SKU: 35907336177

Blue Sea 250A 4x 5/16 Stud Busbar

Sale price$55.64 Regular price$61.82
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

Blue Sea 250A 4x 5/16 Stud BusbarProfessional 250A Power Distribution for Marine and Automotive Systems The Blue Sea 250A 4x 5 16 Stud Busbar is engineered to provide a robust and reliable central point for consolidating high amperage wiring in demanding electrical setups. Designed for use in boats, caravans, RVs, and off grid 4WD systems, this 250A busbar ensures efficient power distribution while maintaining a clean and organised installation. By collecting negative returns or

Professional 250A Power Distribution for Marine and Automotive Systems

The Blue Sea 250A 4x 5/16 Stud Busbar is engineered to provide a robust and reliable central point for consolidating high-amperage wiring in demanding electrical setups. Designed for use in boats, caravans, RVs, and off-grid 4WD systems, this 250A busbar ensures efficient power distribution while maintaining a clean and organised installation. By collecting negative returns or positive feeds into one heavy-duty location, it significantly reduces cable clutter, improves system safety, and simplifies future troubleshooting.

Superior Materials for Harsh Environments

In the marine and automotive environment, corrosion and vibration are the enemies of reliable electrical connections. Unlike generic grade products that may utilise brass or lower-grade alloys, this Blue Sea busbar is constructed from Tin-Plated Copper CDA 110 / UNS 11000. This premium material choice delivers exceptional conductivity to minimise voltage drop, while the tin plating offers superior resistance to corrosion, even in salt-mist prone coastal areas.

The base is manufactured from UL 94-V0 rated glass-reinforced thermoplastic, ensuring high heat resistance and structural durability. This fire-retardant material provides peace of mind, knowing your electrical system is built on a foundation designed to withstand high temperatures and tough conditions.

Secure High-Torque Connections

A standout feature of this range is the design of the terminal studs. The 5/16"-18 (Approx. M8) stainless steel studs are insert-moulded directly into the base. This intelligent engineering eliminates the need for a securing nut at the back, allowing you to apply high torque to the terminals without the risk of the stud spinning or loosening over time. This ensures excellent electrical contact and secure retention of heavy-duty cable lugs.

Versatile Application and Safety

Whether you are designing a negative busbar return for a large battery bank or a positive distribution hub, this unit is rated for continuous currents up to 250 Amperes. It is also suitable for modern energy systems, supporting up to 48V DC and 300V AC, making it future-proof for lithium battery upgrades and higher voltage solar arrays.

The raised bus design allows for easy wrench access when attaching multiple large cables to a single stud. Additionally, the recessed mounting holes are designed to prevent accidental electrical shorts to metal mounting surfaces, such as aluminium boat hulls or steel vehicle chassis.

Compact at approximately 149mm in length, this 4-stud configuration is perfect for tight electrical lockers or smaller battery boxes where space is at a premium but high capacity is still required.

Key Features

  • 250A Continuous Rating for heavy-duty power distribution
  • Tin-Plated Copper Bus provides maximum conductivity and corrosion resistance
  • 5/16"-18 (Approx. M8) Stainless Steel Studs allow for high-torque connections
  • UL 94-V0 Rated Base resists high heat and fire
  • Insert Moulded Studs eliminate the need for backing nuts
  • Rated for 48V DC and 300V AC systems
  • Recessed mounting holes preventing accidental shorts

Upgrade Your Electrical Safety

Ensure your electrical system is safe, efficient, and professional. Order the Blue Sea 250A 4x 5/16 Stud Busbar today to tidy up your wiring and ensure reliable power delivery for your next adventure.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35907336177

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4.6 ★★★★★
Based on 213 reviews
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A
Verified Purchase
Austin T.
Natrona Heights, US
★★★★★ 5
Secure and great fit
I gave this product a chance and it did not disappoint! I did not need to read any instructions for installation and was able to quickly and easily figure it out. Installation takes less than 5 minutes. Just align the mount to the top corner of your tesla screen and turn the dial to adjust the tightness. Once tightness is set, just test to see if it’s really fitted by wiggling it around to check for looseness. I like the fact that I can adjust the angles of the mount easily. My phone can be angles to be on top or side of the Tesla screen. When driving, my phone does not shake one bit. When it’s time to remove my phone, just give it a quick pull to detach and that’s it. The build quality is also very nice and I like the design of it overall. I think it’s a well thought out product. Definitely would recommend to friends and family with Teslas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2025
J
Verified Purchase
Jim Burgett
Fort Morgan, US
★★★★★ 4
Good mount but…
This is a solid mount for the Tesla monitor but the mounting points on the corner of screen caused my screen protector to bubble up. I had to return it unfortunately.
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Reviewed in the United States on January 4, 2026
M
Verified Purchase
Ms. Jfuller
Belleville, US
★★★★★ 5
Tesla 😋😉 jeep phone mount.
Bought this to go in my jeep, perfectly attached to the corner of the screen of the screen, the only down side is since my screen raises and lowers over time with the vibration of the jeep it does make the screen slide down. But the magnet holds the phone very well as long as it is aligned properly to the back of the phone. I know it say tesla mount but my choice of smart stereo for my jeep is not a flush mount, it sticks out and has a cd player in the deck. As well the screen raises and lowers for access to to the cd player. So perfect for my jeep.
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Reviewed in the United States on February 24, 2026
H
Verified Purchase
Himanshu Sukheja
Charlottesville, US
★★★★★ 5
Amazing MagSafe phone stand
I recently purchased this MagSafe car phone mount, and it has been a game-changer for my daily commutes. The installation was effortless—just snap it onto the air vent, and you’re good to go. What stands out the most is the strong MagSafe connection. My phone stays securely in place even on bumpy roads, and removing it is just as seamless. The minimalist design fits perfectly with my car’s interior, and it doesn’t block my view like other bulkier mounts. Another highlight is the 360-degree rotation feature, which makes adjusting the angle for navigation or hands-free calls incredibly easy. It’s sturdy, reliable, and eliminates the need for clamps or adhesives. Overall, this is a must-have for anyone who uses their phone for GPS or music while driving. Highly recommended for MagSafe-compatible phones!
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Reviewed in the United States on December 30, 2024
C
Verified Purchase
CML
Lexington, US
★★★★★ 5
Great Phone Mount
This is a great little phone mount! Simple and effective. I’ve been wanting something for when I am pulled over at a super charger to be on a call or watching something on my phone without holding it or putting it in the cup holder. Works super well with my MagSafe case although it does come with extra magnets as well in case you don’t have a MagSafe case. Highly recommend! Easily attaches to the screen, no sticky residue or risk of sun staining on the dash like other mounts.
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Reviewed in the United States on July 2, 2025

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