Siemens B330HH - 30 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens B330HH is a 30 A, 240 V, 3-pole bolt-on molded case circuit breaker designed to deliver reliable, three-phase protection for panelboards and load centers. Built to withstand vibration and frequent operation, it provides dependable branch circuit overcurrent and short-circuit protection in a wide range of settings—from homes to light commercial environments.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection for uninterrupted power delivery and long-term reliability.
• Thermal-magnetic trip unit: Combines precise overload protection with fast short-circuit interruption, delivering stable and repeatable protection performance across varying electrical conditions.
• OEM-compatible design: Engineered to be compatible with matching Siemens load centers and panelboards, ensuring smooth integration into existing systems.
• Three-pole, 30 A, 240 V: Ideal for three-phase circuits and equipment that require solid, balanced protection in commercial or light industrial applications.
• Molded case construction: Durable housing that shields sensitive components while simplifying installation in standard panel layouts.

The B330HH excels in environments where reliability and consistent protection matter most. Use it to guard three-phase feeders, motor loads, HVAC equipment, lighting panels, and other branch circuits in residential, commercial, and light industrial settings. Its bolt-on style is particularly advantageous in retrofit projects or panels where a rigid connection reduces the risk of loose connections over time.

Why choose the Siemens B330HH?

What sets this breaker apart is its combination of secure mounting, dependable thermal-magnetic protection, and deliberate compatibility with Siemens OEM panel components. This means fewer compatibility concerns, fewer misfires on overloads or faults, and a cleaner, more dependable installation overall.

Technical snapshot:

• Manufacturer: Siemens
• Part Number: B330HH
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30 A
• Voltage Rating: 240 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

If you’re upgrading or configuring a new panel, the Siemens B330HH offers a precise balance of robust protection and straightforward installation, ensuring dependable electrical safety for your three-phase circuits.