Description

General Description

The STAVOL TNS3-B-30,000VA is a heavy-duty tri-phase automatic voltage regulator (AVR) designed to deliver stable and reliable 220V output for three-phase electrical systems. Built with pure copper windings and equipped with advanced safety components, this unit effectively protects sensitive and high-value equipment from voltage fluctuations, surges, and drops. The built-in by-pass function allows uninterrupted operation during maintenance or emergencies, making it ideal for continuous-use environments.

Full Product Features

• Tri-Phase Operation – Stable regulation for three-phase power systems

• Capacity: 30KVA – Suitable for medium to large electrical loads

• Wide Input Voltage Range: 160V – 260V AC

• Stable Output Voltage: 220V AC

• Frequency Range: 50–60Hz

• Circuit Breaker: 50A MCB for overload and short-circuit protection

• Pure Copper Winding – Ensures high efficiency, durability, and reliable performance

• Magnetic Contactor Safety System – Provides enhanced protection and smooth switching

• With By-Pass Function – Allows direct power flow during maintenance or AVR servicing

• Automatic Time Delay Protection:

  • Long Delay: 2–5 minutes

  • Short Delay: 2–5 seconds

• Robust Industrial-Grade Cabinet – Designed for long-term and heavy-duty use

Applications

The STAVOL AVR TRI-PHASE 220V 30KVA WITH BY-PASS is ideal for:

• Industrial machinery and production equipment

• Commercial buildings and office complexes

• Manufacturing plants and workshops

• Hospitals and medical facilities

• Data centers and IT infrastructure

• Elevators, motors, and heavy electrical systems

Additional information

Brand

STAVOL