Leroy Somer AVR R150 – Automatic Voltage Regulator

The Leroy Somer R150 is a compact and efficient Automatic Voltage Regulator (AVR) designed for small alternators operating with a SHUNT excitation system. It provides reliable voltage control and smooth generator operation, ensuring stable output even under varying load and temperature conditions. Built for durability and ease of use, the R150 is ideal for portable generators, standby units, and light industrial power applications.

Key Specifications:

• Voltage Regulation: ±1% steady-state accuracy

• Excitation Current: Up to 4 A continuous

• Sensing Voltage Range: 170 V – 260 V AC (50/60 Hz)

• Response Time: <500 ms typical

• Operating Temperature: –40 °C to +70 °C

• Excitation System: SHUNT type

• Protection: Integrated over-excitation and thermal protection

• Compatibility: Suitable for Leroy Somer TAL and LSA series alternators, and similar generator models