Siemens BQ3B07000S01 - 70 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens BQ3B07000S01 is a 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short‑circuit protection in panelboards and loadcenters. With a 70A rating at 240V, it provides robust protection for 3‑phase or multi‑circuit installations commonly found in residential, commercial, and light industrial settings.

• Secure bolt-on mounting: a rigid, vibration‑resistant bus connection minimizes movement and wear, helping maintain reliable electrical performance in environments with equipment or motor loads.
• Thermal-magnetic trip unit: combines thermal overload protection with magnetic instantaneous trip for fast, repeatable response to short circuits, reducing nuisance trips and protecting downstream circuits.
• OEM loadcenter compatibility: specifically designed to align with matching Siemens OEM loadcenters and panelboards, ensuring correct fit, trip characteristics, and coordinated protection.
• Versatile across sectors: ideal for residential, commercial, and light industrial installations that require solid 3‑pole, 240V protection for main distribution or branch circuits.

Technical snapshot

• Amperage rating: 70A
• Voltage rating: 240V
• Number of poles: 3
• Mounting style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker
• Part number: BQ3B07000S01

Use this 3‑pole bolt-on breaker when upgrading or installing panelboards and loadcenters that require solid 3‑phase protection at 240V. It’s particularly well-suited for motor-driven equipment, HVAC controls, and other circuit-heavy applications where a secure connection and precise trip behavior matter. By choosing a Siemens device with a proven thermal‑magnetic trip profile, you get predictable protection performance, fewer interruptions, and a clean fit within compatible Siemens panel ecosystems.

In practice, the BQ3B07000S01 helps you achieve coordinated protection in spaces where space, vibration, and reliable bus connections are concerns—from refurbished commercial spaces to light industrial settings. When you need a dependable, ladder-compatible 3‑pole solution that aligns with Siemens’ OEM panel systems, this unit is an effective, purpose-built choice for long-term reliability.