Siemens BQ2H090 90A 2-Pole 240 V Circuit Breaker

Siemens BQ2H090 is a 90 Amp, 2-pole, 240-volt circuit breaker designed to protect high-draw 240V circuits in residential and light commercial panels that accept Siemens BQ-type breakers. With the part number BQ2H090, this breaker delivers reliable overcurrent protection for demanding load profiles while ensuring seamless compatibility within the Siemens ecosystem.

Key benefits

• 90 A current rating provides robust protection for large 240V feeders and heavy appliances, helping prevent overheating and electrical faults.
• 2-pole design disconnects both hot legs simultaneously for safer, code-compliant shutdown of 240V circuits.
• 240 V operation tailored for common 240V applications such as air conditioning systems, electric water heaters, dryers, and other high-draw equipment.
• Part of the Siemens BQ family ensuring plug-in compatibility, consistent trip characteristics, and streamlined replacement in Siemens panels.
• Clear identification with a dedicated 90A, 2-pole, 240V specification for quick verification during installation or service.

What makes it work for you

Designed to protect 240V circuits, the BQ2H090 acts as a vigilant safeguard against overloads and short circuits. Its two-pole construction guarantees that both hot conductors are interrupted together, which is essential for safely disconnecting 240V loads and reducing the risk of shock or electrical fire when a fault occurs. This precision is especially important for large appliances and feeders where uninterrupted protection is critical.

Ideal use cases

• Feeding high-draw 240V equipment in residential and light commercial settings.
• Serving main feeders or branch circuits in Siemens panels that accept BQ-type breakers.
• Replacing worn or outdated 240V breakers with a trusted Siemens BQ2H090 for reliable performance.
• Applications such as air conditioning units, electric water heaters, and large electric dryers that require solid overcurrent protection.

Installation and compatibility

Designed for use in Siemens panels that accept BQ-type breakers, the BQ2H090 provides a straightforward, reliable swap-in option when upgrading or expanding 240V circuits. Before installation, confirm that your panel label indicates compatibility with BQ-series breakers and ensure conductors and overcurrent protection are sized according to your specific load requirements.

Why choose Siemens for 240V protection

Siemens combines long-standing engineering expertise with a comprehensive line of protective devices. The BQ2H090 offers dependable performance within the trusted Siemens framework, delivering consistent operation, replacement compatibility, and clear specification visibility for safer, more efficient electrical systems.