Siemens HQR22B100L - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens HQR22B100L — a rugged, reliable 2-pole, 100A, 240V molded case circuit breaker designed to safeguard your electrical system with precision. Built for panelboards and loadcenters, this bolt-on device delivers a secure, vibration-resistant connection and dependable branch circuit protection where it matters most.

Why choose the Siemens HQR22B100L

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing the risk of loose contacts in demanding environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance for both overloads and short circuits across a range of conditions.
• OEM-compatible design ensures seamless compatibility with matching Siemens loadcenters and panelboards, simplifying installations and replacements.
• Versatile application suitable for residential, commercial, and light industrial use, making it a practical choice for a variety of panels and feeders.

Key specifications

• Manufacturer: Siemens
• Part Number: HQR22B100L
• 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

Ideal use scenarios

• Upgrading residential service panels to robust 100A feeders for main distribution or subpanels.
• Protecting commercial lighting and receptacle circuits that require reliable 2-pole 240V protection.
• Feeding light industrial equipment where a secure, vibration-resistant connection is essential.
• Replacing worn or incompatible breakers in Siemens OEM panelboards with a like-for-like, guaranteed-fit solution.

Installation and compatibility tips

• Use exclusively in matching Siemens OEM panelboards and loadcenters designed for bolt-on molded case breakers.
• Ensure the mounting area is clean and free of debris to maintain the integrity of the bolt-on connection.
• Follow manufacturer guidelines for installation torque and alignment to preserve trip accuracy and connection reliability.
• Consider this unit as part of a coordinated protection scheme for feeders and subcircuits that demand precise thermal-magnetic response.

With the Siemens HQR22B100L, you gain a dependable, easy-to-service solution that combines a secure mechanical fit with precise protection characteristics. It’s the smart choice for installers and facility managers seeking durable, code-compliant overcurrent protection for panelboards and loadcenters.