R250 AVR

R250 Genuine Leroy Somer AVR



The R250 Genuine Leroy Somer AVR for the LSA series of industrial alternators provides excitation current up to 5 A with excellent reliability for SHUNT excitation types.

The R250 Genuine Leroy Somer AVR is also equipped with a Load Acceptance Module (LAM). The R250 is an analogue AVR with transistor-controlled power. It is intended for use with tiny alternators that use a SHUNT excitation. R250 regulates the excitation current in order to keep the alternator’s output voltage stable. R250 is a high-performance voltage regulator that is easy to set up and operate.
It complies with the IEC 60034-1 standard and is UL 508 / CSA certified.

Product Specification

Technology  Analog
 Excitation mode SHUNT, 3-phase and 1-phase
 Rated excitation current  5 A
 Regulation accuracy (+/- %) 0.5 %
 Frequency range 10 – 100 Hz
 Voltage setting range (+/- %) 5 %
 kU/F limitation K = 1
 Loss of sensing voltage
 Over-excitation limitation
 Short circuit current limitation
 Voltage droop
 Parallel operation between alternators
 Load Acceptance Module (LAM)


MNP Electrical is a one stop shop for all your industrial and commercial needs. We supply a wide variety of commercial and industrial spare parts. We have covered all your needs. Reach out to one of our friendly team members to know more about products and services on 0297565632.

Product Specification

Additional information

Weight 1 kg
Dimensions 30 × 30 × 30 cm


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