Commander 70 Amp Circuit Breaker BQL370 - 70 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Commander 70 Amp Circuit Breaker BQL370 is built for dependable branch circuit protection in panelboards and loadcenters. With a 70A, 240V rating and a 3-pole design, this bolt-on molded case circuit breaker is ready for 3‑phase applications across commercial and light industrial environments, as well as select residential setups that demand robust protection.

Secure bolt-on mounting provides a rigid, vibration‑resistant bus connection. In busy service rooms, equipment closets, or installations subject to vibration, the BQL370 stays firmly seated and maintains consistent electrical contact, reducing the risk of arcing or connection looseness over time.

Thermal-magnetic trip unit delivers stable, repeatable protection by combining dependable thermal overload sensing with instantaneous magnetic trip for short circuits. This pairing accelerates fault response while minimizing nuisance trips due to temperature fluctuations, helping keep critical loads online and reducing downtime.

OEM-compatible and easy to retrofit the BQL370 is designed to work with matching Commander load centers and panelboards. This compatibility simplifies upgrades, replacements, or retrofits, ensuring uniform trip curves and labeling across your distribution system for reliable protection and easier maintenance.

Technical snapshot

• Part Number: BQL370
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 70A
• Voltage Rating: 240V
• Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Protect feeders and branch circuits in commercial panelboards and distribution frames
• Support light industrial equipment racks and service panels
• Guard 3‑phase circuits in data centers, workshops, and mechanical rooms
• retrofit or replace aging breakers with a proven, compatible Commander solution

What sets it apart

• Solid mechanical stability thanks to bolt-on mounting, preserving bus integrity under vibration
• Predictable trip behavior with a thermal-magnetic system that balances safety and uptime
• Designed for seamless integration with OEM load centers and panelboards to maintain consistent protection profiles

For installers and facility managers seeking reliable, long‑lasting branch circuit protection, the Commander BQL370 delivers precise protection, straightforward installation, and compatibility you can count on across residential, commercial, and light industrial projects. Trust AmpState to supply authentic Commander breakers that keep your electrical systems running smoothly.