Siemens QR22B100 100A 2P 240V Circuit Breaker, Bolt-On | AmpState

Introducing the Siemens QR22B100 100A 2P 240V Bolt-On Circuit Breaker — a purpose-built safeguard for your electrical distribution system. Designed for panelboards, load centers, and distribution panels, this two-pole breaker delivers precise protection for feeders and branch circuits with a reliable 100-amp capacity at 240 volts.

Key benefits that matter in real-world installs

• Bolt-On mounting enables fast, secure installation in compatible Siemens panels, reducing installation time and downtime during retrofit work or maintenance.
• Two-pole design with 100 A rating provides balanced protection across both hot legs, safeguarding equipment and wiring from overloads.
• Standard 240V operation fits typical commercial and residential electrical distribution applications, ensuring compatibility with common panel types.
• Part number consistency QR22B100 keeps replacement and stocking straightforward in ongoing maintenance programs.
• Reliable Siemens engineering built to meet industry standards for durability and trip performance in real-world conditions.

Ideal use cases

• Retrofit projects where a matching Siemens part is required to maintain panel labeling and warranty coverage.
• Maintenance planning for facilities with Siemens panelboards and load centers.
• Replacement in existing installations to restore overcurrent protection without changing the panel hardware.
• Electrical distribution upgrades that demand dependable, easy-to-source 100A protection.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: QR22B100
• Type: Circuit Breaker
• Amperage: 100 A
• Poles: 2
• Voltage: 240 V
• Mounting: Bolt-On
• Availability: AmpState

Need help matching a part number or confirming compatibility with your panel model? Message us and we’ll help you verify fit quickly so you can proceed with confidence.