Square D QGP22100TM - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Square D QGP22100TM is a 100A, 240V, 2-pole bolt-on molded case circuit breaker designed to guard branch circuits in panelboards and load centers against overloads and short circuits.

Built for dependable protection, this unit combines a thermal-magnetic trip mechanism with a rugged bolt-on mounting, delivering stable, repeatable performance even in environments with vibration or panel movement. It’s designed to slot into matching OEM load centers and panelboards, making upgrades or replacements straightforward and compliant with Square D systems.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that maintains consistent electrical contact over time.
• Thermal-magnetic trip unit provides dual-action protection: the thermal element responds to overload conditions with precise, gradual protection, while the magnetic element delivers instant tripping on high fault currents.
• OEM-compatible with matching Square D load centers and panelboards, simplifying installation and ensuring coordinated protection across the panel.
• 2-pole design disconnects both conductors simultaneously, improving safety and simplifying troubleshooting in multi-wire circuits.
• Rated 100A at 240V, appropriate for branch circuits in residential service panels, commercial spaces, and light industrial equipment.

Technical Snapshot

• Manufacturer: Square D
• Part Number: QGP22100TM
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who this is for and practical use cases

The QGP22100TM is ideal for electricians and facility managers who need reliable, code-compliant protection in existing panels or during panel upgrades. Use it to:

• Protect branch circuits feeding outlets, lighting, and equipment in homes, offices, retail spaces, and light manufacturing.
• Replace worn or tripping breakers in Square D panelboards with a component designed to match the original hardware and performance standards.
• Upgrade to a robust thermal-magnetic solution that reduces nuisance trips while preserving fast response to short circuits.

Why it matters

Combining a thermal overload element with a magnetic short-circuit trip gives you fast, reliable protection that adapts to different fault scenarios. The bolt-on design secures a long-lasting bus connection, reducing movement-induced wear and maintaining consistent protection throughout the life of the installation. For panels that demand compatibility and performance from a trusted brand, the QGP22100TM delivers peace of mind and practical, real-world reliability.