Basler BE34062001 G18 Control Transformer

The Basler BE34062001 (also referenced as G18, F840101) is a high‑quality control transformer designed for generator excitation, voltage regulation, and protection systems. This transformer provides galvanic isolation and accurate voltage scaling between high‑voltage power circuits and low‑voltage control electronics, ensuring safe and reliable operation of sensitive devices such as AVRs, protective relays, and monitoring equipment.

The transformer features precision‑wound coils with high‑grade magnetic core materials, delivering consistent voltage transformation with minimal losses. Its robust construction includes high‑temperature insulation materials and a rugged enclosure, providing long service life even in harsh environmental conditions. The BE34062001 is designed for panel mounting with clearly labeled screw terminals, simplifying installation and maintenance.

Technical Specifications

• Model: BE34062001 (G18, F840101)

• Type: Single‑phase control transformer

• Primary voltage: 120‑240 V AC (selectable via taps)

• Secondary voltage: 24‑120 V AC (depending on configuration)

• Power rating: 100‑500 VA (refer to nameplate for exact rating)

• Frequency: 50/60 Hz

• Insulation class: Class F (155°C) or Class H (180°C)

• Protection class: IP20 (enclosed design)

• Thermal protection: Integrated thermal fuse or PTC thermistor

• Terminals: Screw‑type terminals with clear labeling

• Mounting: Panel mount with slotted holes

• Dielectric strength: 2500 V AC (primary to secondary)

• Operating temperature: -40°C to +70°C

• Certifications: CE, UL, RoHS

Functional Features

• Galvanic isolation: Separates power and control circuits, enhancing safety.

• Voltage scaling: Transforms primary voltage to a usable level for control electronics.

• Tap selection: Multiple primary taps allow adaptation to different line voltages.

• Thermal protection: Built‑in temperature sensing prevents overheating.

• Durable construction: Encapsulated windings protect against moisture and vibration.

Typical Applications

• Generator excitation systems: Providing isolated power for AVR control boards.

• Protection relay panels: Supplying voltage to digital and analog protective relays.

• Motor control centers: Powering control circuits for contactors and starters.

• Switchgear: Control voltage for circuit breaker trip coils and indication lamps.

Installation and Wiring

Mount the transformer securely on a flat panel. Ensure adequate clearance for heat dissipation. Connect the primary side to the AC mains through a fused disconnect, selecting the correct primary tap. Connect the secondary side to the control load, ensuring the total load does not exceed the transformer's VA rating. The grounding terminal must be connected to the panel earth.

Compliance

Complies with IEC 61558‑2‑2, EN 61000‑6‑2/‑4, CE and UL approved, RoHS compliant.

Conclusion

The Basler BE34062001 control transformer provides reliable voltage isolation and scaling for generator control systems, ensuring safe and accurate operation of protection and excitation equipment.