Siemens BQD6135 - 35 A, 347 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens BQD6135 — a 1-pole, 35A, 347V bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers.

Rigid, vibration-resistant mounting — the secure bolt-on design creates a solid bus connection that stays put through routine cycling and equipment vibration, reducing loosened connections and trip risk.

Thermal-magnetic protection you can trust — with a thermal-magnetic trip unit, it delivers stable, repeatable response to overcurrent and short-circuit events, helping to prevent nuisance trips while ensuring fast fault clearance when it matters.

OEM-compatible and easy to upgrade — designed to be compatible with matching Siemens OEM panelboards and load centers, enabling straightforward retrofits and consistent protection across distribution systems.

Versatile for multiple industries — ideal for residential, commercial, and light industrial applications, including lighting circuits, receptacle banks, and small motor loads within 347V distribution networks.

Key specifications

• Manufacturer: Siemens
• Part Number: BQD6135
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 35 A
• Voltage Rating: 347 V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose this breaker over alternatives? Its bolt-on construction reduces the risk of loose connections in busy panels, while the thermal-magnetic mechanism offers precise, predictable tripping behavior across a wide range of fault conditions. For facilities that demand reliable protection without frequent maintenance, the BQD6135 delivers consistent performance from installation through long-term operation.

Practical installation and use cases — install in new panel builds for clean, secure mounting, or upgrade aging panelboards to improve fault protection on critical circuits. Suitable for residential subpanels feeding kitchens and HVAC controls, commercial lighting and receptacle runs, or light industrial control panels in small facilities that operate on 347V systems.