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Bussmann CB221-30 Type I ATC Automotive Circuit Breaker 30 Amp

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

CB221-30
08/02/2036 3:13 AM
Sale Price

$4.50

In Stock (10)

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Usually delivered within 2 days

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Product Details

The Bussmann CB221-30 is a Type I automotive circuit breaker designed to provide reliable overcurrent protection for 12-volt DC automotive electrical systems. This thermally-activated circuit breaker features an ATC fuse footprint, allowing it to be used as a direct replacement for standard ATC blade fuses in existing fuse blocks and panels.

Key Features:

  • 30 amp current rating for medium to high-draw circuits
  • Type I automatic reset design - resets automatically when fault is cleared and device cools
  • ATC blade fuse footprint for easy installation in standard fuse holders
  • Thermal trip mechanism provides consistent, reliable protection
  • Resettable design eliminates the need for fuse replacement
  • Rated for 12V DC automotive applications
  • Compact single-pack design

Ideal for protecting power windows, cooling fans, audio systems, lighting circuits, and other automotive accessories. The automatic reset feature makes this circuit breaker perfect for applications where temporary overloads may occur, eliminating the inconvenience and cost of replacing blown fuses.

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