Basler Electric SR4A2B06B3A Static Voltage Regulator
The Basler Electric SR4A2B06B3A is a state‑of‑the‑art static voltage regulator belonging to the proven SR4A series. Designed for brushless generators, it provides precise automatic voltage regulation (AVR) under varying load and speed conditions. This model combines advanced control algorithms with rugged construction to ensure stable generator output in demanding industrial and marine environments.
The SR4A2B06B3A employs a fully solid‑state design, eliminating moving parts and delivering fast response times. Its built‑in sensing circuitry continuously monitors the generator’s output voltage and compares it to a reference setting, adjusting the excitation current to maintain the set point within ±0.5% accuracy.
Key Features
±0.5% voltage regulation accuracy
Adjustable voltage range from 90 to 240 VAC
Built‑in under‑frequency roll‑off protection
Over‑excitation and under‑excitation limiting
DFM (Digital Frequency Measurement) for optimal response
Remote voltage adjustment capability
Technical Specifications
Input power: 120/240 VAC, 50/60 Hz; output: 0–10 A DC; response time < 20 ms. The regulator operates over a temperature range of -40°C to +70°C and complies with IEEE and IEC standards for electromagnetic compatibility and safety.
Applications
Commonly used in prime power generators, standby sets, and mobile power units. The SR4A2B06B3A is ideal for oil and gas, telecommunications, and data centre backup power systems where voltage stability is critical.
Installation and Configuration
Mounting is simple with the provided base plate. The regulator features pluggable terminals for easy wiring of sense leads, field output, and auxiliary inputs. Configuration is performed via DIP switches and potentiometers, allowing fine‑tuning of gain, stability, and voltage setpoint without external software.
Reliability and Protection
Over‑voltage, over‑current, and thermal protection are integrated to safeguard both the regulator and the generator. The unit is encapsulated to resist moisture, dust, and vibration, ensuring long service life in harsh conditions.
Why Choose the SR4A2B06B3A?
This regulator offers an excellent balance of performance and cost. Its proven design, backed by Basler Electric’s decades of expertise, makes it a top choice for OEMs and end‑users alike. With global service support and comprehensive documentation, the SR4A2B06B3A ensures reliable generator operation wherever it is deployed.
In conclusion, the Basler Electric SR4A2B06B3A static voltage regulator delivers precise, dependable voltage control for a wide range of generator applications. Its robust features and ease of use make it an essential component for any power system requiring stable output.




