Siemens B345HH 45A 3P 240V Circuit Breaker, Bolt-On | AmpState

Discover reliability and streamlined service with the Siemens B345HH 45A 3P 240V Bolt-On Circuit Breaker, available from AmpState. Built for robust panel protection in commercial and industrial electrical distributions, this unit is designed to simplify retrofit work and maintenance while keeping your existing part number intact.

Why choose the Siemens B345HH for your electrical system?

• Bolt-On mounting delivers a secure, vibration-resistant connection that simplifies field replacements and reduces installation time.
• Consistent part number for retrofits—B345HH keeps your panel configuration intact, making planning and stocking easier during upgrades or repairs.
• 3-pole, 240V operation tailored for balanced 3-phase systems, providing reliable protection across all phases.
• 45 A rating offers decisive protection for medium-load panelboards and distributed circuits without sacrificing available capacity.
• Renowned Siemens engineering means predictable trip characteristics, dependable performance, and compatibility with standard electrical distribution equipment.
• AmpState support ensures you can verify fit and compatibility quickly—just reach out if you need confirmation before purchase.

Key specifications

• Manufacturer: Siemens
• Part Number: B345HH
• Product Type: Circuit Breaker
• Amperage: 45 A
• Poles: 3
• Voltage: 240 V
• Mounting: Bolt-On

Ideal use scenarios

• Retrofit projects where maintaining the same part number is crucial for panel compatibility and spare parts planning.
• Maintenance cycles in panelboards and load centers that require quick, secure replacements without rewiring or reconfiguring bus connections.
• New or upgraded 3-phase distribution setups needing a reliable 3-pole 240V protection solution with straightforward bolt-on installation.

How this benefits your operation

• Minimize downtime during service calls with a straightforward bolt-on swap that doesn’t disrupt existing configurations.
• Improve maintenance planning by relying on a standard, widely stocked part number (B345HH).
• Trust in Siemens’ engineering for consistent protection across your 3-phase electrical distribution, reducing the risk of nuisance trips and electrical faults.

Available from AmpState, the Siemens B345HH 45A 3P 240V Bolt-On Circuit Breaker is a practical, future-ready choice for professionals who value dependable protection and efficient service. If you’re unsure about compatibility, AmpState offers support to confirm fit and ensure seamless integration into your panelboard or load center. Add this trusted breaker to your toolkit and keep your electrical system protected with precision and ease.