Square D QI2100 - 100A, 2-Pole, Circuit Breaker

The Square D QI2100 is a dependable 100A, 2‑pole circuit breaker designed to deliver reliable overcurrent protection where it matters most. Built for industrial, commercial, and OEM environments, this device is ready to shield your distribution panels, switchboards, and control panels from electrical faults with precision and peace of mind.

Key specifications at a glance

• Current rating: 100A
• Poles: 2‑Pole
• Type: Circuit Breaker
• Applications: Panelboards, switchboards, and control panels

Why this 2‑pole design matters

• Protects two conductors simultaneously, ensuring coordinated disconnection during overcurrent events for safer, more reliable operation.
• Ideal for feeders and branch circuits where both live lines require synchronized protection in the same enclosure.
• Fits seamlessly into standard Square D distribution ecosystems, simplifying maintenance and part replacement in busy facilities.

What problems it solves

• Prevents damage from overloads and short circuits in critical equipment ecosystems, reducing unplanned downtime.
• Supports safe operation in motor control centers and distribution panels by providing quick, predictable interruption of fault currents.
• Streamlines OEM panel builds with a compact, trusted protection solution designed for rugged environments.

Ideal use cases

• Industrial facilities needing robust feeders and panel protection in motor control centers.
• Commercial electrical rooms requiring reliable, space-efficient 2‑pole protection.
• OEM equipment enclosures that demand proven protection and straightforward integration with existing Square D components.

Installation and compatibility tips

Pair the QI2100 with compatible panelboards, switchboards, and control panels in Square D systems to ensure optimal performance. When upgrading or replacing existing protection, verify that the 2‑pole, 100A configuration matches your enclosure’s rating and space. For best results, follow standard installation practices for electrical safety and confirm the device is correctly seated and secured in its mounting path.

Choose the Square D QI2100 100A, 2‑Pole Circuit Breaker for mission-critical protection that keeps industrial processes flowing, reduces risk, and aligns with your existing Square D infrastructure. Ready to safeguard your distribution panels and motor control centers with a trusted, purpose-built solution.