Siemens HB2B070 - 70 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Siemens HB2B070 is a robust, 70 A, 240 V, 2-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Built for steady, long-term performance, it keeps your electrical distribution safe from overcurrents and short circuits while standing up to the vibrations and demands of everyday use.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus, reducing the risk of loose connections and ensuring consistent protection wherever your panel is installed.
• Thermal-magnetic trip unit combines precise thermal sensing with magnetic trip response for fast, repeatable protection. This means fewer nuisance trips from normal temperature changes, and rapid reaction to short circuits for equipment safety.
• 2-pole, 70 A, 240 V design is ideal for protecting feeders and multi-wire branch circuits in both residential and light commercial environments, delivering coordinated protection across both hot legs.
• Panelboard and loadcenter compatibility is tailored for use with matching OEM Siemens panelboards and loadcenters, helping you maintain system integrity and ease of replacement within an existing Siemens ecosystem.
• Versatile applications suited for residential, commercial, and light industrial installations where reliable overcurrent and short-circuit protection is essential—think service entrances, subpanels, or feeder circuits that demand consistent performance at 240 V.

Key benefits you’ll notice in practice

• Durable, long-term protection thanks to a molded case design that withstands physical and electrical stress in busy electrical rooms and work sites.
• Predictable protection curves from a trusted thermal-magnetic trip mechanism, ensuring that current surges and short circuits are decisively interrupted while normal loads stay online.
• Easy integration with existing Siemens panellines, reducing install time and increasing the likelihood of seamless replacement during upgrades or expansion projects.
• Clear, maintainable electrical distribution by simplifying circuit organization and safety compliance in a single, compatible package.

Who should consider the HB2B070? electrical professionals and facilities teams handling panel retrofits, new installations in residential or light commercial settings, or any project that requires dependable 70 A, 240 V two-pole protection with a secure bolt-on mount. If you’re building out or upgrading a Siemens-based electrical system, this breaker offers the reliability, mounting integrity, and precise protection you expect from a trusted molded case solution.