Siemens HEB2B070B - 70 A, 600 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Siemens HEB2B070B is a purpose-built 70A, 600V, 2-pole bolt-on molded case circuit breaker designed to safeguard your electrical system with dependable branch circuit protection. Built to endure in panelboards and load centers, this breaker combines rugged construction with precise protection, so you can trust it to perform when you need it most.

Key advantages that set this breaker apart

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, ensuring consistent electrical contact even in environments with movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overload (thermal) and short-circuit (magnetic) conditions, reducing nuisance trips and improving reliability.
• OEM compatibility designed to work seamlessly with matching Siemens OEM load centers and panelboards for straightforward installation and reliable coordination within your distribution system.
• Two-pole design ensures simultaneous disconnection of both conductors, enhancing safety and simplifying protection for shared circuits.
• Durable molded-case construction provides robust performance under typical residential, commercial, and light industrial use.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: HEB2B070B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 70 A
• Voltage Rating: 600 V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal applications and real-world scenarios

• Residential service panels requiring reliable protection for heavy-load circuits such as major appliance feeds or multi-wire branch circuits.
• Commercial distribution panels powering office equipment, lighting, or small HVAC subpanels where secure mounting and consistent trip performance matter.
• Light industrial installations where vibration resistance and durable connectors reduce maintenance and downtime.

With the Siemens HEB2B070B, you’re choosing a breaker built to deliver dependable overcurrent and short-circuit protection in demanding environments. Its combination of bolt-on robustness, a thermal-magnetic protection strategy, and OEM-compatible integration makes it a practical, high-value choice for professionals who need reliable electrical protection that won’t fail under real-world conditions.