Siemens | QJ3B07000S01 | Circuit Breaker | 70A | 3-Pole | 240V | Bolt-On

Discover precise, reliable protection with the Siemens QJ3B07000S01 Circuit Breaker. Engineered for maintenance, retrofit, and replacement tasks where exact specifications matter, this 70A, 3-pole unit delivers dependable performance in 240V three-phase systems. The bolt-on design simplifies installation in compatible Siemens panels, helping you minimize downtime and keep critical equipment protected.

Key specifications at a glance

• Amperage: 70A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part reference: QJ3B07000S01
• Best use: Maintenance, retrofit, and replacement where matching specs are required
• Important note: Confirm fit and ratings before ordering; the part number is the best reference for compatibility

Why choose this Siemens breaker? It’s designed to protect three-phase circuits with a clear emphasis on compatibility and dependable operation in demanding environments. The 70A rating is ideal for mid-to-high-demand equipment racks, while the 3-pole configuration ensures balanced protection across all phases. The 240V rating aligns with standard commercial and industrial distribution, making it a practical choice for panel upgrades, service replacements, or retrofit projects.

Ideal use cases

• Upgrading an electrical panel to support new equipment with a 70A draw
• Replacing a worn or outdated breaker in a 3-phase, 240V system
• Retrofit projects where exact QJ-series specs are required for seamless compatibility

Practical tips for installation and selection

• Before ordering, verify that your panel accepts bolt-on, 3-pole, 240V breakers and that the QJ3B07000S01 is the correct match for your system’s ratings.
• Use the part number QJ3B07000S01 as the primary compatibility reference to avoid mismatches during replacement or retrofit.
• For a clean, reliable installation, pair this breaker with compatible Siemens panels designed for bolt-on protection and follow all local electrical codes during installation.

With the Siemens QJ3B07000S01 Circuit Breaker, you gain targeted, dependable protection for your three-phase distribution—backed by Siemens’ long-standing engineering expertise. It’s the practical, precise choice when your project demands exact specifications, straightforward compatibility, and robust performance.