Basler Electric XR2002F – Solid‑State Voltage Regulator

The Basler Electric XR2002F (part number 9139400101) is a compact, reliable solid‑state voltage regulator designed for synchronous generators in industrial, agricultural, and standby applications. It provides stable excitation control with a straightforward adjustment interface, making it an ideal choice for both original equipment and retrofit installations.

Regulation Capabilities

The XR2002F utilises a PWM power stage for high efficiency and minimal heat generation. It accepts standard 120/240 V AC sensing inputs and delivers a regulated DC output to the field winding. The regulator includes adjustable voltage setpoint (90–110%), stability control, and under‑frequency roll‑off to protect the generator during speed variations. A soft‑start feature gradually builds up excitation, reducing mechanical stress on the prime mover.

• Input sensing: 120/240 V AC, 50/60 Hz

• Output current: 5 A continuous (7 A surge)

• Output voltage: up to 90 V DC

• Regulation accuracy: ±0.5% of setpoint

• Voltage adjustment range: ±10%

• Stability adjustment: continuous trimpot

• Under‑frequency roll‑off: adjustable 45–60 Hz

• Protections: over‑excitation limiting, short circuit

• LED indicators: power and regulation status

• Mounting: panel or chassis with heat sink

• Operating temperature: –20 °C to +60 °C

Typical Applications

This regulator is suitable for generator sets up to 300 kVA, commonly found in agricultural, construction, marine, and backup power installations. Its simple design and proven reliability make it a popular choice for OEMs and field service engineers.

Installation and Tuning

Mounting is quick with four screws, and all connections are made via screw terminals. Two trimpots—voltage and stability—allow rapid field tuning. The regulator also supports remote voltage adjustment via an external potentiometer.

Durability and Compliance

Built with high‑quality components and conformal coating, the XR2002F withstands moisture, dust, and vibration. It complies with CE and RoHS standards, ensuring safe and reliable operation.

In summary, the Basler Electric XR2002F voltage regulator offers precise, cost‑effective excitation control with robust performance, making it a dependable choice for generator operators worldwide.