Siemens | QJ22B090 | Circuit Breaker | 90A | 2-Pole | 240V | 10kA | Bolt-On

Siemens QJ22B090 is a dependable, bolt-on circuit breaker crafted for 240V systems. With a 90‑amp rating and two poles, it delivers reliable protection for mid‑range loads while offering a robust 10kA interrupting capacity to handle high‑fault scenarios with confidence.

• Amperage: 90A
• Poles: 2‑Pole
• Voltage: 240V
• Breaking capacity: 10kA
• Mounting: Bolt‑On

Why this Siemens breaker stands out

• Bolt‑on mounting provides secure, vibration‑resistant installation in compatible panels, enabling reliable long‑term service.
• The exact part reference QJ22B090 ensures precise compatibility for maintenance, retrofit, or replacement projects.
• Two‑pole design disconnects both hot conductors simultaneously, improving safety during trips or servicing.
• With a 10kA interrupting capacity, this breaker is well suited for applications where higher fault currents are a consideration.
• Durable construction supports repeated operation in both commercial and light industrial environments.

Ideal use cases

• Panel maintenance: swap in a direct match for existing 240V, 2‑pole circuits to restore protection quickly.
• Retrofit projects: upgrade or replace aging breakers in panels that accept bolt‑on style units.
• Commercial/industrial feeders and motors: provide dependable 90A protection for energy‑intensive loads.

Compatibility and installation notes

Important: Confirm fit and ratings before ordering. The part number QJ22B090 is the best reference for compatibility, ensuring correct bus connections and safeguarding against mismatched specs.

Practical tips for a smooth installation: power down the panel and follow all safety protocols, use the correct mounting torque prescribed for bolt‑on breakers in your panel, and verify that your enclosure accepts QJ family devices before proceeding.