Siemens BQ2B055 50A 2P 240V Circuit Breaker, Bolt-On | AmpState

Introducing the Siemens BQ2B055 — a precise 50A, 2-pole, 240V bolt-on circuit breaker designed for reliable protection in panelboards, load centers, and electrical distribution systems. This is the kind of part engineers and maintenance teams rely on when a direct part-number match is essential, making it an ideal addition to spare inventories and field service kits. Available now from AmpState.

• Manufacturer: Siemens
• Part Number: BQ2B055
• Product Type: Circuit Breaker
• Amperage: 50 A
• Poles: 2
• Voltage: 240 V
• Mounting: Bolt-On

The BQ2B055 stands out for applications that demand a straightforward, drop-in replacement with exact fit. Its bolt-on design simplifies installation, enabling quick, secure mounting to compatible panel rails without modifying bus connections. With a 50-amp, two-pole configuration, it provides robust protection for 240V circuits common in commercial, industrial, and larger residential distribution systems.

Who should consider this breaker? Maintenance teams stocking spare parts, panel builders seeking reliable Siemens compatibility, and any facility that relies on fast replacements to minimize downtime. If your project or service call requires a direct Siemens BQ2B055 match, this breaker is engineered to align with your existing equipment and protection scheme.

Use cases and benefits:

• Protect 240V circuits in panelboards and load centers with a 2-pole, 50A rating.
• Streamline inventory for field service by keeping a precise Siemens part on hand.
• Reduce replacement time and compatibility risk with a breaker that matches your original installation.

Installation and compatibility notes:

• Designed for bolt-on mounting on compatible Siemens panel systems and distribution gear.
• Best used when you need a direct part-number match for quick swap-out and reliable protection.
• Before replacing, confirm that the panel, bus type, and rating align with a 2-pole, 50A, 240V device.

Need help matching a part number or confirming compatibility? Message us and AmpState specialists will help you verify the fit and get you back up and protected fast.