Siemens BQD290 - 90 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Siemens BQD290 is a 90A, 480V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure demanding electrical environments, this unit delivers precise protection when it matters most, from everyday commercial spaces to light industrial setups.

Key features

• Secure bolt-on mounting: A rigid, vibration-resistant bus connection that stays dependable through the life of the installation.
• Thermal-magnetic trip unit: Combines precise overload sensing with fast short-circuit response for stable, repeatable protection performance across varying loads and temperatures.
• OEM compatibility: Designed to be used with matching Siemens OEM load centers and panelboards for seamless upgrades and replacements.
• Versatile application: Suitable for residential, commercial, and light industrial environments where reliable distribution protection is essential.

Technical specifications at a glance

• Manufacturer: Siemens
• Part number: BQD290
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 90 A
• Voltage rating: 480 V
• Number of poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal applications and practical use cases

Use the BQD290 to protect feeders and branch circuits fed from panelboards and load centers in both new installations and existing upgrades. It’s well-suited for:

• Residential and light commercial distribution panels where 90A protection is required
• Commercial lighting and receptacle circuits that demand reliable fault protection
• Small motor circuits in light industrial settings where quick interruption of faults minimizes downtime

Why choose this breaker

The BQD290 stands out with its combination of secure mounting, durable construction, and a smart trip mechanism. The bolt-on design reduces movement under vibration, while the thermal-magnetic trip unit delivers consistent protection against both overloads and short circuits. Pair it with compatible Siemens panelboards to maintain electrical coordination and protection across the distribution system.

Installation notes and compatibility

This 2-pole, bolt-on breaker is intended for use in Siemens OEM panelboards and load centers. Before integrating it, verify that your equipment specification aligns with the BQD290’s 90 A, 480 V, 2-pole design to ensure a trouble-free fit and optimal protection performance.

Available through AmpState, the Siemens BQD290 90 A, 480 V, 2-Pole Bolt-On Circuit Breaker is a reliable choice for professionals seeking precise, durable branch circuit protection. Add it to your cart to safeguard your electrical distribution with equipment designed to work together seamlessly.