Basler SR4A-2B16B3A Static Voltage Regulator
The Basler SR4A-2B16B3A is a solid‑state static voltage regulator designed for small to medium brushless synchronous generators. This regulator provides automatic voltage regulation (AVR) with high accuracy and fast response, ensuring stable generator output voltage for standby and prime power applications.
The regulator features simple installation and adjustment, with potentiometers for voltage setpoint and stability control. It includes protection against over‑excitation and V/Hz conditions, safeguarding the generator and connected loads. The SR4A‑2B16B3A is built for panel mounting with screw terminals for wiring.
Technical Specifications
Model: SR4A-2B16B3A
Control mode: AVR (automatic voltage regulation)
Voltage sensing: 120/240 V AC (single‑phase)
Field output: Up to 5 A continuous
Regulation accuracy: ±1% of setpoint
Protection: Over‑excitation, V/Hz, loss of sensing
Adjustments: Voltage setpoint, stability
Power supply: Self‑excited from generator sensing
LED indicators: Power, excitation, fault
Operating temperature: -40°C to +70°C
Certifications: CE, UL, RoHS
Functional Features
Precise regulation: Maintains voltage within ±1% of setpoint.
Voltage build‑up: Self‑excitation from residual voltage.
Protection: Prevents over‑excitation and over‑fluxing.
Compact size: Easy installation in control panels.
LED status: Quick visual diagnostics.
Typical Applications
Small diesel gensets: Standby power for residential and commercial.
Portable generators: Mobile power for construction.
Agricultural generators: Power for irrigation.
Installation and Configuration
Mount the regulator on a panel. Connect the voltage sensing and field wiring. Adjust the voltage and stability controls. The unit is ready for operation after wiring.
Compliance
Complies with EMC standards, CE and UL approved, RoHS compliant.
Conclusion
The Basler SR4A-2B16B3A offers reliable, cost‑effective voltage regulation for small to medium generators, ensuring stable power output.




