Victron BCD 402 Combiner Diode - 2 Batteries - 40A BCD402

The BCD 402 Combiner Diode is an essential component for marine and boating enthusiasts seeking reliable and uninterrupted DC power supply to their critical onboard systems. Designed to efficiently manage multiple battery sources, this combiner diode ensures your vital equipment remains powered even in the event of a battery failure.

Key Features

• Two-Battery Configuration: Supports up to two batteries, allowing for flexible power management on your vessel.
• High Current Capacity: Rated at 40A, suitable for demanding marine applications.
• Low Voltage Drop: Utilizes Schottky diodes to minimize energy loss, with a voltage drop of approximately 0.3 V at low current and 0.45 V at rated output.
• Reliable Power Supply: Ensures continuous DC power to mission-critical equipment by preventing power interruption if one battery fails.
• Durable Construction: Built to withstand the harsh marine environment.

Technical Specifications

Specification	Details
Model	BCD402
Battery Support	2 Batteries
Current Rating	40A
Voltage Drop (Low Current)	≈0.3 V
Voltage Drop (Rated Output)	≈0.45 V
Diode Type	Schottky

Benefits for Marine Applications

In the marine environment, maintaining a stable and reliable power supply is crucial for the safe and efficient operation of your vessel. The BCD 402 Combiner Diode offers several advantages:

• Enhanced Reliability: Automatically manages power sources to ensure critical systems remain operational.
• Energy Efficiency: Reduced voltage drop means less energy is wasted, extending the life of your batteries.
• Ease of Use: Simple installation and maintenance make it an ideal choice for marine applications.
• Safety: Protects against power interruptions caused by battery failure, ensuring uninterrupted operation of essential equipment.

Installation Instructions

To install the BCD 402 Combiner Diode on your marine vessel:

1. Ensure the surface where the combiner will be mounted is non-flammable and can withstand heat generated during operation.
2. Disconnect all power sources before beginning installation.
3. Mount the combiner diode securely using the provided hardware, ensuring proper ventilation to dissipate heat.
4. Connect the positive terminals of both batteries to the designated inputs on the combiner.
5. Connect the output terminal to your mission-critical equipment.
6. Double-check all connections for security and polarity before restoring power.

For detailed installation guidance, please refer to the Quick Guide (pdf).

Safety Warnings

• Hot Surface: The combiner diode surface can become hot during operation. Always handle with care.
• Mounting: Install the BCD 402 Combiner Diode only on a non-flammable surface to prevent fire hazards.
• Electrical Safety: Ensure all connections are secure and polarity is correct to avoid electrical shorts or damage to equipment.

Support and Resources

For any returns, repairs, or support issues related to the BCD 402 Combiner Diode, please contact your authorized dealer. Our support team is ready to assist you with any questions or concerns to ensure your marine systems operate smoothly.

Download the Quick Guide (pdf) for more information on setup and troubleshooting.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.