Siemens BQD37000S01 70A 3P 480V Circuit Breaker, Bolt-On | AmpState

Meet the Siemens BQD37000S01—a purpose-built bolt-on circuit breaker that delivers reliable overcurrent protection for 70 A, three-pole, 480 V systems. Crafted for panelboards, load centers, and electrical distribution layouts, this unit is the pragmatic choice when you need a consistent part number for retrofit work and routine maintenance without sacrificing performance.

What makes this bolt-on breaker right for your system

• 70 A, 3-pole, 480 V protection designed for three-phase distribution in commercial and industrial environments.
• Bolt-On mounting provides solid mechanical retention and a dependable electrical connection, helping reduce arcing risk and downtime during replacements.
• Panelboard and load center compatibility specifically suited for configurations where a fixed, heavy-duty breaker is required to secure circuit protection across multiple legs.
• Part-number stability — BQD37000S01 ensures consistency through retrofits and service replacements, simplifying maintenance planning when your system depends on a precise component family.

This breaker is ideal for facilities aiming to streamline retrofit projects, maintain standardized parts across the electrical distribution network, or perform routine maintenance without re-engineering bus configurations. It helps electricians minimize configuration gaps and keeps panel changes aligned with existing equipment inventories.

Practical use cases and considerations

Use the Siemens BQD37000S01 when you need to:

• Replace a failed or worn-out breakers in 480 V, three-phase panelboards and load centers.
• Maintain a uniform part number across multiple retrofit or expansion projects for easier procurement and serviceability.
• Install a bolt-on solution in facilities where secure mounting and robust contact reliability are priorities for critical feeders and distribution circuits.

Installation and compatibility notes — This model is intended for professionals working with Siemens panel configurations that support bolt-on 3P 480V devices. If you’re unsure about fit, AmpState offers assistance to confirm compatibility and ensure a proper match for your specific panelboard or load center.

Availability and support — Available from AmpState. If you need help matching a part number or confirming compatibility, message us and we’ll help you confirm fit before you purchase.

Specifications at a glance

• Product Type: Circuit Breaker
• Manufacturer: Siemens
• Part Number: BQD37000S01
• Amperage: 70 A
• Poles: 3
• Voltage: 480 V
• Mounting Type: Bolt-On
• Applications: Panelboards, Load Centers, Electrical Distribution

Ready to secure your distribution system with a trusted Siemens bolt-on solution? Choose the Siemens BQD37000S01 from AmpState and ensure consistent, dependable circuit protection across your 480 V, three-phase network.