300A 48V red 4 way copper busbar box with M8 terminals
£15.00
Sale price
£15.00
Regular price
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300A 48V red 4 way copper busbar box with M8 terminals
£15.00
Sale price
£15.00
Regular price
Shipping calculated at checkout.
BBR-300
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Description
Solarika BBR-300 Battery Relay
High-Current 300A Bi-Directional Split Charge Isolator
The Solarika BBR-300 is a heavy-duty 12V battery booster and isolation relay engineered for demanding dual-battery environments. Whether you are managing a winch, a high-output inverter, or a split-charging leisure battery system in a motorhome or boat, the BBR-300 provides seamless power management without the voltage drop associated with traditional diode isolators.
RELIABILITY: Built to meet or exceed OEM specifications with silver alloy contacts and an IP65-rated housing for long-lasting performance in harsh environments.
Key Features
- ✔ 300A Continuous handling capacity
- ✔ Bi-Directional Sensing for dual charging
- ✔ Zero Voltage Drop mechanical switching
- ✔ IP65 Weatherproof sealed construction
- ✔ Surge protected electronics
Technical Specs
| Nominal Voltage | 12V DC |
| Continuous Current | 300A |
| Peak Current (Surge) | 1000A |
| Engage Voltage | 13.3V DC |
| Disengage Voltage | 12.8V DC |
| Terminals | M8 Stainless Studs |
Compatibility / Fitment Guide
| Application | System Type | Notes |
|---|---|---|
| Marine / Boats | 12V Outboard/Inboard | Corrosion resistant terminals. |
| RV / Motorhomes | Split Charge System | Ideal for T4/T5/T6 and Sprinters. |
| Solar Off-Grid | Battery Bank Isolation | Supports Bi-Directional solar charging. |
OEM Cross Reference
| Manufacturer | Part Number Reference |
| RV Custom Products | EB300 |
| Intellitec (Equiv) | 00-00507-000 / 00-00507-512 |
| KeyLine Chargers | VSR-300-PRO |
Installation Guide
Mount the relay as close as possible to the primary battery. Connect the primary battery to the "Main" stud and the auxiliary battery to the "Aux" stud. Ensure a solid ground connection for the sensing wire. For 300A loads, use minimum 50mm² (0AWG) copper cabling to prevent overheating. Professional installation is heavily recommended.
Questions & Answers
Is this a genuine original part?
This is a premium Solarika high-current replacement part, manufactured to meet or exceed original equipment (OE) standards for heavy-duty power management.
How do I know if it is compatible?
Check your current relay's amperage and voltage. If you require a 12V system with a draw up to 300A continuous, the BBR-300 is the correct high-performance upgrade.
Can this relay be used with Lithium (LiFePO4) batteries?
Yes. Because it is a mechanical relay with bi-directional sensing, it will work with Lithium banks provided your charging source (alternator/solar) is regulated for Lithium voltages.
Note: Please verify your original part number and system amperage requirements against the references above before purchasing. Distributed by Solarika.co.uk.
Return policy
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.