2pcs 4 Stud Busbar Bus Bar Power Distribution M8 M10 Battery Terminal Distribution Block Marine Bus Bar, Automotive 12V 250A
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SKU: 14:193#M10
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Conversions Tech 4-Post Power Distribution Block — M8/M10 High-Current Bus Bar, 250A 48V DC
The Conversions Tech 4-Post Power Distribution Block (Model M8/M10) is a durable, high-current junction solution designed to safely manage and distribute power in automotive, RV, marine, and industrial systems. Constructed from ABS, zinc alloy, and nickel-plated brass, it provides superior conductivity, heat resistance, and corrosion protection for long-lasting performance even in demanding environments.
Engineered for reliability, this high-current bus bar features four heavy-duty terminals (M8/M10 studs) rated at 250A total with a maximum voltage of 48V DC. It allows multiple wire harnesses to connect at a single point, keeping your power distribution clean, organized, and accessible.
Key Features
- High Current Capacity: Rated for 250A total load and 62.5A per stud — ideal for high-power circuits and battery banks.
- Dual Stud Sizes (M8/M10): Supports multiple cable terminals and heavy-duty ring lugs for flexible installation.
- Durable Construction: Made with ABS flame-retardant housing and nickel-plated brass contacts for strength and corrosion resistance.
- Auxiliary Terminals: Includes secondary screw terminals rated up to 20A for auxiliary connections.
- Superior Conductivity: Nickel-plated brass ensures consistent electrical flow and low resistance under high loads.
- Compact, Organized Design: Keeps multiple wire harnesses neatly grouped for simplified maintenance and routing.
- Corrosion Resistant: Stainless steel hardware and nickel plating provide protection in marine and humid environments.
- 48V DC Rating: Designed for automotive, marine, and low-voltage DC systems.
- Universal Application: Suitable for RVs, trucks, boats, yachts, off-grid systems, and custom automotive builds.
- CE & RoHS Certified: Fully compliant with international safety and environmental standards.
Technical Specifications
| Model | M8 / M10 |
| Type | 4-Post Power Distribution Block / Bus Bar |
| Rated Voltage | 48V DC |
| Rated Current (Total) | 250A |
| Rated Current (Per Stud) | 62.5A |
| Auxiliary Terminal Current | 20A |
| Material | ABS Housing, Zinc Alloy, Nickel-Plated Brass Contacts |
| Dimensions | 170 × 44 × 33 mm (6.69" × 1.73" × 1.30") |
| Color Options | Black and Red |
| Certifications | CE • RoHS |
| Origin | Mainland China |
Applications
- Automotive and RV battery systems
- Marine and yacht power distribution
- Off-grid solar and battery banks
- Industrial and mobile power systems
- Heavy equipment and truck power circuits
The Conversions Tech M8/M10 High-Current Bus Bar provides a professional-grade solution for clean and efficient power management. Its durable construction and superior conductivity make it an essential component for any high-current wiring system.
FAQs (Click to Expand)
1. What is the total current capacity of this bus bar?
The bus bar supports up to 250A total current and 62.5A per stud under normal operation.
2. What is the rated voltage?
It’s rated for use up to 48V DC, suitable for low-voltage DC systems such as automotive and marine power.
3. What materials are used in construction?
The body is made of flame-retardant ABS, with nickel-plated brass contacts and stainless steel hardware for durability and conductivity.
4. Can I use this in a marine environment?
Yes. It’s designed with corrosion-resistant materials, ideal for boats, yachts, and other marine power systems.
5. What is the purpose of the auxiliary terminals?
The auxiliary screw terminals (rated at 20A) allow you to connect smaller wires for sensors, lights, or auxiliary circuits.
6. How many main posts does it have?
It features four heavy-duty posts (M8 or M10), each capable of carrying high current loads for power distribution.
7. Is it compatible with battery cables?
Yes. It’s ideal for connecting battery cables, inverter leads, and heavy-gauge power wires.
8. What are the physical dimensions?
The block measures 170 × 44 × 33 mm (6.69" × 1.73" × 1.30"), compact enough for RV and vehicle installations.
9. Is customization available?
Yes. Conversions Tech offers OEM labeling and bulk packaging customization for large projects or distribution partners.
10. Why choose Conversions Tech power blocks?
Conversions Tech components are precision-built using high-grade conductive alloys and UL-compliant insulation materials. They ensure safe, efficient, and organized power management across automotive, marine, and renewable applications.
Why Choose Conversions Tech
Conversions Tech delivers premium-grade power distribution and electrical connectivity solutions designed for demanding applications. Our bus bars, lugs, and terminal blocks are engineered for long-term reliability, maximum conductivity, and compliance with CE and RoHS standards.
4 Reasons Pros Buy Direct from Conversions Tech
Headquartered in business-friendly Wyoming, we design, test, and ship every product from inside the United States—delivering genuine “Made-for-America” quality without the big-box markup.
Our in-house team owns every CAD file, mold, and QA station behind our weatherproof boxes, conduit bodies, and power inverters. Vertical control means tighter tolerances, UL-listed safety, and up to 30 % lower cost than private-label imports.
Thousands of SKUs sit ready to go. Orders placed by 2 p.m. ship the same day, keeping contractors, OEMs, and distributors on schedule.
Need a torque spec or an OEM quote at dawn? You’ll speak directly with the Conversions Tech engineering desk—not a script reader—for instant answers, custom kitting, and private-label options.
Bottom line: For rugged, code-compliant electrical solutions shipped fast from a trusted U.S. source, choose Conversions Tech and build it right the first time.
