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Circuit Breaker

Zinsco | QB2430100 | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

★★★★★
Amperes 100
Poles 3
Voltage 240
Product Type Circuit Breaker
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Manufacturer :Zinsco
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $510.00
Sale price $510.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
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FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Allen-Bradley 1766-L32BXBA - Micrologix Controller 1766L32Bxba - Micrologix Controller 1766L32Bxba

Zinsco | QB2430100 | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Regular price $510.00
Sale price $510.00 Regular price
Unit price
Product description
Shipping

Meet the Zinsco QB2430100 Circuit Breaker — a purpose-built 100A, 3-Pole, 240V bolt-on breaker designed to deliver dependable protection in compatible panels. Built for maintenance, retrofit, and replacement projects, this unit follows the exact specifications you need when updating an electrical distribution system.

  • Amperage: 100A
  • Poles: 3-Pole
  • Voltage: 240V
  • Mounting: Bolt-On
  • Part Number: QB2430100

Why this matters: In essential electrical work, matching the panel’s design and current rating is crucial for safety and performance. The QB2430100 from Zinsco is explicitly suited for maintenance, retrofit, and replacement tasks where a 3-pole, 240V solution with a secure bolt-on mount is required. This isn’t a generic part—it’s a genuine component chosen to align with your panel’s original architecture and protection scheme.

Compatibility reminder: Confirm fit and ratings before ordering. The part number QB2430100 is the best reference for compatibility with Zinsco panels and similar systems.

  • Ideal for electricians performing panel retrofits or replacements in residential or light commercial settings that require a 3-pole, 240V protection device.
  • Great for multi-wire branch circuits where simultaneous disconnection across all poles is essential for safety and code compliance.
  • Works in applications where bolt-on mounting is standard, providing a secure, vibration-resistant connection.

Installation considerations: This bolt-on breaker should be installed by a qualified electrician. Ensure the hosting panel accepts bolt-on style breakers and that the panel’s labeling and ratings align with the QB2430100 before proceeding. Proper tooling and torque on mounting hardware are important to maintain a reliable, long-lasting connection.

In practice, the Zinsco QB2430100 delivers precise protection for 100A circuits across three poles at 240V, making it a focused, reliable choice for panel upgrades, replacements, or new retrofits where its exact specifications are required. Add it to your cart and be ready for your next compatible installation or service task.

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Exactly what we needed for a shutdown replacement. No surprises.

Plant · Shutdown

Verified

Good communication and clear updates while the order was processed.

Project · Coordination

Verified

Looks and feels like a proper industrial-grade part. Works as expected.

Service · Field install

Fast industrial sourcing support

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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

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