Siemens QR23B200L - 200 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens QR23B200L is a 200A, 240V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built to endure vibration and demanding electrical environments, it offers robust protection where reliability matters most.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays solid even in demanding service conditions.
• Thermal-magnetic trip unit delivers stable, repeatable protection for both overloads and short circuits, helping to minimize nuisance trips and protect sensitive equipment.
• 3-pole, 200A, 240V rating ideal for 3-phase feeders and heavy-load circuits in commercial and light industrial applications.
• OEM panelboard compatibility designed to pair with matching Siemens panels and other OEM loadcenters for a reliable fit and straightforward replacement.
• Versatile protection suitable for residential, commercial, and light industrial electrical systems that require solid branch-circuit protection.

Why this breaker stands out The QR23B200L merges a rugged bolt-on form factor with a precise thermal-magnetic trip that responds to real-world demand — balancing prompt response to faults with resistance to unnecessary trips during normal operation. This makes it a practical choice for equipment rooms, service panels, and distribution panels where stable protection and repeatable performance are non-negotiable.

Ideal use cases

• Upgrading panelboards in commercial facilities that run multiple 200A feeders.
• Installing reliable 3-phase protection for industrial equipment and HVAC systems.
• Retrofits in residential or light commercial projects where bolt-on breakers are preferred for a secure bus connection.

Specifications at a glance

• Amperage rating: 200 A
• Voltage rating: 240 V
• Number of poles: 3
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker

For installers and facility engineers, the Siemens QR23B200L is the trusted choice when you need solid, long-term protection for 3-phase circuits in panels designed to accept bolt-on breakers. Pair it with compatible panelboards and loadcenters to ensure a seamless, dependable electrical protection solution that stands up to daily operation and occasional on-site vibrations. If your project calls for reliable 200A, 3-pole protection with a robust mounting method and repeatable trip performance, the QR23B200L delivers clear, measurable value in real-world use.