Westinghouse QNBL1020 - 20A, 1-Pole, Circuit Breaker

Westinghouse QNBL1020 is a reliable, purpose-built circuit breaker designed for single‑phase protection in demanding electrical environments. With a 20A rating and a 1‑Pole configuration, it delivers precise, dependable overcurrent protection where it matters most.

This breaker is built for flexible installation across a range of enclosures. Use it in panelboards, switchboards, and control panels to safeguard circuits in industrial, commercial, and OEM settings. Its compact, straightforward design helps you maximize space in crowded panels while maintaining robust protection for critical equipment.

Key benefits and practical applications

• Targeted overcurrent protection for single-phase circuits, helping prevent damage from overloads and short circuits.
• Ideal for distribution panels and motor control centers, where dependable protection supports steady uptime and safety.
• Versatile for multiple environments — suitable for industrial machinery, commercial power distribution, and OEM control systems.
• Simple integration with existing panel architectures thanks to its standard 1‑pole form factor and familiar wiring approach.

What makes the QNBL1020 stand out is its specific 20A, 1‑Pole configuration that suits moderate-current, single‑phase circuits precisely where you need it. Rather than a one-size-fits-all solution, this breaker is purpose‑built to slot into distribution panels and motor control centers, delivering reliable protection without complicating your panel layout.

Who should consider the Westinghouse QNBL1020? You’ll find it indispensable for electricians and engineers coordinating panelboard upgrades, new installations in industrial or commercial facilities, and OEM projects that demand a straightforward, dependable protection device for single‑phase circuits.

If you’re weighing options for overcurrent protection in a single‑pole setup, the QNBL1020 offers a focused, field‑tested solution built to endure the rigors of real-world use. Pair it with your existing Westinghouse distribution equipment to maintain consistency, simplify maintenance, and keep critical systems protected.