Siemens B37000S01 - 70 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Engineered for rugged, dependable branch-circuit protection, the Siemens B37000S01 70A, 240V, 3-pole bolt-on molded case circuit breaker is built to safeguard panelboards and load centers from overcurrent and short circuits. Its bolt-on design delivers a rock-solid, vibration-resistant bus connection, making it a trusted choice for environments where panels endure movement or vibration—from commercial spaces to light-industrial settings.

Why this breaker stands out

• Secure bolt-on mounting ensures a rigid bus connection, reducing the risk of loose contacts and arcing in vibration-prone installations.
• Thermal-magnetic trip unit provides stable, repeatable protection across temperature swings, delivering predictable trips for overloads and short circuits.
• 3-pole design supports 3-phase circuits commonly found in commercial and light industrial applications, while still suitable for complex residential setups when needed.
• 240V rating aligns with typical distribution systems in many panels, making it a straightforward fit for upgrades and retrofits.
• 70A rating protects medium-load circuits without unnecessary nuisance trips, helping you balance protection and performance.
• OEM-compatible works with matching Siemens OEM load centers and panelboards, ensuring a seamless, reliable retrofit or new-install experience.
• Durable molded-case construction designed for long service life in demanding electrical environments.
• Versatile applications ideal for residential, commercial, and light industrial protection needs where dependable circuit control is critical.

Technical snapshot

• Manufacturer: Siemens
• Part number: B37000S01
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 70 A
• Voltage rating: 240 V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Upgrading panelboards in light commercial spaces where 3-pole protection is required for balanced 3-phase distribution.
• Installing or retrofitting load centers in office buildings, warehouses, or workshops that demand reliable protection against overloads and shorts.
• Locations subject to vibration or movement where a secure bolt-on connection reduces risk of connection loosening and intermittent trips.

Practical guidance for installation and compatibility

Confirm that your panelboard or load center is compatible with Siemens bolt-on molded case breakers and the B37000S01 form factor. Use proper installation practices to maintain a clean, corrosion-free bus connection and consult the panel manufacturer’s guidelines for torque and mounting requirements. The thermal-magnetic protection profile helps ensure consistent trip behavior across varying ambient conditions, simplifying maintenance and reducing unexpected outages.

Why choose Siemens B37000S01

When reliability matters and you need a sturdy, proven solution for protecting critical loads, the Siemens B37000S01 delivers precise protection, robust construction, and seamless compatibility with Siemens panel systems. It’s a thoughtful choice for electricians and facility managers seeking durable performance in residential, commercial, and light industrial environments—and it’s readily available through AmpState.