Schneider Electric QOB390VH1021 90A 3-Pole 390 V Circuit Breaker

Schneider Electric QOB390VH1021 delivers reliable protection for demanding three‑phase power systems. With a 90 A current rating and a 390 V maximum, this 3‑pole circuit breaker is built to handle modern industrial and commercial installations while safeguarding motors, transformers, and distribution panels from overloads and faults.

Why this breaker stands out

• High‑capacity 90 A protection for mid‑to‑large circuits in 3‑phase systems
• Three‑pole design ensures balanced protection across all phases
• 390 V voltage rating suitable for common industrial power distribution
• Rugged Schneider Electric engineering known for reliability and long service life
• Compact, install-friendly form factor compatible with standard panels

Practical applications

Ideal for protecting three‑phase motors, pumps, HVAC equipment, presses, and manufacturing lines in factories and large commercial facilities. Also suitable as a main distribution fault protection device in panel boards that serve data centers or retail infrastructure with 3‑phase power.

What you gain

• Protection that minimizes downtime and equipment damage
• Direct compatibility with established Schneider Electric installations
• Confidence from choosing a trusted, globally recognized electrical safety brand

Specifications

• Current rating: 90 A
• Poles: 3
• Voltage rating: 390 V
• Part number: QOB390VH1021
• Manufacturer: Schneider Electric