Spares / Alternators and Spares / Leroy Somer Alternators and Spares / Leroy Somer AVR
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Genuine Leroy Somer R450M automatic voltage regulator (AVR) for the LSA series of industrial alternators provides excitation current up to 6 A with excellent reliability for SHUNT, permanent magnet (PMG) or AREP (auxiliary winding) excitation types.
R450M is Single Phase Sensing with Mate-N-Lock connectors.
Use R450T for 3 Phase Sensing.
Designed to fit LSA40 to LSA50.2 and TAL46 to TAL49 alternators with SHUNT, permanent magnet (PMG) or AREP (auxiliary winding) excitation types.
These are new and GENUINE LEROY SOMER AVRs direct from the factory.
The R450M includes advanced protections such as over-excitation limitation and voltage sensing loss, and also features voltage droop for genset parallel operation. The R450M is also equipped with a Load Acceptance Module (LAM) to handle load impact events.
Technology | Analog |
Excitation mode | SHUNT, AREP, PMG |
Rated excitation current | 6 A |
Regulation accuracy (+/- %) | 0.5 % |
Frequency range | 10 – 100 Hz |
Voltage setting range (+/- %) | 5 % |
kU/F limitation | K = 1&2 |
Loss of sensing voltage | ✓ |
Over-excitation limitation | ✓ |
Short circuit current limitation | ✓ |
Voltage droop | ✓ |
Parallel operation between alternators | ✓ |
Load Acceptance Module (LAM) | ✓ |
Compatible products
* : use R450M with Mate-N-Lock connectors