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Bussmann CBC40B 40A Type I Heavy Duty Automotive Circuit Breaker with Stud Terminals

Manufacturer

Bussmann

<h3>Trusted Circuit Protection Since the Early 20th Century</h3><p>Bussmann is a division of Eaton that manufactures circuit protection products for the electrical, electronic, and automotive industries, with manufacturing facilities in three domestic and six international locations and approximately 3,000 team members worldwide. With nearly a 100-year history of innovation, the Bussmann division has set the standard for circuit protection in the global market.</p><p>From humble beginnings to becoming a globally recognized name, Bussmann has built its reputation on delivering reliable circuit protection solutions that safeguard electrical systems across countless applications. The brand's commitment to engineering excellence has made it a go-to choice for technicians, fleet managers, and DIY enthusiasts who demand components that protect critical electrical circuits from overload and short-circuit conditions.</p><h3>Comprehensive Electrical Protection Solutions</h3><p>Bussmann's product portfolio spans the full spectrum of circuit protection needs. The brand's <a href="/1987-bussmann-fuse-2676">fuses</a> represent decades of engineering refinement, offering precise overcurrent protection for vehicles ranging from passenger cars to heavy-duty commercial trucks. These fuses are designed to fail predictably and safely when electrical loads exceed safe thresholds, preventing damage to expensive electronic components and wiring harnesses.</p><p>Beyond traditional fuse applications, Bussmann's <a href="/1987-bussmann-circuit-breaker-2504">circuit breakers</a> provide resettable protection for auxiliary circuits and accessory installations. Bussmann have a 90-year history of innovation setting the standard for circuit protection in the global market and the fuses Bussmann manufacture are globally recognised for their reliability and high levels of performance. For commercial vehicle applications, the brand's <a href="/1987-bussmann-roof-marker-light-10052">roof marker lights</a> combine safety compliance with durable construction designed to withstand harsh operating environments.</p><h3>Power Management for Modern Vehicles</h3><p>As vehicles have become increasingly electrified and power-hungry, reliable energy storage has become critical. Bussmann's <a href="/1987-bussmann-vehicle-battery-2476">vehicle batteries</a> reflect the brand's understanding of modern automotive electrical demands, delivering consistent cranking power and reserve capacity. The brand also manufactures specialized components like <a href="/1987-bussmann-automatic-transmission-control-solenoid-7752">automatic transmission control solenoids</a> that demonstrate Bussmann's expansion beyond traditional circuit protection into broader automotive electrical systems.</p><h3>Engineering Excellence Meets Real-World Durability</h3><p>What separates Bussmann from commodity circuit protection products is the brand's focus on engineering for real-world conditions. Products undergo rigorous testing for vibration resistance, temperature cycling, and corrosion exposure—the exact challenges faced in automotive environments. This attention to failure modes and environmental factors ensures Bussmann components perform reliably whether installed in a daily driver or a work truck operating in extreme conditions. The brand's extensive product catalog includes solutions for virtually every circuit protection scenario, from miniature blade fuses for modern fuse panels to heavy-duty breakers for auxiliary power systems.</p>

Part Number

CBC40B
05/31/2036 9:44 PM
Sale Price

$8.25

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Bussmann CBC40B is a Type I heavy-duty automotive circuit breaker designed for reliable overcurrent protection in 12-volt DC electrical systems. This automatic reset circuit breaker features a 40-amp rating and rugged construction suitable for demanding automotive, marine, and powersports applications.

Key Features:

  • 40-amp rating at 14 volts DC for robust circuit protection
  • 10-32 threaded stud terminals for secure, high-current connections
  • Automatic reset functionality—breaker automatically resets when fault is cleared and device cools
  • 90-degree right-angle metal construction for space-efficient mounting
  • Includes crosswise mounting bracket for versatile installation options
  • Type I heavy-duty design built for harsh automotive environments

This circuit breaker provides resettable protection without the need for fuse replacement, making it ideal for auxiliary lighting, winches, audio systems, and other high-current accessories. The automatic reset feature allows the breaker to trip during overload conditions and automatically restore power once the fault is cleared, eliminating the need for manual intervention or fuse replacement in most situations.

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