Siemens B335 - 35 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens B335 — a 35 A, 240 V, 3-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for residential, commercial, and light industrial environments, this unit provides consistent performance where it matters most.

• Bolt-on mounting: secure, vibration-resistant bus connections that stay tight through operation, servicing, and occasional panel movement.
• Thermal-magnetic trip unit: the thermal element handles overload protection while the magnetic component delivers an instantaneous trip for short circuits, ensuring stable, repeatable protection across changing temperatures.
• 3-pole design: ideal for 3-phase circuits, delivering balanced protection and simplified wiring in commercial and light industrial installations.
• 240 V rating: compatible with common 3-phase and high-load single-phase configurations found in many panel installations.
• OEM compatibility: engineered to fit with matching Siemens OEM load centers and panelboards for a reliable, consistent fit and protection strategy.
• Versatile protection: specifically suited for preventing branch circuit overcurrent and short circuits in a variety of enclosure types—homes, offices, retail spaces, and small industrial settings.

Technical snapshot

• Manufacturer: Siemens
• Part Number: B335
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 35 A
• Voltage Rating: 240 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the Siemens B335? electricians and facility managers upgrading or expanding panelboards, contractors wiring new commercial spaces, and homeowners tackling robust garage or workshop circuits. The 3-pole, 240 V configuration is well-suited for 3-phase service upgrades, service panel enhancements, or distributed-load applications where secure mounting and rapid, reliable tripping are priorities.

Why this breaker stands out: unlike generic replacements, the Siemens B335 pairs a bolt-on, vibration-resistant connection with a proven thermal-magnetic trip mechanism. That means fewer loose connections, fewer nuisance trips, and clearer protection profiles for critical loads. When you need a dependable, industry-standard solution that fits seamlessly with Siemens OEM panels, the B335 delivers predictable performance with a straightforward installation path.

Practical tips for use and installation: ensure the breaker is installed in a compatible Siemens OEM load center or panelboard to maintain protection coordination. This unit is purpose-built for branch circuit protection in environments ranging from family homes to light commercial spaces, so plan for balanced 3-phase loads where applicable and verify conductor sizing matches the 35 A rating to maximize efficiency and safety.