Commander Sylvania Circuit Breaker 40 Amp 2 Pole Type QB Bolt On

Commander Sylvania Circuit Breaker 40 Amp 2 Pole Type QB Bolt On is engineered for dependable electrical distribution in demanding environments. Designed by Commander, this 40A, 2-pole unit is a purpose-built solution for panel upgrades, retrofit projects, and maintenance replacements where fast installation and reliable protection matter most. Whether you’re an electrician, a panel-builder, or part of an MRO team, this breaker is built to keep critical power flowing with minimal downtime.

• Type QB Bolt-On design: A secure, straightforward mounting method that speeds up installation and simplifies field service.
• 40 Amp, 2-Pole configuration: Suits standard 240V circuits, delivering simultaneous disconnect and reliable overcurrent protection for high-load loads such as heating, pumps, or large appliances.
• Industrial-grade reliability: Crafted for frequent service work, panel modernization, and spare-stock efficiency in busy facilities.
• Ideal for upgrades and retrofits: Serves as a dependable drop-in replacement in compatible panels, helping maintain consistent protection characteristics during panel modernization.
• Durable performance in varied settings: Built to withstand the rigors of commercial, industrial, and demanding residential applications while delivering predictable trip behavior.

Who this is for: Electricians performing panel upgrades or retrofit projects, panel-builders assembling new distribution arrays, and MRO teams stocking reliable spares for maintenance replacement work. If you need a trusted 2-pole 40A solution that installs quickly and integrates with Type QB bolt-on systems, this Commander Sylvania breaker is the practical choice for steady, safe power delivery.

Key specifications
Amperage rating: 40 Amp
Poles / configuration: 2 Pole
Type: QB Bolt-On

Practical installation notes: Ensure compatibility with your QB bolt-on panel, follow all safety procedures, and reference your panel’s labeling for proper placement. Confirm the circuit’s load requirements and use the breaker to provide targeted protection where it’s most needed. This unit is designed to support reliable service work, panel upgrades, and ongoing maintenance without sacrificing performance or safety.