Eaton CBT-30N automotive circuit breaker - RoHS Compliant
Part Number: CBT-30N
Quick Summary
Eaton CBT-30N automotive circuit breaker protects heavy-duty vehicle circuits from overload. Engineers often wrestle with nuisance trips and tight installation space that complicate maintenance. This unit carries RoHS compliance, and Eaton provides certs on request to meet automotive regulatory needs. Its compact 4.5 in length combined with a 30 A rating delivers reliable protection while reducing downtime and service costs. Compatible with Bussmann series protection networks, the CBT-30N supports scalable fleet reliability and simplified stocking for procurement teams. With straightforward mounting and standard dimensions, installation is quick for technicians and reduces commissioning time. Field data shows consistent trip characteristics and repeatable performance across typical 12 V automotive electrical systems.
Product Information
Extended Description
CBT-30N Eaton: Eaton Bussmann series C.B.T-N automotive circuit breaker, 30A, Type II
Product Name
Eaton Bussmann series CBT-N automotive circuit breaker
Catalog Number
CBT-30N
UPC
051712601061
Product Length/Depth
4.5 in
Product Height
3.7 in
Product Width
1.75 in
Product Weight
0.121 lb
Compliances
Contact factory RoHS Compliant
Certifications
Contact Manufacturer
Amperage Rating
30 A
Bussmann series 4-foot automotive planogram no.10730
CBT-30N~TYPE 2 BREAKER - NAVISTAR TRUCKS -30 AMP
CBT-30N~TYPE 2 BREAKER - NAVISTAR TRUCKS -30 AMP
Bussmann series Fuseology
Eaton Specification Sheet - CBT-30N
The CBT-30N is a 30 A Type II automotive circuit breaker, delivering precise overcurrent protection for 12 V vehicle circuits and reducing the incidence of nuisance trips in demanding environments. This translates to lower maintenance costs and higher fleet uptime, especially in heavy-duty applications such as Navistar trucks and other commercial vehicle fleets. Its Type II protection provides faster, coordinated response within Bussmann series protection blocks, improving circuit selectivity and limiting collateral damage in adjacent circuits. The compact form factor—4.5 in long, 3.7 in high, and 1.75 in wide—fits common harness enclosures and minimizes required space in crowded engine compartments, while the light weight of 0.121 lb eases handling during installation. RoHS compliance supports environmentally responsible manufacturing and satisfices supplier audits for automotive OEMs. The UPC 051712601061 simplifies procurement and stock-keeping, and the availability of the Eaton specification sheet and catalogs aids quick ordering and design-in. For installers, the combination of standard dimensions and clear part numbering reduces mis-selection and rework, accelerating field deployment across diverse vehicle platforms.
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FAQs
CBT-30N is designed for 12 V automotive circuits in heavy-duty vehicles. It uses standard Bussmann series form factors, with 4.5 in length, 3.7 in height, and 1.75 in width, enabling straightforward replacement in common engine compartments and protection blocks. Installers should reference the Eaton spec sheet for mounting instructions and ensure proper enclosure compatibility.
CBT-30N has a 30 A amperage rating and Type II trip characteristics, suited for automotive overcurrent protection. Physical dimensions are 4.5 in L, 3.7 in H, 1.75 in W, and the unit weighs 0.121 lb. These specs support compact integration in standard 12 V vehicle harnesses.
Yes, CBT-30N is RoHS compliant. Certification details are available from Eaton upon request, enabling OEMs to satisfy regulatory and supplier-qualification requirements during audits.
Refer to Eaton sources: the Eaton Specification Sheet for CBT-30N at https://www.eaton.com/us/en-us/skuPage.CBT-30N.pdf and the Bussmann catalog materials at http://www.eaton.com/...bus-ele-cat-1007-full-line-catalog-complete.pdf or https://www.eaton.com/content/dam/eaton/products/electrical-circuit-protection/fuses/bussmann-series-catalogs/bus-ele-cat-1007-full-line-catalog-complete.pdf. For planograms, see Bussmann series 4-foot automotive planogram no.10730 at https://www.eaton.com/content/dam/eaton/products/electrical-circuit-protection/fuses/retail-product-profiles/bus-ele-pp-10730-pog-auto-4ft.pdf.
Select the CBT-30N within Bussmann series protection networks that match your 12 V system design, ensuring space for 4.5 in L Ă— 3.7 in H Ă— 1.75 in W devices. Use the provided UPC for procurement and verify compatibility with Navistar and similar truck platforms. Review the Eaton datasheet for mounting instructions, electrical ratings, and regulatory notes to minimize rework and optimize maintenance intervals.