Zinsco | QB2100 | Circuit Breaker | 100A | 2-Pole | 240V | Bolt-On

Introducing the Zinsco QB2100 Circuit Breaker—100A, 2-Pole, 240V, Bolt-On. This unit is designed for maintenance, retrofit, and replacement projects where exact specs matter and reliable overcurrent protection is essential.

Why choose the Zinsco QB2100? It blends a bolt-on mounting for a secure, durable connection with a precise 100-amp, 2-pole, 240-volt configuration tailored for Zinsco panels. The part number QB2100 is your best reference for compatibility, helping you avoid mismatches and return circuits to service quickly.

• Amperage and configuration: 100A, 2-Pole, 240V for demanding residential or light commercial circuits.
• Bolt-On mounting: A solid, field-serviceable connection that resists vibration and arcing concerns common in loose-fit breaker mounts.
• Clear identification: Part number QB2100 ensures you’re selecting the exact replacement for your panel’s specifications.
• Versatile use cases: Ideal for routine maintenance, panel retrofits, and replacement scenarios where matching specs is critical.

Ideal for: Electricians performing panel maintenance, homeowners upgrading load distribution, and facilities managers safeguarding critical circuits with a trusted Zinsco solution.

Compatibility and installation notes: Confirm fit and ratings before ordering. Use the QB2100 reference to verify compatibility with your Zinsco panel model and ensure the 100A, 2-pole, 240V bolt-on configuration matches your system requirements.

In short, the Zinsco QB2100 Circuit Breaker delivers dependable protection for 100-amp circuits in 240V service, with a bolt-on design that helps ensure a secure, long-lasting connection in supported panels. When ordering, rely on the QB2100 part number as the definitive compatibility guide to streamline your replacement or retrofit project.