Commander QBH270 - 70 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Commander QBH270 70A, 240V, 2-pole bolt-on molded case circuit breaker from AmpState is engineered to deliver reliable overcurrent and short-circuit protection where it matters most—inside panelboards and load centers. With a robust bolt-on design and a precise thermal-magnetic trip unit, this breaker stays securely connected and responds consistently, even in vibration-prone environments.

What makes the QBH270 unique

• Secure bolt-on mounting: Provides a rigid bus connection that resists loosening from vibration, delivering dependable protection in demanding installations.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by simultaneously sensing overcurrent (thermal) and short-circuit (magnetic) events for fast, predictable tripping.
• OEM compatibility: Designed to pair with matching Commander OEM load centers and panelboards for a streamlined, code-compliant installation.
• Versatile application range: Suitable for residential, commercial, and light industrial circuits where reliable branch-circuit protection is essential.

Technical snapshot

• Manufacturer: Commander
• Part Number: QBH270
• 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

Ideal use cases

The QBH270 is a precise fit for panelboards and load centers that require solid protection for mid-to-high current circuits. Use it as the main or subfeed breaker in residential service panels, or as a dependable protection device for commercial lighting and receptacle circuits, small motor loads, HVAC feeders, pumps, and other mid-range equipment common in light industrial settings. Its 2-pole design ensures coordinated protection for both legs of a 240V circuit, reducing the risk of unbalanced faults.

Installation and maintenance you can trust

• Designed to integrate with Commander’s family of OEM load centers and panelboards, helping you maintain consistent performance and ease of ordering.
• Bolt-on mounting simplifies field installation and replacement, while the rugged molded-case construction stands up to everyday electrical workspace conditions.
• Thermal-magnetic protection minimizes nuisance trips under routine surges and provides immediate response during short-circuit events, helping protect wiring, devices, and downstream equipment.

Why choose Commander QBH270 from AmpState

With the QBH270, you’re selecting a purpose-built solution for dependable branch-circuit protection that aligns with standard electrical panels used across homes and small businesses. Its combination of secure mounting, reliable trip behavior, and OEM-compatible design helps you achieve safer, more stable panel performance, fewer maintenance interventions, and straightforward replacement when updates or expansions are needed.