Cbi QL-1 - 110-240A, 1-Pole, Miniature Circuit Breaker (MCB)

The Cbi QL-1 110-240A, 1-Pole Miniature Circuit Breaker (MCB) delivers reliable single‑phase protection where panel space is at a premium and dependable overcurrent control is non‑negotiable. Built for diverse installation environments, this compact MCB is ready to anchor your distribution panels, switchboards, and control panels with steady performance.

• Current rating: 110-240 A
• Poles: 1-Pole
• Breaker type: Miniature Circuit Breaker (MCB)
• Applications: ideal for panelboards, switchboards, and control panels in industrial, commercial, and OEM settings

Designed for demanding environments, the QL-1 shines in industrial and commercial applications where consistent protection and safe operation are critical. Use it to safeguard single‑phase feeders and control circuits within distribution panels and motor control centers, ensuring quick response to overcurrent events and minimizing downtime.

Why choose this 1‑pole MCB? It combines a compact footprint with straightforward integration into existing panel architectures, reducing wiring complexity while delivering dependable protection for critical circuits. The broad 110–240 A range makes it adaptable across a variety of panel configurations, so you can standardize your protection strategy without juggling multiple device families.

Who benefits most? technicians and engineers upgrading or expanding panel networks, OEMs seeking reliable single‑phase protection across multiple machines, and facilities managers aiming for safer, more maintainable electrical enclosures. If you’re replacing aging breakers or standardizing a panel fleet, the Cbi QL-1 provides consistent performance and project‑level versatility.

Practical tips for use:

• Match the breaker’s current range to the protected circuit’s load profile to ensure appropriate trip characteristics over the life of the installation.
• Plan for straightforward replacement and maintenance by consolidating on a single 1‑Pole MCB family across panels where single‑phase protection is required.
• Follow your panel manufacturer’s wiring guidelines and torque specs during installation to maintain reliable contact and long‑term performance.