Siemens | QJH23B090A02 | Circuit Breaker | 90A | 3-Pole | 240V | Bolt-On

Siemens QJH23B090A02 is a 90A, 3-Pole, 240V circuit breaker designed for bolt-on installation. Built for maintenance, retrofit, and replacement projects where precise specifications matter, this unit delivers dependable protection for three-phase electrical systems while matching original equipment requirements.

• Amperage: 90 A
• Poles: 3-Pole
• Voltage: 240 V
• Mounting: Bolt-On

Distinctive value for professionals

The QJH23B090A02 is more than a generic replacement. Its bolt-on design provides secure, vibration-resistant mounting in compatible Siemens panels, helping maintain electrical integrity in demanding environments. By aligning with Siemens’ QJH series specifications, it offers a reliable, drop-in upgrade path that minimizes modification and downtime during maintenance or retrofit projects.

Ideal use cases

Designed for scenarios where a robust 90A, 240V three-phase protection is needed, this breaker is well-suited for:

• Industrial motor circuits and drive systems in manufacturing floors
• HVAC and processing equipment powered by 240V three-phase supply
• Panel retrofits and spare-part stock for facilities with legacy Siemens gear

Why it solves real problems

For technicians and facilities managers, selecting the exact part number QJH23B090A02 minimizes compatibility guesswork. A correct match ensures proper trip characteristics, reliable protection, and easier maintenance planning—reducing the risk of mismatched replacements that could disrupt operations.

Fit, verify, and install with confidence

Notes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility. Use this breaker in strictly compatible 3-Pole, 240V systems that require bolt-on mounting to maintain circuit protection for heavy-load, three-phase equipment.