Basler Electric SR4A2BO6B3A Static Voltage Regulator

The Basler Electric SR4A2BO6B3A is a variant of the SR4A series static voltage regulators, offering the same robust performance with slightly different configuration options. It is a fully solid‑state automatic voltage regulator designed to maintain constant generator terminal voltage under varying loads and speeds. This model is particularly suited for retrofit applications where a direct replacement is needed.

Like its counterparts, the SR4A2BO6B3A uses a proven analog control circuit with minimal components, ensuring high immunity to electrical noise and transient disturbances. Its compact design allows installation in confined control panels.

Key Features

• Accurate voltage regulation within ±0.5%

• Adjustable voltage setpoint and stability

• Under‑frequency roll‑off for engine protection

• Over‑excitation and field short‑circuit protection

• Remote voltage trim capability

Technical Specifications

Supply voltage: 120/240 VAC; output current: 6 A DC continuous; regulation accuracy: ±0.5%; response time: < 25 ms; operating temperature: -40°C to +70°C.

Applications

Widely used in standby generators, rental fleets, and mobile power units. It ensures stable voltage for sensitive electronic loads, such as computers and communication equipment.

Installation and Tuning

Mounting is facilitated by a standard base plate. Connections are made via screw‑type terminals. Tuning is achieved with adjustable pots for voltage, gain, and damping. The regulator includes a LED indicator for power and fault status.

Protection and Durability

Integrated protections include loss‑of‑sensing, over‑voltage, and over‑temperature shutdown. The board is coated with a conformal layer to resist moisture and corrosion, ensuring reliable operation in harsh industrial environments.

Why Choose the SR4A2BO6B3A?

This regulator combines simplicity with reliability, making it an excellent choice for operators who need a straightforward, field‑proven solution. Basler Electric’s support and documentation ensure that installation and maintenance are hassle‑free.

In summary, the SR4A2BO6B3A is a dependable static voltage regulator that provides consistent performance, protecting your generator and connected loads from voltage fluctuations.