BEP Battery Switch PRO 770 Double Pole 12/24V 400A - Double-pole battery disconnect

The BEP PRO INSTALLER Type 770 Double Pole battery switch with standard mounting offers double-pole battery isolation for maximum safety. With a 4-pole design, 4 x 10 mm terminals, and a 400 A current rating, it is ideal for professional marine applications.

Product features

• Double Pole (4-pole) - Separates both positive and negative leads for maximum safety
• 4x 10mm connectors - (3/8") for secure wiring of both poles
• 400A current rating - Suitable for demanding vehicle electrical systems
• STD assembly - Standard assembly for surface mounting and panel installation/assembly
• 12/24V voltage - Universally applicable (max 48V)
• On/Off switch - Clear switching positions for easy operation
• Compact design - 98 x 98 mm base area, 92 mm height
• BEP Quality - Premium manufacturer of marine electrical systems

Available versions

Double Pole - Double pole disconnect

Maximum safety: Completely disconnects both the positive and negative leads from the vehicle's electrical system.

Galvanic isolation: Prevents leakage currents across both poles.

Maximum protection: Ideal for installations with the highest security requirements.

4-pole version

4x 10mm terminals: Generous terminals (3/8") for both poles - positive and negative.

400A current rating: Suitable for demanding electrical systems and high loads.

12/24V voltage: Universally applicable, max. 48V.

STD assembly

Surface mounting: For flexible placement in the engine compartment or other locations.

Panel installation and assembly: Versatile mounting options for professional installation.

Compact design: 98 x 98 mm base area, 92 mm height.

On/Off switch

Easy to use: Clear on/off switching without complicated positions.

Position On: Battery fully connected to the vehicle's electrical system.

Position Off: Battery completely disconnected - both poles interrupted.

Application areas

• Sailing yachts and motorboats with the highest safety requirements
• Installations requiring galvanic isolation
• Professional marine electrics with double pole requirements
• Motorhomes and camping
• Commercial vehicles
• All applications with 12V or 24V on-board voltage
• Shipyards and service companies

Advantages at a glance

Double Pole: Separates both positive and negative leads for maximum safety.

4-pole: Separate connections for both poles.

Galvanic isolation: Prevents leakage currents across both poles.

Heavy-duty: 400A for demanding applications.

Professional: BEP PRO INSTALLER quality.

💡 Tip

The double pole switch is particularly important when you require complete galvanic isolation. This is recommended, for example, when connected to shore power or during extended periods moored in marinas. Install the battery switch in an easily accessible location. Always switch the main switch to "Off" when the boat is not in use for an extended period. Ensure that both positive and negative leads are connected correctly. Use appropriately sized cable lugs for 10mm bolts. Clearly label the connections (positive/negative). Combine with BEP PRO INSTALLER busbars and fuse holders.

⚠️ Important

When installing, ensure correct polarity and use adequately sized cables (rated for at least 400A). The switch should be installed as close to the battery as possible. Tighten all connections securely to avoid contact resistance. Never switch off the main switch while the engine is running – this can damage the alternator and other electrical components. Ensure all electrical consumers are switched off before operating the main switch. Double-pole switches require both positive and negative leads to be connected. Regularly check the switch's function and condition. Observe the maximum voltage of 48V.

Ideal for

• Boat owners with the highest safety requirements
• Installations requiring galvanic isolation
• Professional installations with the BEP PRO INSTALLER system
• Shore power connection with disconnection requirement
• Extended periods of mooring in marinas
• Workshops and service centers

Scope of delivery

You will receive a BEP battery switch PRO 770 Double Pole 12/24V 400A 4-pole with STD mounting (BP770-DP) in a self-service pack - ready for installation in your vehicle electrical system.

BEP PRO INSTALLER Quality

The BEP PRO 770 Double Pole battery switch combines the highest quality with maximum safety - for reliable double-pole battery isolation in marine electrical systems.