The E000-24210/1P is a Genuine OEM SX421 Complete AVR for STAMFORD generators. Full automatic voltage regulator assembly for Cummins Generator Technologies alternators. The SX421 is a state-of-the-art Automatic Voltage Regulator from STAMFORD for brushless alternator systems. It is designed for medium-frame Stamford alternators in the HC, PI, and S series with self-excited AVR configurations.

Key features

• Self-excited operation with no PMG required
• Soft-start ramp for controlled voltage build-up
• Under-Frequency Roll-Off (UFRO) protection
• Stability, voltage, droop, and frequency adjustments
• Compatible with parallel operation when paired with current transformers

Typical applications

Industrial generator sets from 50 kVA to 500 kVA, mobile power generation, prime and standby power, cogeneration / CHP systems, marine and offshore power, and rental fleet generators.