Siemens B340H 40A 3P 240V Circuit Breaker, Bolt-On | AmpState

The Siemens B340H is a purpose-built bolt-on circuit breaker engineered for dependable protection in panelboards, load centers, and electrical distribution systems. With a 40-amp, 3-pole configuration at 240V, this device delivers robust, multi‑phase protection for demanding electrical circuits while maximizing field service efficiency through a straightforward bolt-on installation.

• Amperage: 40 A
• Poles: 3
• Voltage: 240V
• Mounting: Bolt-On
• Applications: Panelboards, load centers, and general electrical distribution

Why this matters. The bolt-on design simplifies retrofits and maintenance planning, allowing technicians to replace or upgrade breakers without altering the surrounding architecture. The B340H is specifically chosen when keeping the same part number across service cycles matters—reducing procurement headaches and ensuring consistent compatibility across your electrical footprint.

Who should consider the Siemens B340H:

• Electrical contractors performing retrofit work where a stable part number streamlines ordering and inventory control.
• Facilities teams that rely on consistent, predictable components for planned maintenance and future replacements.
• Projects where 3-pole protection at 240V is required to safeguard multi‑phase circuits in distribution systems.

Use cases and practical benefits:

• Retrofit projects in aging panels where updating protection is needed without redesigning the electrical distribution layout.
• Maintenance planning that benefits from a known, standardized Siemens part number for easier sourcing and compatibility checks.
• Installation in systems that demand reliable 3‑pole, 240V protection to guard multi‑phase engines, motors, and feeders.

AmpState provides the Siemens B340H 40A 3P 240V bolt-on circuit breaker to support reliable upgrades and ongoing service. If you’re unsure about fit or compatibility, you can reach out—we’ll help confirm the right part for your panelboard or load center.

Key reassurance: this part is available from AmpState, designed to integrate smoothly with Siemens’ standard protective strategy, and backed by guidance to ensure proper sizing and mounting during installation. If you need help matching a part number or confirming compatibility, message us and we’ll help you confirm fit.