0.5% | 6A | SHUNT, AREP, PMG | Single-phase |
| R450T | ± 0.5% | 6A | SHUNT, AREP, PMG | Three-phase |
| R438 | ± 0.5% | 5A | AREP, PMG | Single-phase or Three-phase (via strap) |
Competitive Models
^ZVCX DSEA106
Original DSEA106 (pre-MKII, legacy service).
^ZVEF SE500
Higher-capacity analog AVR.
^ZVCU DSE0700 MKII
Pocket-size genset control.
^ZVAF SX421
Earlier shunt-excited variant, still serviced on older sets.
^ZVCB DSEA109 MKII
Higher-power standalone AVR with external voltage trim input.
Send enquiry
Send an enquiry to the manufacturer of ^ZVBA R450M. One broadcast per day.
Contribute or correct
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Code map
^Z V B A │ │ │ └── Model: R450M │ │ └───── Make: Leroy-Somer (Nidec) │ └──────── Equipment: Automatic Voltage Regulator └─────────── System: Automation Spares