Eaton CB285P-25 Marine Rated Circuit Breaker - 3 kAIC
Part Number: CB285P-25
Quick Summary
The Eaton CB285P-25 marine rated circuit breaker protects 48 Vdc circuits in marine and offshore equipment. In harsh coastal environments, moisture, salt spray, and vibration threaten electrical protection; this unit's waterproof design and switchable operation help maintain uptime and safety. RoHS compliant and built for single-pole panel mounting, it offers regulatory alignment and straightforward installation. While specific CE or IP certifications aren’t listed, the rugged Bussmann series approach delivers dependable protection for automotive and marine DC applications. For engineering teams, this means faster integration, predictable fault isolation, and lower lifecycle costs by reducing nuisance trips and unplanned downtime. It also aligns with long-life, high-current protection needs in compact packages.
Product Information
Extended Description
CB285P-25 Eaton: Eaton Bussmann series C.B.285P marine rated circuit breaker, Switchable, 48 Vdc, 25A, 3 kAIC, Automotive, Type III, High amp, Single-pole, Waterproof
Product Name
Eaton Bussmann series CB285P marine rated circuit breaker
Catalog Number
CB285P-25
UPC
051712741088
Product Length/Depth
1.9 in
Product Height
2.91 in
Product Width
1.77 in
Product Weight
0.175 lb
Compliances
RoHS Compliant Contact factory
Amperage Rating
25 A
Interrupt rating
3 kAIC
Voltage rating
48 Vdc
Material
Waterproof
Number of poles
Single-pole
Packaging Type
Standard
Mounting Method
Panel
Special features
Switchable
Bussmann series full line retail catalog no. 5084
Bussmann series full line retail catalog no. 5084
Bussmann series Fuseology
Eaton Specification Sheet - CB285P-25
Feature: 25 A, 48 Vdc rating with a 3 kAIC interrupt capability; Business Impact: Protects sensitive DC circuits from overloads and fast-trips faults, reducing damage to wiring and connected equipment; Application: Ideal for 48 Vdc marine propulsion and auxiliary circuits where high interrupt capability is essential. Feature: Single-pole, switchable design; Business Impact: Allows easy isolation for maintenance and testing without removing the device from service; Application: Retrofit and panel installations in automotive and marine control systems. Feature: Waterproof housing and marine suitability; Business Impact: Withstands exposure to moisture, splash, and hostile environments, lowering corrosion risk and downtime; Application: Engine rooms, weather decks, and outdoor control panels. Feature: Panel mounting with compact footprint (length 1.9 in, height 2.91 in, width 1.77 in); Business Impact: Enables tight packaging and rapid field installation in existing panels; Application: retrofit projects and new builds with limited panel space. Feature: RoHS compliant; Business Impact: Supports regulatory compliance and supply chain sustainability; Application: meets procurement requirements for environmentally conscious programs. Feature: 1-pole, automotive Type III switchable options; Business Impact: Aligns with automotive and marine electrical standards, improving interchangeability and stock planning; Application: Vehicle-to-vessel electrical installations and automotive-grade DC protection scenarios.
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FAQs
CB285P-25 is designed for panel mounting and fits standard automotive/marine control panels. Begin by ensuring your circuit is within the 25 A rating and 48 Vdc range, then secure the unit with the panel screws and connect the conductors to the terminals. Verify the switchable function for maintenance and perform a functional test after installation to confirm proper interruption capability.
This breaker is ideal for protecting 48 Vdc circuits on marine equipment, including propulsion or auxiliary systems, due to its 25 A rating and 3 kAIC interrupt capability. Its single-pole design and waterproof construction make it a reliable solution for harsh marine environments where space and reliability are critical.
Key ratings include 25 A continuous current, a 3 kAIC interrupt rating, and a 48 Vdc voltage rating. The unit is single-pole and switchable, with RoHS compliance. These specs support dependable protection of low-voltage DC circuits in automotive and marine installations while enabling straightforward integration into panel assemblies.
Yes, the CB285P-25 is RoHS compliant, reducing restricted substances in its construction. This supports regulatory compliance for electronics procurement and simplifies disposal and recycling processes. If you require additional certifications beyond RoHS, consult the factory for the latest qualification data and any available CE or IP information.
The CB285P-25 features a waterproof housing and marine suitability, designed to resist moisture and salt exposure common on boats and offshore equipment. Its compact panel-mount form factor and switchable function facilitate quick maintenance, while the 25 A rating provides reliable protection for critical DC circuits without frequent nuisance trips.