Siemens QJ22B070H - 70 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens QJ22B070H — a 70A, 240V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters.

Key to its reliability is the secure bolt-on mounting, delivering a rigid, vibration-resistant connection to the distribution bus. This design minimizes movement and nuisance trips in environments where panels experience vibration or relocation, ensuring consistent protection when it matters most.

• Thermal-magnetic trip unit provides stable, repeatable protection: the thermal element guards against overload, while the magnetic element responds instantly to short circuits, helping protect wiring and connected equipment.
• OEM-compatible compatibility engineered to pair with matching Siemens loadcenters and panelboards for straightforward replacements and trouble-free integration.
• Versatile protection for multiple sectors ideal for residential, commercial, and light industrial panels that require reliable 2-pole 70A protection at 240V.

What problems does this breaker solve?

By delivering precise thermal and magnetic tripping at a 70A rating, the QJ22B070H helps prevent conductor damage, equipment failure, and wiring overloads. Its bolt-on design reduces installation challenges in busy electrical rooms, while OEM compatibility minimizes mismatch risks during upgrades or service checks.

Who is this breaker for?

Electrical professionals and facilities managers who maintain Siemens panelboards and loadcenters, as well as seasoned DIY installers working on residential service panels, will appreciate the straightforward replacement path, robust mounting, and reliable protection performance of the QJ22B070H.

Technical snapshot

• Manufacturer: Siemens
• Part Number: QJ22B070H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 70A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Siemens QJ22B070H for a dependable, OEM-compatible two-pole solution that delivers precise protection and solid, vibration-resistant performance in panelboards and loadcenters across residential, commercial, and light industrial settings.