BEP Marine 721 Heavy-Duty Battery Selector Switch, 350A, 1-2-Both-Off – RV Parts Giant
    BEP Marine 721 Heavy-Duty Battery Selector Switch, 350A, 1-2-Both-Off – RV Parts Giant
BEP Marine 721 Heavy-Duty Battery Selector Switch, 350A, 1-2-Both-Off – RV Parts Giant

BEP Marine 721 Heavy-Duty Battery Selector Switch, 350A, 1-2-Both-Off

$74.99
$74.99
$113.99
✓ Free Shipping  ·  ✓ Free 30-Day Returns
Prepaid return label, no restocking fee. Details

Manage two battery banks safely and conveniently with the BEP Marine 721 Heavy-Duty Battery Selector Switch. Its four-position rotary control lets you select Battery 1, Battery 2, both batteries in parallel, or disconnect both battery banks completely.

Designed for demanding RV, marine, and mobile power systems, the switch is rated for up to 350 amps of continuous current and 1500 amps of engine-cranking current. Its ignition-protected construction, corrosion-resistant terminals, and flexible mounting options make it suitable for harsh mobile and marine environments.

Key Features

  • Four operating positions: Battery 1, Battery 2, Both, and Off

  • 350A continuous current rating

  • 500A intermittent current rating

  • 1500A cranking rating for up to 10 seconds

  • Supports electrical systems up to 48V DC

  • Ignition-protected construction

  • Tin-plated copper terminals for conductivity and corrosion resistance

  • Removable rear cover helps protect terminals against accidental contact

  • Removable side panels provide flexible cable access

  • Suitable for surface or recessed mounting

  • Ideal for RVs, campers, boats, work vehicles, and dual-battery systems

Specifications

  • Brand: BEP Marine

  • Model/Part Number: 721

  • UPC: 870216000589

  • Product Type: Heavy-Duty Battery Selector Switch

  • Switch Positions: 1 / 2 / Both / Off

  • Maximum Voltage: 48V DC

  • Continuous Rating: 350A

  • Intermittent Rating: 500A

  • Cranking Rating: 1500A for 10 seconds

  • Terminal Studs: 3 × 3/8 in (10 mm)

  • Dimensions: 4 × 4 × 3.5 in

  • Product Weight: Approximately 1.23 lb

  • Mounting Type: Surface or recessed

  • Application: RV, marine, automotive, and off-grid dual-battery systems

Important Note

This selector switch controls and isolates battery banks but does not protect sensitive electronics from engine-starting voltage spikes. Do not switch through the Off position while the engine or charging system is operating unless the installation has been specifically designed to permit it.

Eligible unused and uninstalled physical products may be returned
within 30 days after delivery.

Regular sale and discounted products are eligible for return.
Only products clearly marked “Final Sale” before purchase are
non-returnable.

Conditions and exclusions apply. See our Return and Refund Policy.

Free standard shipping is available on eligible physical-product orders delivered within the contiguous United States, with no minimum order amount.

Black Series generic replacement parts and products or orders that are oversized, require freight shipping, are special-order, contain hazardous materials, or are delivered to remote or limited-access areas are excluded. Any applicable shipping charge will be displayed at checkout before you submit your order.

In-stock products are generally processed within 1–2 business days. Estimated delivery is approximately 4–12 business days, depending on the product, destination, carrier, and delivery method.

Alaska, Hawaii, U.S. territories, and international destinations are not included in the contiguous United States free-shipping offer. See our Shipping Policy for complete details.

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