Blue Sea Systems 2303 - 150A DC Busbar, Four 1/4-20 Studs
Blue Sea Systems 2303 - 150A DC Busbar, Four 1/4-20 Studs
Blue Sea Systems
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Blue Sea Systems 2303 - Common Busbar, 150A DC and Four 1/4-20 Studs
The Blue Sea Systems 2303 common busbar provides four 1/4-20 terminal studs for organizing positive distribution, negative return connections or AC grounding conductors in the appropriate installation. Rated for 150A DC or 130A AC continuous current, it uses tin-plated copper on a reinforced polycarbonate base. Its 5.875-inch length and 5.25-inch mounting centers help you check the physical fit before ordering, while the stud layout provides a defined connection point for compatible cable terminals.
Part Specifications
- Part Number: 2303
- Component: Common busbar
- Terminal connections: Four 1/4-20 studs
- DC continuous current rating: 150A
- AC continuous current rating: 130A
- Maximum DC voltage: 48V
- Maximum AC voltage: 300V
- Bus material: Tin-plated copper, CDA 110 / UNS11000
- Base material: Reinforced polycarbonate
- Length: 5.875 inches
- Mounting centers: 5.25 inches
- Mounting screw size: #10 (M5)
Confirm Fitment Before Ordering
Use the parts diagrams available on our website to help identify the correct components. Alternatively, send us your engine model and serial number by email, text or live chat, along with your electrical system voltage, current requirements, cable terminal sizes and mounting dimensions, and we will help confirm suitability before ordering. Select the busbar for its intended role in the installation.
Additional Information
- Vendor: Blue Sea Systems
- Part Number: 2303
For a matching accessory, see the Blue Sea Systems 2715 common busbar cover. Its catalog listing explicitly identifies compatibility with the 2303 and 2301 busbars.
Installation Notes
Refer to the applicable Blue Sea Systems installation instructions and vessel or vehicle service manual for connection, mounting and electrical-system requirements.
Frequently Asked Questions
Q: What is the Blue Sea Systems 2303 used for?
A: Its listed uses include positive distribution, collection of negative return wires or AC grounding connections, depending on the installation's designated electrical function.
Q: Is the 150A rating the same for AC and DC?
A: No. The continuous current rating is 150A for DC and 130A for AC. The respective maximum voltage ratings are 48V DC and 300V AC.
Q: What size are the terminal studs?
A: The busbar has four 1/4-20 terminal studs. Confirm that your cable terminals suit these connections.
Q: What mounting dimensions should I check?
A: The listed length is 5.875 inches, with 5.25-inch mounting centers. The base accepts #10 (M5) mounting screws.
Q: Which cover fits the Blue Sea 2303?
A: The separately listed Blue Sea Systems 2715 ABS cover identifies the 2303 as a compatible busbar.
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.