The Blue Sea 2300-series busbars provide a common electrical connection for several conductors, often found in RV battery and low-voltage distribution work. The 2300, 2301, 2302 and 2303 are not four names for the same piece: the terminal counts, lengths and cover arrangements differ. Use the model number from the original equipment and the actual cable connections to identify the replacement.
Identify the number of terminals on the common bar
A common busbar electrically joins all its terminals. In an RV 12V system it can serve an appropriately designed negative-return grouping or an independently protected positive distribution point. It does not itself contain fuses, switches or separate isolated circuits.
Listed with cover. One shared copper conductor; terminal symbols are conceptual, not a physical stud drawing.
No included cover. One shared copper conductor; terminal symbols are conceptual, not a physical stud drawing.
No included cover. One shared copper conductor; terminal symbols are conceptual, not a physical stud drawing.
No included cover. One shared copper conductor; terminal symbols are conceptual, not a physical stud drawing.
2300 vs 2301 vs 2302 vs 2303 busbars
| Model | Terminals | Listed length | Cover supplied |
|---|---|---|---|
| 2300-BSS | 10 | 5-7/8 in | Listed with cover |
| 2301-BSS | 10 | 6.1 in | No included cover |
| 2302-BSS | 20 | 9-1/4 in | No included cover |
| 2303-BSS | 4 | 5-7/8 in | No included cover |
These listings specify a tin-plated copper common bar mounted on a reinforced polycarbonate base. The rated voltage classes are 48V DC and 300V AC. The manufacturer describes the standard 2300-series maximum continuous current as 100A AC / 150A DC; do not confuse the total bar rating with a per-terminal allowance.
The 2300 is listed with a protective insulating cover, while the 2301, 2302 and 2303 listings do not include a cover. If your original assembly has an enclosure or terminal shield, compare the exact part number and required clearance before ordering.
Matching Blue Sea product photographs
Use the individual photos and part numbers to compare the bar with your existing equipment. These are exact-number listings on UsedRVParts. Check availability on each product page; used items can be viewed or collected by appointment in Kelowna.
Original Blue Sea specifications
For technical drawings and dimensional confirmation, see Blue Sea's 2300, 2301, 2302 and 2303 product references.