Siemens | QJ23B070 | Circuit Breaker | 3-Pole | 240V | 10kA | Bolt-On

Siemens QJ23B070 Circuit Breaker is a dependable 3-pole protection solution designed for demanding electrical panels. Built for maintenance, retrofit, and replacement projects, this bolt-on breaker delivers precise spec alignment when you need to preserve system reliability and safety.

• Pole configuration: 3-Pole
• Nominal voltage: 240V
• Interrupting capacity: 10kA
• Mounting: Bolt-On
• Best reference for compatibility: Part number QJ23B070

Notes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility, ensuring the breaker matches your Siemens panel’s bolt-on 3-pole footprint and 240V, 10kA protection profile.

Why this Siemens breaker stands out

• Precise compatibility for retrofit and replacements: When your panel calls for exact Siemens specifications, QJ23B070 provides a seamless fit with existing busbars and mounting brackets.
• Secure bolt-on installation: The bolt-on design offers a robust, vibration-resistant connection that’s easier to service in field upgrades or routine maintenance.
• Trusted protection at the right rating: 240V operation with a 10kA interrupting capacity helps safeguard circuits against short circuits and overloads in commercial and light industrial environments.

Ideal for professionals performing panel upgrades, equipment retrofits, or replacements where maintaining the correct trip characteristics and disconnect reliability matters most. This breaker is well-suited for service panels that require a three-pole, 240V protection device with a solid industrial-grade build and straightforward bolt-on mounting.

Practical use cases include updating legacy electrical systems in manufacturing lines, refurbishing control panels in facilities, or stocking a precise spare part for quick-turn maintenance. By using the QJ23B070, you ensure continuity of protection without compromising panel design or electrical codes.