Siemens Q2150BH - 150 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens Q2150BH—an exacting blend of power, protection, and plug-in simplicity. This 150 A, 240 V, 2-pole plug-in molded case circuit breaker is engineered to shield branch circuits in panelboards and load centers from overcurrent and short-circuit events with precision and reliability. When time is critical, its fast plug-in connection speeds up installations and replacements, keeping your electrical system protected with minimal downtime.

Designed to work seamlessly with matching OEM load centers and panelboards, the Q2150BH delivers a reliable fit that installers can trust. Its thermal-magnetic trip unit provides stable, repeatable protection across a wide range of operating conditions, giving you confident protection against both overloads and short circuits—without nuisance trips from normal temperature fluctuations.

This breaker is suited for a broad spectrum of environments—residential service panels, commercial distribution boards, and light-industrial installations—where dependable protection and straightforward replacement matter most. The two-pole configuration protects both conductors, maintaining system balance while safeguarding feeders and branch circuits up to 150 A.

Key features

• Fast plug-in connection: Quick installation and easy future replacements to minimize downtime.
• Thermal-magnetic trip unit: Combines thermal overload sensing with magnetic instantaneous protection for predictable, repeatable responses.
• OEM panel compatibility: Precisely matched to Siemens and compatible load centers for a reliable, gap-free fit.
• Rugged molded-case construction: Built to endure in panel environments, with solid isolation and clear fault signaling.
• Two-pole, 150 A, 240 V rating: Comprehensive protection for main feeders and branch circuits in mixed-use applications.

Technical snapshot

• Manufacturer: Siemens
• Part Number: Q2150BH
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150 A
• Voltage Rating: 240 V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal applications and practical use

For homeowners upgrading service panels, electricians performing load-center retrofits, or facility managers stocking spare parts for service reliability, the Q2150BH delivers dependable protection with minimal disruption. Use it to protect heavy-load circuits such as HVAC feeders, electric water heaters, or large branch circuits in garages, workshops, offices, or light industrial spaces. Its plug-in design simplifies panel maintenance and future circuit changes, enabling quick responses to evolving electrical loads.

Installation and safety tips

Ensure you’re following local electrical codes and panel manufacturer guidelines when replacing or installing a new breaker. Before handling any components, de-energize and lock out the panel, verify there is no voltage present, and confirm the replacement is the correct Siemens model for your OEM panelboard. Confirm the breaker seats firmly in the bus and that the labeling reflects the correct circuit. If in doubt, consult a licensed electrician to ensure proper coordination with existing protection schemes and to maintain safety and compliance.

With the Siemens Q2150BH in AmpState’s catalog, you’re choosing a trusted solution that combines rapid installation, precise protection, and durable construction—delivering dependable branch-circuit overcurrent and short-circuit protection for years to come.